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Materials Research Institute  |  People  |  

Prof William Gillin

William Gillin

Professor of Experimental Physics

Department School of Physics and Astronomy
 G O Jones 123, Mile End
+44 (0)20 7882 5798

www.qmul.ac.uk/spa/people/academics/profiles/wgillin.html

Research

Semiconductors, Organic semiconductors, Optoelectronic properties, Spin transport, Organic Photonics

Research Interests

William Gillin works primarily on the electrical and optical properties of organic materials. He currently has two main areas of research. Organic gain materials for optical amplifiers and lasers based on lanthanide containing molecules and organic spintronics.

Lanthanide ions, such as erbium, are widely used in optical amplifiers and lasers due to their long intrinsic lifetime which makes population inversion possible. However, this same property means that they are very poor at absorbing light so powerful pump sources, such as lasers, are required to make optical amplifiers work. By incorporating the ion into an organic host it is possible to excite the organic directly and then transfer the energy directly to the lanthanide ion; this is called sensitization. Using this approach it may be possible to replace the high power pump laser with low cost LEDs. We have developed novel fluorinated organic molecules that allow us to produce materials where the quantum efficiency of the erbium ions is >50% and which exhibit sensitization of a factor of >10000. Using this approach we have demonstrated a prototype optical amplifier, operating at 1.5µm, that is deposited onto a silicon chip which has demonstrated population inversion when pumped from a low power light source.

Organic spintronics is the control and manipulation of electronic spin on individual organic molecules within an organic electronic device. This technology can, for example, be used to produce devices that are highly sensitive to weak magnetic fields. We have a programme that works on producing organic spinvalves and understanding spin injection and extraction in these devices and the role of interfacial layers on controlling those processes. We also work on understanding the spin interactions that occur within devices such as organic light emitting diodes and organic photovoltaic cells. Controlling these processes is vital to improving device performance as many of the quenching mechanisms are highly spin dependant.

Publications of specific relevance to Materials Research

Publications

2020

  • Li HF, Liu XQ, Lyu C, Gorbaciova J, Wen LL, Shan GG, Wyatt PB, Ye HQ and Gillin WP (2020). Enhanced 1.54-μm photo- and electroluminescence based on a perfluorinated Er(III) complex utilizing an iridium(III) complex as a sensitizer. Springer Nature [Academic Journals On Nature.Com]  Light: Science and Applications  vol. 9, (1) 10.1038/s41377-020-0266-3

2019

  • Borowiec J, Liang W, Boi FS, He Y, Wang SL and Gillin WP (2019). Aluminium promoted sulfidation of ammonium perrhenate: presence of nanobattery in the ReS2 composite material based memcapacitor. Elsevier Bv  Chemical Engineering Journal  123745-123745. 10.1016/j.cej.2019.123745
  • liu M, borowiec J, Sun LJ, Konop M, Rahman MM, Taallah A, Boi FS and Gillin W (2019). Experimental studies on the conduction mechanism and electrical properties of the inverted Ba doped ZnO nanoparticles based memristor. Aip Publishing  Applied Physics Letters  10.1063/1.5110888
  • KREOUZIS T, GILLIN WP and WENG Z (2019). Modelling and fitting the Polaron Pair Magnetoconductance model to obtain a realistic local hyperfine field in Tris-(8-hydroxyquinoline)aluminium based diodes. Nature Publishing Group  Scientific Reports  10.1038/s41598-019-40132-5

2018

  • HU J, KARAMSHUK S, GORBACIOVA J, YE H, LU H, ZHANG Y, zheng Y, liang X, motavalli M, ABRAHAMS I, WYATT P and GILLIN WP (2018). Enhancing the sensitization efficiency of erbium doped organic complexes by heavy halogen substitution. Royal Society of Chemistry  Journal of Materials Chemistry C  10.1039/C8TC00971F
  • Hu J, Wyatt PB, Gillin WP and Ye H (2018). Continuous Tuning of Organic Phosphorescence by Diluting Triplet Diffusion at the Molecular Level. J Phys Chem Lett  2022-2024. 10.1021/acs.jpclett.8b00673
  • GILLIN WP (2018). Type-II InAs/GaAsSb Quantum Dot Solar Cells With GaAs Interlayer. Institute of Electrical and Electronics Engineers  Ieee Journal of Photovoltaics  vol. 8, (3) 10.1109/JPHOTOV.2018.2815152
  • HU J, KARAMSHUK S, GORBACIOVA J, YE H, LU H, ZHANG Y, Zheng Y, Liang X, Hernandez I, WYATT PB and GILLIN WP (2018). High sensitization efficiency and energy transfer routes for population inversion at low pump intensity in Er organic complexes for IR amplification. Nature Publishing Group  Scientific Reports  10.1038/s41598-018-21700-7
  • TU Y, CHEN S, LI X, GORBACIOVA J, GILLIN WP, KRAUSE S and BRISCOE J (2018). Control of oxygen vacancies in ZnO nanorods by annealing and their influence on ZnO/PEDOT:PSS diode behaviour. Royal Society of Chemistry  Journal of Materials Chemistry C  10.1039/C7TC04284A
  • Borowiec J, Gillin WP, Willis MAC, Boi FS, He Y, Wen JQ, Wang SL and Schulz L (2018). Room temperature synthesis of ReS2through aqueous perrhenate sulfidation. J Phys Condens Matter  vol. 30, (5) 055702-055702. 10.1088/1361-648X/aaa474
  • Gillin W (2018). Foreword. 10.1016/B978-0-12-813840-3.09990-7

2017

  • Borowiec J, Gillin WP, Willis M, Boi F, He Y, Wen J, Wang S and Schulz L (2017). Room temperature synthesis of ReS2 through aqueous perrhenate sulfidation. Journal of Physics  10.1088/1361-648x/aaa474
  • Lu H, Peng Y, Ye HQ, Cui X, Hu JX, Gu H, Khlobystov A, Green M, Blower P, Wyatt PB, GILLIN WP and Hernandez I (2017). Sensitization, energy transfer and infra-red emission decay modulation in Yb3+-doped NaYF4 nanoparticles with visible light through a perfluoroanthraquinone chromophore. Nature Publishing Group  Scientific Reports  vol. 7, 10.1038/s41598-017-05350-9
  • Attanzio A, Sapelkin A, Gesuele F, van der Zande A, Gillin W, Zheng M and Palma M (2017). Carbon Nanotube-Quantum Dot Nanohybrids: Coupling with Single Particle Control in Aqueous Solution. Wiley - V C H Verlag Gmbbh & Co.  Small  10.1002/smll.201603042

2016

  • GILLIN WP, wyatt PB, Hernandez I, Ye HQ, Peng Y, Hu JX and LU H (2016). Functionalisation of ligands through click chemistry: long-lived NIR emission from organic Er(III) complexes with a perfluorinated core and a hydrogen-containing shell. Royal Society of Chemistry  Rsc Advances  10.1039/C6RA25494B
  • Gu H, Chang S, Lu H, Holford DF, Zhang T, Hu J, Gillin WP and Kreouzis T (2016). Impurity effects on charge transport and magnetoconductance in a single layer poly(3-hexyl-thiophene) device. Applied Physics Letters  vol. 108, (20) 203301-203301. 10.1063/1.4950859
  • Zhu J, McMorrow J, Crespo-Otero R, Ao G, Zheng M, Gillin WP and Palma M (2016). Solution-Processable Carbon Nanoelectrodes for Single-Molecule Investigations. J Am Chem Soc  vol. 138, (9) 2905-2908. 10.1021/jacs.5b12086
  • GILLIN WP, Zhang T, holford DF, Gu H, Kreouzis T and zhang S (2016). Hole-exciton interaction induced high field decay of magneto-electroluminescence in Alq3-based organic light-emitting diodes at room temperature. American Institute of Physics (Aip)  Applied Physics Letters  vol. 108, 10.1063/1.4939871

2015

  • Cui X, Mathe D, Kovacs N, Horvath I, Jauregui-Osoro M, Torres Martin de Rosales M, Mullen GED, Wong W, Yong Y, Kruger D, Khlobystov AN, Gimenez-Lopez M, Semjeni M, Szigeti K, Veres DS, Lu H, Hernandez I, Gillin WP, Protti A, Petik KK, Green MA and Blower PJ (2015). Synthesis, Characterization and Application of Core-Shell Co0.16Fe2.84O4@NaYF4(Yb, Er) and Fe3O4@NaYF4(Yb, Tm) Nanoparticle as Tri-modal (MRI, PET/SPECT and Optical) Imaging Agents. American Chemical Society  Bioconjugate Chemistry  vol. 27, (2) 319-328. 10.1021/acs.bioconjchem.5b00338
  • Coutinho JT, Pereira LCJ, Martín-Ramos P, Ramos Silva M, Zheng YX, Liang X, Ye HQ, Peng Y, Baker PJ, Wyatt PB and Gillin WP (2015). Field-induced single-ion magnetic behaviour in a highly luminescent Er3+ complex. Materials Chemistry and Physics  vol. 160, 429-434. 10.1016/j.matchemphys.2015.04.059
  • Gu H, Chang S, Holford D, Zhang T, Lu H, Kreouzis T and Gillin WP (2015). Annealing and doping-dependent magnetoresistance in single layer poly(3-hexyl-thiophene) organic semiconductor device. Organic Electronics  vol. 17, 51-56. 10.1016/j.orgel.2014.11.019
  • Hernández I and Gillin WP (2015). Organic Chromophores-Based Sensitization of NIR-Emitting Lanthanides: Toward Highly Efficient Halogenated Environments. Handbook On The Physics and Chemistry of Rare Earths  10.1016/B978-0-444-63481-8.00269-4

2014

  • Zhang HT, Han S, Desai P, Zhan YQ, Li W, Si W, Scott K, Drew AJ, Gillin WP, Zhang SJ and Kreouzis T (2014). Ferromagnetic-organic interfacial states and their role on low voltage current injection in tris-8-hydroxyquinloline (Alq3) organic spin valves. Applied Physics Letters  vol. 105, (20) 10.1063/1.4902539
  • Lu H, Gillin WP and Hernández I (2014). Concentration dependence of the up- and down-conversion emission colours of Er(3+)-doped Y2O3: a time-resolved spectroscopy analysis. Phys Chem Chem Phys  vol. 16, (38) 20957-20963. 10.1039/c4cp02028f
  • Coutinho JT, Pereira LCJ, Martín-Ramos P, Ramos Silva M, Zheng YX, Liang X, Ye HQ, Peng Y, Baker PJ, Wyatt PB and Gillin WP (2014). Field-induced single-ion magnetic behaviour in a highly luminescent Er3+ complex. Elsevier Ltd  Materials Chemistry and Physics  10.1016/j.matchemphys.2015.04.059
  • Gu H, Kreouzis T and Gillin WP (2014). The transition from bipolaron to triplet-polaron magnetoresistance in a single layer organic semiconductor device. Organic Electronics  vol. 15, (8) 1711-1716. 10.1016/j.orgel.2014.04.036
  • Peng Y, Ye H, Li Z, Motevalli M, Hernández I, Gillin WP and Wyatt PB (2014). Visible-Range Sensitization of Er3+-Based Infrared Emission from Perfluorinated 2-Acylphenoxide Complexes. American Chemical Society  J. Phys. Chem. Lett.  vol. 5, (9) 1560-1563. 10.1021/jz500519e
  • Droghetti A, Steil S, Grossmann N, Haag N, Zhang H, Willis M, Gillin WP, Drew AJ, Aeschlimann M, Sanvito S and Cinchetti M (2014). Electronic and magnetic properties of the interface between metal-quinoline molecules and cobalt. Physical Review B  vol. 89, (9) 10.1103/PhysRevB.89.094412
  • Zhang S, Willis M, Gotto R, Roy KA, Rolfe NJ, Kreouzis T and Gillin WP (2014). Understanding the role of electron and hole trions on current transport in aluminium tris(8-hydroxyquinoline) using organic magnetoresistance. Applied Physics Letters  vol. 104, (4) 10.1063/1.4863684
  • Zhang H, Desai P, Zhan YQ, Drew AJ, Gillin WP and Kreouzis T (2014). The importance of holes in aluminium tris-8-hydroxyquinoline (Alq(3)) devices with Fe and NiFe contacts. Applied Physics Letters  vol. 104, (1) 10.1063/1.4861120
  • You Y, Yang K, Yuan S, Dong S, Zhang H, Huang Q, Gillin WP, Zhan Y and Zheng L (2014). An organic multilevel non-volatile memory device based on multiple independent switching modes. Organic Electronics  vol. 15, (9) 1983-1989. 10.1016/j.orgel.2014.05.032
  • Ye HQ, Li Z, Peng Y, Wang CC, Li TY, Zheng YX, Sapelkin A, Adamopoulos G, Hernandez I, Wyatt PB and Gillin WP (2014). Organo-erbium systems for optical amplification at telecommunications wavelengths. Nature Publishing Group  Nature Materials  vol. 13, (April 2014) 382-386. 10.1038/NMAT3910

2013

  • Ye H, Peng Y, Li Z, Wang C-C, Zheng Y, Motevalli M, Wyatt PB, Gillin WP and Hernandez I (2013). Effect of Fluorination on the Radiative Properties of Er3+ Organic Complexes: An Opto-Structural Correlation Study. American Chemical Society  J Phys Chem C  vol. 117, (45) 23970-23975. 10.1021/jp4093282
  • Gillin W and Morley N (2013). Special issue: Spins in Organic Semiconductors 2012. Synthetic Metals  vol. 173, 1-1. 10.1016/j.synthmet.2013.03.001
  • Zhang S, Kreouzis T and Gillin WP (2013). Low temperature magnetic field effects on the efficiency of aluminium tris(8-hydroxyquinoline) based organic light emitting diodes in the absence of magnetoresistance. Synthetic Metals  vol. 173, 46-50. 10.1016/j.synthmet.2012.11.016
  • Hatch SM, Briscoe J, Sapelkin A, Gillin WP, Gilchrist JB, Ryan MP, Heutz S and Dunn S (2013). Influence of anneal atmosphere on ZnO-nanorod photoluminescent and morphological properties with self-powered photodetector performance. Ieee  J. Appl. Phys.  vol. 113, (20) 204501-9. 10.1063/1.4805349
  • (2013). Importance of spin-orbit interaction for the electron spin relaxation in organic semiconductors. Phys Rev Lett  vol. 110, (21) 10.1103/PhysRevLett.110.216602
  • Prezioso M, Riminucci A, Graziosi P, Bergenti I, Rakshit R, Cecchini R, Vianelli A, Borgatti F, Haag N, Willis M, Drew AJ, Gillin WP and Dediu VA (2013). A single-device universal logic gate based on a magnetically enhanced memristor. Adv Mater  vol. 25, (4) 534-538. 10.1002/adma.201202031
  • Li Z, Dellali A, Malik J, Motevalli M, Nix RM, Olukoya T, Peng Y, Ye H, Gillin WP, Hernández I and Wyatt PB (2013). Luminescent Zinc(II) Complexes of Fluorinated Benzothiazol-2-yl Substituted Phenoxide and Enolate Ligands. American Chemical Society  Inorg Chem  vol. 52, (3) 1379-1387. 10.1021/ic302063u
  • Hernández I, Zheng Y-X, Motevalli M, Tan RHC, Gillin WP and Wyatt PB (2013). Efficient sensitized emission in Yb(III) pentachlorotropolonate complexes. Chemical Communications  vol. 49, (19) 1933-1935. 10.1039/c3cc38610d

2012

2011

  • Schulz L, Willis M, Nuccio L, Shusharov P, Fratini S, Pratt FL, Gillin WP, Kreouzis T, Heeney M, Stingelin N, Stafford CA, Beesley DJ, Bernhard C, Anthony JE, McKenzie I, Lord JS and Drew AJ (2011). Importance of intramolecular electron spin relaxation in small molecule semiconductors. Phys Rev B  vol. 84, (8) 10.1103/PhysRevB.84.085209
  • Etchart I, Bérard M, Laroche M, Huignard A, Hernández I, Gillin WP, Curry RJ and Cheetham AK (2011). Efficient white light emission by upconversion in Yb(3+)-, Er(3+)- and Tm(3+)-doped Y2BaZnO5. Chem Commun (Camb)  vol. 47, (22) 6263-6265. 10.1039/c1cc11427a
  • Etchart I, Hernandez I, Huignard A, Berard M, Laroche M, Gillin WP, Curry RJ and Cheetham AK (2011). Oxide phosphors for light upconversion; Yb3+ and Tm3+ co-doped Y2BaZnO5. J Appl Phys  vol. 109, (6) 10.1063/1.3549634
  • Schulz L, Nuccio L, Willis M, Desai P, Shakya P, Kreouzis T, Malik VK, Bernhard C, Pratt FL, Morley NA, Suter A, Nieuwenhuys GJ, Prokscha T, Morenzoni E, Gillin WP and Drew AJ (2011). Engineering spin propagation across a hybrid organic/inorganic interface using a polar layer. Nat Mater  vol. 10, (3) 10.1038/nmat2962
  • Adamopoulos G, Bashir A, Gillin WP, Georgakopoulos S, Shkunov M, Baklar MA, Stingelin N, Bradley DDC and Anthopoulos TD (2011). Structural and Electrical Characterization of ZnO Films Grown by Spray Pyrolysis and Their Application in Thin-Film Transistors. Adv Funct Mater  vol. 21, (3) 525-531. 10.1002/adfm.201001089
  • Etchart I, Hernandez I, Huignard A, Berard M, Gillin WP, Curry RJ and Cheetham AK (2011). Efficient oxide phosphors for light upconversion; green emission from Yb3+ and Ho3+ co-doped Ln(2)BaZnO(5) (Ln = Y, Gd). J Mater Chem  vol. 21, (5) 1387-1394. 10.1039/c0jm01652g
  • Schulz L, Nuccio L, Willis M, Desai P, Shakya P, Kreouzis T, Malik VK, Bernhard C, Pratt FL, Morley NA, Suter A, Nieuwenhuys GJ, Prokscha T, Morenzoni E, Gillin WP and Drew AJ (2011). Engineering spin propagation across a hybrid organic/inorganic interface using a polar layer. Nat Mater  vol. 10, (1) 39-44. 10.1038/nmat2912

2010

  • Hernández I, Pathumakanthar N, Wyatt PB and Gillin WP (2010). Cooperative infrared to visible up conversion in Tb3+, Eu3+, And Yb3+ containing polymers. Adv Mater  vol. 22, (47) 5356-5360. 10.1002/adma.201002674
  • Gillin WP, Zhang SJ, Rolfe NJ, Desai P, Shakya P, Drew AJ and Kreouzis T (2010). Determining the influence of excited states on current transport in organic light emitting diodes using magnetic field perturbation. Phys Rev B  vol. 82, (19) 10.1103/PhysRevB.82.195208
  • Adamopoulos G, Bashir A, Thomas S, Gillin WP, Georgakopoulos S, Shkunov M, Baklar MA, Stingelin N, Maher RC, Cohen LF, Bradley DDC and Anthopoulos TD (2010). Spray-deposited Li-doped ZnO transistors with electron mobility exceeding 50 cm²/Vs. Adv Mater  vol. 22, (42) 4764-4769. 10.1002/adma.201001444
  • Song JY, Stingelin N, Drew AJ, Kreouzis T and Gillin WP (2010). Effect of excited states and applied magnetic fields on the measured hole mobility in an organic semiconductor. Phys Rev B  vol. 82, (8) 10.1103/PhysRevB.82.085205
  • Dhandapani D, Morley NA, Gibbs MRJ, Kreouzis T, Shakya P, Desai P and Gillin WP (2010). The Effect of Injection Layers on a Room Temperature Organic Spin Valve. Ieee T Magn  vol. 46, (6) 1307-1310. 10.1109/TMAG.2010.2043818
  • Etchart I, Huignard A, Berard M, Nordin MN, Hernandez I, Curry RJ, Gillin WP and Cheetham AK (2010). Oxide phosphors for efficient light upconversion: Yb3+ and Er3+ co-doped Ln(2)BaZnO(5) (Ln = Y, Gd). J Mater Chem  vol. 20, (19) 3989-3994. 10.1039/c000127a

2009

  • Rolfe NJ, Heeney M, Wyatt PB, Drew AJ, Kreouzis T and Gillin WP (2009). Elucidating the role of hyperfine interactions on organic magnetoresistance using deuterated aluminium tris(8-hydroxyquinoline). Phys Rev B  vol. 80, (24) 10.1103/PhysRevB.80.241201
  • Hernández I and Gillin WP (2009). Influence of high hydrostatic pressure on Alq3, Gaq3, and Inq3 (q = 8-hydroxyquinoline). J Phys Chem B  vol. 113, (43) 14079-14086. 10.1021/jp905108x
  • Zhang SJ, Song JY, Kreouzis T and Gillin WP (2009). Measurement of the intersystem crossing rate in aluminum tris(8-hydroxyquinoline) and its modulation by an applied magnetic field. J Appl Phys  vol. 106, (4) 10.1063/1.3204015
  • Zheng Y, Pearson J, Tan RHC, Gillin WP and Wyatt PB (2009). Erbium bis(pentafluorophenyl)phosphinate: a new hybrid material with unusually long-lived infrared luminescence (vol 20, pg S430, 2009). J Mater Sci-Mater El  vol. 20, (8) 788-788. 10.1007/s10854-009-9915-2
  • Hernández I, Tan RHC, Pearson JM, Wyatt PB and Gillin WP (2009). Nonradiative de-excitation mechanisms in long-lived erbium(III) organic compounds ErxY1-x[(p-CF3-C6F4)2PO2]3. J Phys Chem B  vol. 113, (21) 7474-7481. 10.1021/jp810932s
  • Drew AJ, Hoppler J, Schulz L, Pratt FL, Desai P, Shakya P, Kreouzis T, Gillin WP, Suter A, Morley NA, Malik VK, Dubroka A, Kim KW, Bouyanfif H, Bourqui F, Bernhard C, Scheuermann R, Nieuwenhuys GJ, Prokscha T and Morenzoni E (2009). Direct measurement of the electronic spin diffusion length in a fully functional organic spin valve by low-energy muon spin rotation. Nat Mater  vol. 8, (2) 109-114. 10.1038/NMAT2333
  • Zheng Y, Pearson J, Tan RHC, Gillin WP and Wyatt PB (2009). Erbium bis(pentafluorophenyl) phosphinate: a new hybrid material with unusually long-lived infrared luminescence. Journal of Materials Science-Materials in Electronics  vol. 20, 430-434. 10.1007/s10854-008-9662-9

2008

  • Song JY, Stingelin N, Gillin WP and Kreouzis T (2008). Reduced hole mobility due to the presence of excited states in poly-(3-hexylthiophene). Appl Phys Lett  vol. 93, (23) 10.1063/1.3049129
  • Shakya P, Desai P, Kreouzis T, Gillin WP, Tuladhar SM, Ballantyne AM and Nelson J (2008). The effect of applied magnetic field on photocurrent generation in poly-3-hexylthiophene:[6,6]-phenyl C61-butyric acid methyl ester photovoltaic devices. Journal of Physics-Condensed Matter  vol. 20, (45) 10.1088/0953-8984/20/45/452203
  • Rolfe N, Desai P, Shakya P, Kreouzis T and Gillin WP (2008). Separating the roles of electrons and holes in the organic magnetoresistance of aluminum tris(8-hydroxyquinoline) organic light emitting diodes. J Appl Phys  vol. 104, (8) 10.1063/1.3000454
  • Shakya P, Desai P, Somerton M, Gannaway G, Kreouzis T and Gillin WP (2008). The magnetic field effect on the transport and efficiency of group III tris(8-hydroxyquinoline) organic light emitting diodes. J Appl Phys  vol. 103, (10) 10.1063/1.2932079
  • Shakya P, Desai P, Curry RJ and Gillin WP (2008). Improved electron injection into Alq(3) based devices using a thin Erq(3) injection layer. J Phys D Appl Phys  vol. 41, (8) 10.1088/0022-3727/41/8/085108
  • Zheng YX, Motevalli M, Tan RHC, Abrahams I, Gillin WP and Wyatt PB (2008). Near IR luminescent rare earth 3,4,5,6-tetrafluoro-2-nitrophenoxide complexes: Synthesis, X-ray crystallography and spectroscopy. Polyhedron  vol. 27, (5) 1503-1510. 10.1016/j.poly.2008.01.022
  • Drew AJ, Pratt FL, Hoppler J, Schulz L, Malik-Kumar V, Morley NA, Desai P, Shakya P, Kreouzis T, Gillin WP, Kim KW, Dubroka A and Scheuermann R (2008). Intrinsic mobility limit for anisotropic electron transport in Alq3. Phys Rev Lett  vol. 100, (11) 10.1103/PhysRevLett.100.116601
  • Tan RHC, Pearson JM, Zheng Y, Wyatt PB and Gillin WP (2008). Evidence for erbium-erbium energy migration in erbium(III) bis(perfluoro-p-tolyl)phosphinate. Appl Phys Lett  vol. 92, (10) 10.1063/1.2896105
  • Shakya P, Desai P, Kreouzis T and Gillin WP (2008). Magnetoresistance in triphenyl-diamine derivative blue organic light emitting devices. J Appl Phys  vol. 103, (4) 10.1063/1.2885097
  • Rolfe N, Desai P, Shakya P, Kreouzis T and Gillin WP (2008). Separating the roles of electrons and holes in the organic magnetoresistance of aluminum tris(8-hydroxyquinoline) organic light emitting diodes. Journal of Applied Physics  vol. 104, 10.1063/1.3000454

2007

  • Desai P, Shakya P, Kreouzis T and Gillin WP (2007). Magnetoresistance in organic light-emitting diode structures under illumination. Phys Rev B  vol. 76, (23) 10.1103/PhysRevB.76.235202
  • Desai P, Shakya P, Kreouzis T and Gillin WP (2007). The role of magnetic fields on the transport and efficiency of aluminum tris(8-hydroxyquinoline) based organic light emitting diodes. J Appl Phys  vol. 102, (7) 10.1063/1.2787158
  • Penna S, Reale A, Pizzoferrato R, Beleffi GMT, Musella D and Gillin WP (2007). Near-infrared photoluminescence of erbium tris(8-hydroxyquinoline) spin-coated thin films induced by low coherence light sources. Appl Phys Lett  vol. 91, (2) 10.1063/1.2755933
  • Desai P, Shakya P, Kreouzis T, Gillin WP, Morley NA and Gibbs MRJ (2007). Magnetoresistance and efficiency measurements of Alq(3)-based OLEDs. Phys Rev B  vol. 75, (9) 10.1103/PhysRevB.75.094423
  • GILLIN WP (2007). Magnetoresistance and efficiency measurements of Alq3-based OLEDs. Phys. Rev. B  vol. 75, 094423-094429. 10.1103/PhysRevB.75.094423
  • Bollet F and Gillin WP (2007). Characterization of interdiffusion around miscibility gap of lattice matched InGaAs/InP quantum wells by high resolution x-ray diffraction. J Appl Phys  vol. 101, (1) 10.1063/1.2404784

2006

  • Tan RHC, Motevalli M, Abrahams I, Wyatt PB and Gillin WP (2006). Quenching of IR luminescence of erbium, neodymium, and ytterbium beta-diketonate complexes by ligand C-H and C-D bonds. J Phys Chem B  vol. 110, (48) 24476-24479. 10.1021/jp0654462
  • Wyatt P, Abrahams I, GILLIN WP, Tan RHC and Motevalli M (2006). Quenching of IR Luminescence of Erbium, Neodymium, and Ytterbium alpha-Diketonate Complexes by Ligand C-H and C-D Bonds. Journal of Physical Chemistry B  vol. 110, (48) 24476-24479. 10.1021/jp0654462
  • Winkless L, Tan RHC, Zheng Y, Motevalli M, Wyatt PB and Gillin WP (2006). Quenching of Er(III) luminescence by ligand C-H vibrations: Implications for the use of erbium complexes in telecommunications. Appl Phys Lett  vol. 89, (11) 10.1063/1.2345909

2005

  • (2005). Measurement of the size effect in the yield strength of nickel foils. Phil Mag Lett  vol. 85, (7) 339-343. 10.1080/09500830500071564
  • Bollet F, Gillin WP, Hopkinson M and Gwilliam R (2005). Concentration dependent interdiffusion in InGaAs/GaAs as evidenced by high resolution x-ray diffraction and photoluminescence spectroscopy. J Appl Phys  vol. 97, (1) 10.1063/1.1825613

2004

  • Desai P, Somerton M, Curry RJ and Gillin WP (2004). Time-resolved photoluminescence excitation characterisation of lanthanide and group III tris-(8-hydroxyquinoline) molecules. Ieice T Electron  vol. E87C, (12) 2023-2027.
  • Zheng YX, Zhou YH, Yu JB, Yu YN, Zhang HJ and Gillin WP (2004). Electrolummescence from (5)Do -> F-7(J) and D-5(1) -> F-7(J) (J=0-4) transitions with a europium complex as emitter. J Phys D Appl Phys  vol. 37, (4) 531-534. 10.1088/0022-3727/37/4/004

2003

2002

  • Curry RJ, Gillin WP, Clarkson J and Batchelder DN (2002). Morphological study of aluminum tris(8-hydroxyquinoline) thin films using infrared and Raman spectroscopy. J Appl Phys  vol. 92, (4) 1902-1905. 10.1063/1.1495527
  • Sutton JA, Gillin WP, Grattan TJ, Clarke GD and Kilminster SG (2002). A new laser pain threshold model detects a faster onset of action from a liquid formulation of 1 g paracetamol than an equivalent tablet formulation. Brit J Clin Pharmaco  vol. 53, (1) 43-47. 10.1046/j.0306-5251.2001.01527.x

2001

  • Curry RJ and Gillin WP (2001). Electroluminescence of organolanthanide based organic light emitting diodes. Curr Opin Solid St M  vol. 5, (6) 481-486. 10.1016/S1359-0286(02)00010-4
  • Khreis OM, Gillin WP, Somerton M and Curry RJ (2001). 980 nm electroluminescence from ytterbium tris(8-hydroxyquinoline). Elsevier/Science Direct  Organic Electronics  vol. 2, (1) 45-51. 10.1016/S1566-1199(00)00014-8

2000

  • Curry RJ, Gillin WP, Knights AP and Gwilliam R (2000). Silicon-based organic light-emitting diode operating at a wavelength of 1.5 mu m. Applied Physics Letters  vol. 77, (15) 2271-2273. 10.1063/1.1316064
  • Curry RJ and Gillin WP (2000). Radiative recombination mechanisms in aluminum tris(8-hydroxyquinoline): Evidence for triplet exciton recombination. Journal of Applied Physics  vol. 88, (2) 781-785. 10.1063/1.373802
  • Khreis OM, Curry RJ, Somerton M and Gillin WP (2000). Infrared organic light emitting diodes using neodymium tris-(8-hydroxyquinoline). Journal of Applied Physics  vol. 88, (2) 777-780. 10.1063/1.373803

1999

  • Curry RJ and Gillin WP (1999). 1.54 mu m electroluminescence from erbium (III) tris(8-hydroxyquinoline) (ErQ)-based organic light-emitting diodes. Applied Physics Letters  vol. 75, (10) 1380-1382. 10.1063/1.124700
  • Curry RJ and Gillin WP (1999). 1.54 μm electroluminescence from erbium (III) tris(8-hydroxyquinoline) (ErQ)-based organic light-emitting diodes. Applied Physics Letters  vol. 75, (10) 1380-1382. 10.1063/1.124700
  • Gillin WP and Curry RJ (1999). Erbium (III) tris(8-hydroxyquinoline) (ErQ): A potential material for silicon compatible 1.5 mu m emitters. Applied Physics Letters  vol. 74, (6) 798-799. 10.1063/1.123371
  • Gillin WP (1999). Effect of strain on the interdiffusion of InGaAs/GaAs heterostructures. Journal of Applied Physics  vol. 85, (2) 790-793. 10.1063/1.369160

1998

  • Ghosh S, Arora BM, Homewood KP, Gillin WP, Khreis OM and Singer KE (1998). Contactless electro-reflectance study of interdiffusion in heat-treated GaAs1-xSbx/GaAs single quantum wells. Journal of Physics-Condensed Matter  vol. 10, (43) 9865-9874. 10.1088/0953-8984/10/43/031
  • Khreis OM, Homewood KP, Gillin WP and Singer KE (1998). Intermixing in GaAsSb/GaAs single quantum wells. Journal of Applied Physics  vol. 84, (7) 4017-4019. 10.1063/1.368583
  • Khreis OM, Homewood KP and Gillin WP (1998). Interdiffusion in InGaAs/GaAs: The effect of growth conditions. Journal of Applied Physics  vol. 84, (1) 232-236. 10.1063/1.368079
  • Naveed AT, Huda MQ, Abd El-Rahman KF, Hartung J, Evans-Freeman JH, Peaker AR, Houghton DC, Jeynes C and Gillin WP (1998). Erbium in silicon-germanium quantum wells. Journal of Luminescence  vol. 80, (1-4) 381-386. 10.1016/S0022-2313(98)00133-1

1997

  • Huda MQ, Peaker AR, Evans-Freeman JH, Houghton DC and GILLIN WP (1997). Strong luminescence from erbium in Si/Si1-xGex/Si quantum well structures. Electron. Letts.  vol. 33, 1182-1183. 10.1049/el:19970750
  • Wee SF, Chai MK, Homewood KP and Gillin WP (1997). The activation energy for GaAs/AlGaAs interdiffusion. Journal of Applied Physics  vol. 82, (10) 4842-4846. 10.1063/1.366345
  • Khreis OM, Gillin WP and Homewood KP (1997). Interdiffusion: A probe of vacancy diffusion in III-V materials. Physical Review B  vol. 55, (23) 15813-15818. 10.1103/PhysRevB.55.15813
  • Jafri ZH and Gillin WP (1997). The Fermi level effect in III-V intermixing: The final nail in the coffin? Journal of Applied Physics  vol. 81, (5) 2179-2184. 10.1063/1.364270

1996

  • Chai MK, Wee SF, Homewood KP, Gillin WP, Cloitre T and Aulombard RL (1996). An optical study of interdiffusion in ZnSe/ZnCdSe. Applied Physics Letters  vol. 69, (11) 1579-1581. 10.1063/1.117036
  • Kozanecki A, Kaczanowski J, Sealy BJ and Gillin WP (1996). Analysis of strain in ultra-thin GaAs/In0.2Ga0.8 As/GaAs single quantum well structures by channeling technique. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions With Materials and Atoms  vol. 118, (1-4) 640-644. 10.1016/0168-583X(95)01081-5

1995

  • GILLIN WP, Perrin S and Homewood KP (1995). Comparative study of silicon nitride and phosphine overpressure annealing on the interdiffusion of InGaAsP/InGaAs heterostructures. Journal of Applied Physics  vol. 77, 1463-1465. 10.1063/1.358893
  • Cristiano F, Zhang JP, Wilson RJ, GILLIN WP and Hemment PLF (1995). Control of defect in C+, Ge+, and Er+ implanted Si using post amorphisation and solid phase regrowth. Nuclear Instruments and Methods B  vol. 96, 265-270. 10.1016/0168-583X(94)00497-8

1994

  • GILLIN WP, Kimber AC, Dunstan DJ and Webb RP (1994). Diffusion of ion beam created vacancies and their effect on intermixing; a Gambler’s Ruin approach. Journal of Applied Physics  vol. 76, 3367-3371. 10.1063/1.357462
  • Kozanecki A, Sealy BJ, GILLIN WP and Jeynes CJ (1994). Interdiffusion and thermally induced strain relaxation in GaAs/InGaAs/GaAs single quantum well structures. Nuclear Instruments and Methods in Physics Research B  192-196. 10.1016/0168-583X(94)95812-2
  • Kozanecki A and GILLIN WP (1994). Characterisation of thermally annealed InGaAs/GaAs single quantum wells by optical spectroscopy and ion beam techniques. Applied Physics Letters  vol. 64, 40-42. 10.1063/1.110914
  • Kozanecki A, Gillin WP, Sealy BJ and Singer KE (1994). Thermally induced compositional disordering of InGaAs/GaAs and GaAsSb/GaAs single quantum wells. Materials Science Forum  vol. 143-4, (pt 1) 605-610. 10.4028/www.scientific.net/MSF.143-147.605
  • Rao SS, Gillin WP and Homewood KP (1994). Interdiffusion of the group-III sublattice in In-Ga-As-P/In-Ga-As-P and In-Ga-As/In-Ga-As heterostructures. Phys Rev B Condens Matter  vol. 50, (11) 8071-8073. 10.1103/physrevb.50.8071
  • Gillin WP and Dunstan DJ (1994). Strain and interdiffusion in semiconductor heterostructures. Phys Rev B Condens Matter  vol. 50, (11) 7495-7498. 10.1103/physrevb.50.7495
  • Peyre H, Camassel J, Gillin WP, Homewood KP and Grey R (1994). Thermally induced change in the profile of GaAs/AlGaAs quantum wells. Materials Science and Engineering B  vol. 28, (1-3) 332-336. 10.1016/0921-5107(94)90077-9

1993

  • GILLIN WP, Bradley IV, Rao SS, Homewood KP, Sealy BJ, Howard LK, Smith AD and Briggs ATR (1993). Vacancy controlled interdiffusion in III-V heterostructures. Material Science and Engineering 8  281-283. 10.1016/0921-5107(93)90367-V
  • Kozanecki A and GILLIN WP (1993). Thermally induced intermixing of InGaAs/GaAs single quantum wells. Acta Physica Polonica A  vol. 84, 621-624. 10.12693/APhysPolA.84.621
  • GILLIN WP, Rao SS, Bradley IV, Homewood KP, smith AD and briggs ATR (1993). Vacancy controlled interdiffusion of the Group V sublattice in strained In0.66Ga0.33As/In0.66Ga0.33As0.7P0.3 quantum wells. Applied Physics Letters  vol. 63, 797-799. 10.1063/1.109911
  • GILLIN WP, Bradley IV, Howard LK, Gwilliam R and Homewood KP (1993). The effects of silicon and beryllium on the interdiffusion of GaAs/AlGaAs and InGaAs/GaAs quantum well structures. Journal of Applied Physics  vol. 73, 7715-7719. 10.1063/1.353969
  • Bradley IV, GILLIN WP, Homewood KP and Grey R (1993). Comparison of the effects of ion implantation induced interdiffusion in GaAs/AlGaAs and InGaAs/GaAs single quantum wells. Nuclear Instruments and Methods in Physics Research B  vol. 80, 747-750. 10.1016/0168-583X(93)90673-T
  • GILLIN WP, Dunstan DJ, Homewood KP, Howard LK and Sealy BJ (1993). Interdiffusion in InGaAs/GaAs quantum well structures as a function of depth. Journal of Applied Physics  vol. 73, 3782-3786.
  • GILLIN WP, Bradley IV, Homewood KP and Webb RP (1993). The effect of gallium implantation on the intermixing of InGaAs/GaAs strained quantum wells. Solid State Communications  vol. 85, 197-198. 10.1016/0038-1098(93)90436-Q
  • Bradley IV, GILLIN WP, Homewood KP and Webb RP (1993). The effects of ion implantation on the interdiffusion coefficient in InGaAs/GaAs quantum well structures. Journal of Applied Physics  vol. 73, 1686-1692. 10.1063/1.353204
  • Gillin WP, Dunstan DJ, Homewood KP, Howard LK and Sealy BJ (1993). Interdiffusion in InGaAs/GaAs quantum well structures as a function of depth. Journal of Applied Physics  vol. 73, (8) 3782-3786. 10.1063/1.352884
  • GILLIN WP, Peyre H, Camassel J, Homewood KP, Bradley IV and Grey R (1993). The effect of the thermal interdiffusion on the excitonic reflectivity spectra of InGaAs/GaAs quantum well structures. Journal De Physique Iv  vol. 3, 291-294.

1992

  • Mahmood F, Ahmed H, Jeynes CJ and GILLIN WP (1992). Reactive formation of cobalt silicide on single crystal silicon under rapid electron beam heating. Applied Surface Science  vol. 59, 55-63. 10.1016/0169-4332(92)90168-W
  • GILLIN WP (1992). Photoluminescence of acceptor states in mercury implanted gallium arsenide. Journal of Applied Physics  vol. 71, 2021-2022. 10.1063/1.351142

1991

  • GILLIN WP, Zhang JP and Sealy BJ (1991). Rutherford backscattering and secondary ion mass spectrometry studies of Er implanted silicon. Solid State Communications  vol. 77, 907-910. 10.1016/0038-1098(91)90344-U
  • GILLIN WP, Homewood KP, Sealy BJ and Roberts J (1991). Photoluminescence of deep levels in S implanted AlGaAs. Applied Physics Letters  vol. 58, 1404-1406. 10.1063/1.105206
  • GILLIN WP, Homewood KP, Howard LK and Emeny MT (1991). Thermal interdiffusion in InGaAs/GaAs strained quantum wells as a function of doping density. Superlattices and Microstructures  vol. 9, 39-42. 10.1016/0749-6036(91)90089-A
  • GILLIN WP, Sealy BJ and Homewood KP (1991). Thermal interdiffusion in InGaAs/GaAs and GaAsSb/GaAs strained quantum wells as a function of doping density. Optical and Quantum Electronics  vol. 23, S975-S980. 10.1007/BF00624986
  • Soares JC, Melo AA, Alves E, da Silva MF, GILLIN WP and Sealy BJ (1991). Lattice site location and out diffusion of Hg implanted GaAs. Nuclear Instruments and Methods in Physics Research B  vol. 59, 1090-1093. 10.1016/0168-583X(91)95771-5
  • Whitehead NJ, Gillin WP, Bradley IV, Weiss BL and Claxton P (1991). Erratum: Disorder-induced mixing of InGaAs/InP multiple quantum wells by phosphorus implantation for optical wave-guides (Semiconductor Science and Technology (1990) 5 (1063-1066). Semiconductor Science and Technology  vol. 6, (11) 10.1088/0268-1242/5/11/515

1990

  • Homewood KP, GILLIN WP, Pritchard RE, Truscott WS and Singer KE (1990). Thermal processing of GaAsSb/GaAs low dimensional strained layer structures. Superlattices and Microstructures  vol. 7, 359-361. 10.1016/0749-6036(90)90226-W
  • Whitehead NJ, GILLIN WP, Bradley IV, Weiss BL and Claxton P (1990). Disorder induced mixing of InGaAs/InP MQW by phosphorus implantation for optical waveguides. Semiconductor Science and Technology  vol. 5, 1063-1066. 10.1088/0268-1242/5/10/009
  • GILLIN WP, Tang YS, Whitehead NJ, Homewood KP, Sealy BJ, Emeny MT and Whitehouse CR (1990). Thermal processing of strained GaInAs/GaAs high hole mobility transistor structures. Applied Physics Letters  vol. 56, 1116-1118. 10.1063/1.102585
  • Whitehead NJ, Gillin WP, Bradley IV, Weiss BL and Claxton P (1990). Erratum: Disorder-induced mixing of InGaAs/InP multiple quantum wells by phosphorus implantation for optical wave-guides (Semiconductor Science and Technology (1990) 5 (1063-1066). Semiconductor Science and Technology  vol. 5, (11) 10.1088/0268-1242/5/11/515

1989

  • Tang ACT, Gardner SR, Sealy BJ and GILLIN WP (1989). Abrupt p+ layers in GaAs by 200ºC Hg implantation. Electronics Letters  vol. 25, 1618-1619. 10.1049/el:19891084
  • Whitehead NJ, Gwilliam RM, GILLIN WP and Sealy BJ (1989). The use of Hall effect profiling to monitor the reactivation of silicon implants after oxygen implants in GaAs. Vacuum  vol. 39, 1149-1151. 10.1016/0042-207X(89)91110-X
  • Whitehead NJ, GILLIN WP and Sealy BJ (1989). The effects of air-semiconductor depletion on Hall effect profiling of ion implanted semiconductors. Solid State Electronics  vol. 32, 1045-1047. 10.1016/0038-1101(89)90170-6
  • tang YS, heasman KC, GILLIN WP and Sealy BJ (1989). Characteristics of rare earth element erbium implanted in silicon. Applied Physics Letters  vol. 55, 432-433. 10.1063/1.101888

Grants of specific relevance to Materials Research

Grants

  • Centre for Advanced Materials for Integrated Energy Systems (CAM-IES)
    Grey CP, Hofmann S, Kar-Narayan S, Dutton SE, Friend RH, Bronstein HA, Metcalfe IS, Nielsen CB, Sirringhaus H, Cacialli F, Driscoll JL and Gillin WP
    £2,098,617 Engineering and Physical Sciences Research Council (01-12-2016 - 30-11-2020)
    Abstract
  • Sino-British Institute for Materials Research
    Gillin WP
    £70,718 Engineering and Physical Sciences Research Council (30-11-2014 - 29-11-2016)
    Abstract

  • GLOBAL - QM-CHINA
    Kilburn JD, Cuthbert LG, Cavallaro AA, Uhlig S, Chen X, Gillin WP and Welch E
    £499,419 Engineering and Physical Sciences Research Council (31-03-2012 - 31-03-2013)
    Abstract
  • Knowledge Transfer Account - Queen Mary, University of London
    Gillin WP and Marsh W
    £2,921,292 Engineering and Physical Sciences Research Council (30-09-2009 - 31-03-2013)
    Abstract