Research

organic electronics, organic bioelectronics, semiconducting polymers, materials chemistry

Research Interests

My research is centred around the design and synthesis of new semiconducting materials for organic electronic and bioelectronic applications with the aim of elucidating important structure-property relations and providing new tailored materials to advance the understanding and performance of organic electronic and bioelectronic devices such as organic solar cells, field-effect transistors and biosensors.

Publications of specific relevance to Materials Research

Publications

2022

• Cowen LM, Gilhooly-Finn PA, Giovannitti A, LeCroy G, Demetriou H, Neal W, Dong Y, Westwood M, Luong S, Fenwick O, Salleo A, Heutz S, Nielsen CB and Schroeder BC (2022). Critical analysis of self-doping and water-soluble n-type organic semiconductors: structures and mechanisms. Journal of Materials Chemistry C  10.1039/d2tc01108e
• Freychet G, Chantler P, Huang Y, Tan WL, Zhernenkov M, Nayak N, Kumar A, Gilhooly-Finn PA, Nielsen CB, Thomsen L, Roychoudhury S, Sirringhaus H, Prendergast D and McNeill CR (2022). Resolving the backbone tilt of crystalline poly(3-hexylthiophene) with resonant tender X-ray diffraction. Royal Society of Chemistry  Materials Horizons  10.1039/d2mh00244b
• Freychet G, Huang Y, Tan WL, Gilhooly-Finn PA, Nielsen CB, Sirringhaus H and McNeill CR (2022). Drastic Enhancement of X-ray Scattering Contrast between Amorphous and Crystalline Phases of Poly(3-hexylthiophene) at the Sulfur K-Edge. Acs Materials Letters  764-769. 10.1021/acsmaterialslett.2c00049
• Parr ZS, Borges-González J, Rashid RB, Thorley KJ, Meli D, Paulsen BD, Strzalka J, Rivnay J and Nielsen CB (2022). From p- to n-Type Mixed Conduction in Isoindigo-Based Polymers through Molecular Design. Adv Mater  e2107829-e2107829. 10.1002/adma.202107829

2021

• Duncan DA, Blowey PJ, Lee T-L, Allegretti F, Nielsen CB and Rochford LA (2021). Quantitative Insights into the Adsorption Structure of Diindeno[1,2‑a;1′,2′‑c]fluorene-5,10,15-trione (Truxenone) on a Cu(111) Surface Using X‑ray Standing Waves. Acs Omega  10.1021/acsomega.1c04799
• Duncan DA, Blowey PJ, Lee T-L, Allegretti F, Nielsen CB and Rochford LA (2021). Quantitative Insights into the Adsorption Structure of Diindeno[1,2-a;1 ',2 '-c]fluorene-5,10,15-trione (Truxenone) on a Cu(111) Surface Using X-ray Standing Waves. Acs Omega  10.1021/acsomegal.1c04799
• Guo Y, Yang X, Wang L, Duan J, Zhou Y, Nielsen CB, Yu Y, Yang J, Li Z, Yue W, Liu Y and McCulloch I (2021). Aldol Polymerization to Construct Half-Fused Semiconducting Polymers. Macromolecules  10.1021/acs.macromol.1c01740
• Kousseff CJ, Halaksa R, Parr ZS and Nielsen CB (2021). Mixed Ionic and Electronic Conduction in Small-Molecule Semiconductors. American Chemical Society  Chemical Reviews  10.1021/acs.chemrev.1c00314
• Jacobs IE, Lin Y, Huang Y, Ren X, Simatos D, Chen C, Tjhe D, Statz M, Lai L, Finn PA, Neal WG, D'Avino G, Lemaur V, Fratini S, Beljonne D, Strzalka J, Nielsen CB, Barlow S, Marder SR, McCulloch I and Sirringhaus H (2021). High-Efficiency Ion-Exchange Doping of Conducting Polymers. Adv Mater  e2102988-e2102988. 10.1002/adma.202102988
• Kousseff CJ, Taifakou FE, Neal WG, Palma M and Nielsen CB (2021). Controlling morphology, adhesion, and electrochromic behavior of PEDOT films through molecular design and processing. Journal of Polymer Science  10.1002/pol.20210522
• Zbiri M, Finn PA, Nielsen CB and Guilbert AAY (2021). Quantitative insights into the phase behaviour and miscibility of a photovoltaic active layer from the perspective of neutron spectroscopy. Journal of Materials Chemistry C  10.1039/d1tc01813b
• Weinbach Q, Nielsen CB and Biniek L (2021). Multi length scale porosity as a playground for organic thermoelectric applications. Journal of Materials Chemistry C  10.1039/d1tc02331d
• Finn PA, Asker C, Wan K, Bilotti E, Fenwick O and Nielsen CB (2021). Thermoelectric Materials: Current Status and Future Challenges. Frontiers in Electronic Materials  vol. 1, 677845-677845. 10.3389/femat.2021.677845
• Taifakou FE, Ali M, Borowiec J, Liu X, Finn P, Nielsen C, Timis C, NOONEY T, Bevan A and Kreouzis T (2021). Solution processed donor-acceptor, poly(3-hexylthiophene): phenyl-C61-butyric acid methyl ester diodes for low voltage alpha particle detection. American Chemical Society  Acs Applied Materials and Interfaces  10.1021/acsami.0c22210

2020

• Finn P, Jacobs IE, Armitage J, Wu R, Paulsen B, Freeley M, Palma M, Rivnay J, Sirringhaus H and Nielsen C (2020). Effect of polar side chains on neutral and p-doped polythiophene. Journal of Materials Chemistry C  10.1039/d0tc04290k
• Parr ZS and Nielsen CB (2020). Conjugated molecules for colourimetric and fluorimetric sensing of sodium and potassium. Materials Chemistry Frontiers  10.1039/d0qm00157k
• Parr ZS, Rashid RB, Paulsen BD, Poggi B, Tan E, Freeley M, Palma M, Abrahams I, Rivnay J and Nielsen CB (2020). Semiconducting Small Molecules as Active Materials for p-Type Accumulation Mode Organic Electrochemical Transistors. Advanced Electronic Materials  10.1002/aelm.202000215
• Bronstein H, Nielsen CB, Schroeder BC and McCulloch I (2020). The role of chemical design in the performance of organic semiconductors. Nature Research (Part of Springer Nature)  Nature Reviews Chemistry  10.1038/s41570-019-0152-9

2019

• Guilbert AAY, Zbiri M, Finn PA, Jenart M, Fouquet P, Cristiglio V, Frick B, Nelson J and Nielsen CB (2019). Mapping Micro-Structural Dynamics up to the nanosecond of the Conjugated Polymer P3HT in the Solid State. American Chemical Society  Chemistry of Materials  10.1021/acs.chemmater.9b02904
• Parr ZS, Halaksa R, Finn PA, Rashid RB, Kovalenko A, Weiter M, Rivnay J, Kraj?ovi? J and Nielsen CB (2019). Glycolated Thiophene-Tetrafluorophenylene Copolymers for Bioelectronic Applications: Synthesis by Direct Heteroarylation Polymerisation. Chempluschem  10.1002/cplu.201900254
• Parr ZS, Guo Z and Nielsen CB (2019). Conjugated polymers for n- and p-type charge transport. Conjugated Polymers: Perspective, Theory, and New Materials 
• Kang K, Schott S, Venkateshvaran D, Broch K, Schweicher G, Harkin D, Jellett C, Nielsen CB, McCulloch I and Sirringhaus H (2019). Investigation of the thermoelectric response in conducting polymers doped by solid-state diffusion. Materials Today Physics  vol. 8, 112-122. 10.1016/j.mtphys.2019.02.004
• BORGES GONZALEZ J, KOUSSEFF CJ and NIELSEN CB (2019). Organic semiconductors for biological sensing. Royal Society of Chemistry  Journal of Materials Chemistry C  10.1039/C8TC05900D

2018

• Nikolka M, Schweicher G, Armitage J, Nasrallah I, Jellett C, Guo Z, Hurhangee M, Sadhanala A, McCulloch I, Nielsen CB and Sirringhaus H (2018). Performance Improvements in Conjugated Polymer Devices by Removal of Water-Induced Traps. Adv Mater  e1801874-e1801874. 10.1002/adma.201801874
• Giovannitti A, Thorley KJ, Nielsen CB, Li J, Donahue MJ, Malliaras GG, Rivnay J and Mcculloch I (2018). Redox-Stability of Alkoxy-BDT Copolymers and their Use for Organic Bioelectronic Devices. Advanced Functional Materials  10.1002/adfm.201706325

2017

• Schott S, McNellis ER, Nielsen CB, Chen H-Y, Watanabe S, Tanaka H, McCulloch I, Takimiya K, Sinova J and Sirringhaus H (2017). Tuning the effective spin-orbit coupling in molecular semiconductors. Nat Commun  vol. 8, 15200-15200. 10.1038/ncomms15200
• Neophytou M, Griffiths J, Fraser J, Kirkus M, Chen H, Nielsen CB and McCulloch I (2017). High mobility, hole transport materials for highly efficient PEDOT:PSS replacement in inverted perovskite solar cells. Journal of Materials Chemistry C  vol. 5, (20) 4940-4945. 10.1039/c7tc00858a
• Spicer CD, Booth MA, Mawad D, Armgarth A, Nielsen CB and Stevens MM (2017). Synthesis of Hetero-bifunctional, End-Capped Oligo-EDOT Derivatives. Chem  vol. 2, (1) 125-138. 10.1016/j.chempr.2016.12.003
• Qiu W, Bastos JP, Dasgupta S, Merckx T, Cardinaletti I, Jenart MVC, Nielsen CB, Gehlhaar R, Poortmans J, Heremans P, McCulloch I and Cheyns D (2017). Highly efficient perovskite solar cells with crosslinked PCBM interlayers. Journal of Materials Chemistry A  vol. 5, (6) 2466-2472. 10.1039/c6ta08799j

2016

• Giovannitti A, Nielsen CB, Sbircea DT, Inal S, Donahue M, Niazi MR, Hanifi DA, Amassian A, Malliaras GG, Rivnay J and McCulloch I (2016). Erratum: N-type organic electrochemical transistors with stability in water (Nature Communications, (2016), 7, 1, (13066), 10.1038/ncomms13066). Nature Communications  vol. 7, (1) 10.1038/ncomms13955
• Giovannitti A, Sbircea D-T, Inal S, Nielsen CB, Bandiello E, Hanifi DA, Sessolo M, Malliaras GG, McCulloch I and Rivnay J (2016). Controlling the mode of operation of organic transistors through side-chain engineering. Proc Natl Acad Sci U S A  vol. 113, (43) 12017-12022. 10.1073/pnas.1608780113
• Knall AC, Ashraf RS, Nikolka M, Nielsen CB, Purushothaman B, Sadhanala A, Hurhangee M, Broch K, Harkin DJ, Novà k J, Neophytou M, Hayoz P, Sirringhaus H and McCulloch I (2016). Naphthacenodithiophene Based Polymers—New Members of the Acenodithiophene Family Exhibiting High Mobility and Power Conversion Efficiency. Advanced Functional Materials  vol. 26, (38) 6961-6969. 10.1002/adfm.201602285
• Giovannitti A, Nielsen CB, Sbircea DT, Inal S, Donahue M, Niazi MR, Hanifi DA, Amassian A, Malliaras GG, Rivnay J and McCulloch I (2016). N-type organic electrochemical transistors with stability in water. Nature Publishing Group: Nature Communications  Nature Communications  vol. 7, 10.1038/ncomms13066
• Rochford LA, Jones TS and Nielsen CB (2016). Epitaxial Templating of C60 with a Molecular Monolayer. American Chemical Society  Journal of Physical Chemistry Letters  vol. 7, (17) 3487-3490. 10.1021/acs.jpclett.6b01656
• Nielsen CB, Giovannitti A, Sbircea D-T, Bandiello E, Niazi MR, Hanifi DA, Sessolo M, Amassian A, Malliaras GG, Rivnay J and McCulloch I (2016). Molecular Design of Semiconducting Polymers for High-Performance Organic Electrochemical Transistors. J Am Chem Soc  vol. 138, (32) 10252-10259. 10.1021/jacs.6b05280
• Rochford LA, Ramadan AJ, Holliday S, Jones TS and Nielsen CB (2016). The effect of fluorination on the surface structure of truxenones. The Royal Society of Chemistry  Rsc Advances  vol. 6, (71) 67315-67318. 10.1039/c6ra14158g
• Nielsen CB and Hammerum S (2016). Secondary kinetic deuterium isotope effects. The CC cleavage of labeled tetramethylethylenediamine radical cations-Who gets to keep the electron? International Journal of Mass Spectrometry  10.1016/j.ijms.2016.05.023
• Guilbert AA, Zbiri M, Jenart MV, Nielsen CB and Nelson J (2016). New Insights into the Molecular Dynamics of P3HT:PCBM Bulk Heterojunction: A Time-of-Flight Quasi-Elastic Neutron Scattering Study. American Chemical Society  Journal of Physical Chemistry Letters  vol. 7, (12) 2252-2257. 10.1021/acs.jpclett.6b00537
• Holliday S, Ashraf RS, Wadsworth A, Baran D, Yousaf SA, Nielsen CB, Tan CH, Dimitrov SD, Shang Z, Gasparini N, Alamoudi M, Laquai F, Brabec CJ, Salleo A, Durrant JR and McCulloch I (2016). High-efficiency and air-stable P3HT-based polymer solar cells with a new non-fullerene acceptor. Nature Publishing Group: Nature Communications  Nature Communications  vol. 7, 11585-11585. 10.1038/ncomms11585
• Biniek L and Nielsen CB (2016). Organic photovoltaics: More than ever, an Interdisciplinary field. Polymers  vol. 8, (3) 10.3390/polym8030070
• Giovannitti A, Nielsen CB, Rivnay J, Kirkus M, Harkin DJ, White AJP, Sirringhaus H, Malliaras GG and McCulloch I (2016). Sodium and Potassium Ion Selective Conjugated Polymers for Optical Ion Detection in Solution and Solid State. Advanced Functional Materials  vol. 26, (4) 514-523. 10.1002/adfm.201503791
• Ramadan AJ, Nielsen CB, Holliday S, Jones TS, McCulloch I and Rochford LA (2016). Organic/inorganic epitaxy: Commensurate epitaxial growth of truxenone on Cu (111). Rsc Advances  vol. 6, (21) 17125-17128. 10.1039/c6ra01541g
• Dimitrov SD, Schroeder BC, Nielsen CB, Bronstein H, Fei Z, McCulloch I, Heeney M and Durrant JR (2016). Singlet exciton lifetimes in conjugated polymer films for organic solar cells. Polymers  vol. 8, (1) 10.3390/polym8010014
• Yue W, Nikolka M, Xiao M, Sadhanala A, Nielsen CB, White AJP, Chen HY, Onwubiko A, Sirringhaus H and McCulloch I (2016). Azaisoindigo conjugated polymers for high performance n-type and ambipolar thin film transistor applications. Journal of Materials Chemistry C  vol. 4, (41) 9704-9710. 10.1039/c6tc03000a

2015

• Nielsen CB, Holliday S, Chen HY, Cryer SJ and McCulloch I (2015). Non-Fullerene Electron Acceptors for Use in Organic Solar Cells. Accounts of Chemical Research  vol. 48, (11) 2803-2812. 10.1021/acs.accounts.5b00199
• Schroeder BC, Kirkus M, Nielsen CB, Ashraf RS and McCulloch I (2015). Dithienosilolothiophene: A New Polyfused Donor for Organic Electronics. Macromolecules  vol. 48, (16) 5557-5562. 10.1021/acs.macromol.5b00941
• Yue W, Ashraf RS, Nielsen CB, Collado-Fregoso E, Niazi MR, Yousaf SA, Kirkus M, Chen HY, Amassian A, Durrant JR and McCulloch I (2015). A Thieno[3,2-b][1]benzothiophene Isoindigo Building Block for Additive- and Annealing-Free High-Performance Polymer Solar Cells. Advanced Materials  vol. 27, (32) 4702-4707. 10.1002/adma.201501841
• Schroeder BC, Nielsen CB, Westacott P, Smith J, Rossbauer S, Anthopoulos TD, Stingelin N and McCulloch I (2015). Effects of alkyl chain positioning on conjugated polymer microstructure and field-effect mobilities. Mrs Communications  vol. 5, (3) 435-440. 10.1557/mrc.2015.49
• Nielsen CB, White AJP and McCulloch I (2015). Effect of Fluorination of 2,1,3-Benzothiadiazole. Journal of Organic Chemistry  vol. 80, (10) 5045-5048. 10.1021/acs.joc.5b00430
• Rumer JW, Ashraf RS, Eisenmenger ND, Huang Z, Meager I, Nielsen CB, Schroeder BC, Chabinyc ML and McCulloch I (2015). Dual function additives: A small molecule crosslinker for enhanced efficiency and stability in organic solar cells. Advanced Energy Materials  vol. 5, (9) 10.1002/aenm.201401426
• Ashraf RS, Meager I, Nikolka M, Kirkus M, Planells M, Schroeder BC, Holliday S, Hurhangee M, Nielsen CB, Sirringhaus H and McCulloch I (2015). Chalcogenophene comonomer comparison in small band gap diketopyrrolopyrrole-based conjugated polymers for high-performing field-effect transistors and organic solar cells. Journal of The American Chemical Society  vol. 137, (3) 1314-1321. 10.1021/ja511984q
• Holliday S, Ashraf RS, Nielsen CB, Kirkus M, Röhr JA, Tan CH, Collado-Fregoso E, Knall AC, Durrant JR, Nelson J and McCulloch I (2015). A rhodanine flanked nonfullerene acceptor for solution-processed organic photovoltaics. Journal of The American Chemical Society  vol. 137, (2) 898-904. 10.1021/ja5110602
• Nielsen CB, Ashraf RS, Treat ND, Schroeder BC, Donaghey JE, White AJP, Stingelin N and Mcculloch I (2015). 2,1,3-Benzothiadiazole-5,6-Dicarboxylic Imide - A Versatile Building Block for Additive- and Annealing-Free Processing of Organic Solar Cells with Efficiencies Exceeding 8%. Advanced Materials  10.1002/adma.201404858
• Qiu W, Paetzold UW, Gehlhaar R, Smirnov V, Boyen HG, Tait JG, Conings B, Zhang W, Nielsen CB, McCulloch I, Froyen L, Heremans P and Cheyns D (2015). An electron beam evaporated TiO2 layer for high efficiency planar perovskite solar cells on flexible polyethylene terephthalate substrates. Journal of Materials Chemistry A  vol. 3, (45) 22824-22829. 10.1039/c5ta07515g

2014

• Meager I, Nikolka M, Schroeder BC, Nielsen CB, Planells M, Bronstein H, Rumer JW, James DI, Ashraf RS, Sadhanala A, Hayoz P, Flores JC, Sirringhaus H and McCulloch I (2014). Thieno[3,2-b]thiophene flanked isoindigo polymers for high performance ambipolar OFET applications. Advanced Functional Materials  vol. 24, (45) 7109-7115. 10.1002/adfm.201402307
• Meager I, Ashraf RS, Nielsen CB, Donaghey JE, Huang Z, Bronstein H, Durrant JR and McCulloch I (2014). Power conversion efficiency enhancement in diketopyrrolopyrrole based solar cells through polymer fractionation. Journal of Materials Chemistry C  vol. 2, (40) 8593-8598. 10.1039/c4tc01594k
• Nielsen CB, Voroshazi E, Holliday S, Cnops K, Cheyns D and McCulloch I (2014). Electron-deficient truxenone derivatives and their use in organic photovoltaics. Journal of Materials Chemistry A  vol. 2, (31) 12348-12354. 10.1039/c4ta01653j
• Rumer JW, Schroeder BC, Nielsen CB, Ashraf RS, Beatrup D, Bronstein H, Cryer SJ, Donaghey JE, Holliday S, Hurhangee M, James DI, Lim S, Meager I, Zhang W and McCulloch I (2014). Bis-lactam-based donor polymers for organic solar cells: Evolution by design. Thin Solid Films  vol. 560, 82-85. 10.1016/j.tsf.2013.10.089
• Schroeder BC, Rossbauer S, Kline RJ, Biniek L, Watkins SE, Anthopoulos TD, McCulloch I and Nielsen CB (2014). Benzotrithiophene copolymers: Influence of molecular packing and energy levels on charge carrier mobility. Macromolecules  vol. 47, (9) 2883-2890. 10.1021/ma500163u
• Dimitrov SD, Huang Z, Deledalle F, Nielsen CB, Schroeder BC, Ashraf RS, Shoaee S, McCulloch I and Durrant JR (2014). Towards optimisation of photocurrent from fullerene excitons in organic solar cells. Energy and Environmental Science  vol. 7, (3) 1037-1043. 10.1039/c3ee42607f

2013

• Nielsen CB and McCulloch I (2013). Recent advances in transistor performance of polythiophenes. Progress in Polymer Science  vol. 38, (12) 2053-2069. 10.1016/j.progpolymsci.2013.05.003
• Nielsen CB, Ashraf RS, Rossbauer S, Anthopoulos T and McCulloch I (2013). Post-polymerization ketalization for improved organic photovoltaic materials. Macromolecules  vol. 46, (19) 7727-7732. 10.1021/ma401474a
• Nielsen CB, Sohn EH, Cho DJ, Schroeder BC, Smith J, Lee M, Anthopoulos TD, Song K and McCulloch I (2013). Erratum: Improved field-effect transistor performance of a benzotrithiophene polymer through ketal cleavage in the solid state (ACS Applied Materials and Interfaces (2013) 5:5 (1806-1810) DOI: 10.1021/am303138q). Acs Applied Materials and Interfaces  vol. 5, (7) 10.1021/am400946r
• Nielsen CB, Turbiez M and McCulloch I (2013). Recent advances in the development of semiconducting DPP-containing polymers for transistor applications. Advanced Materials  vol. 25, (13) 1859-1880. 10.1002/adma.201201795
• Bansal N, Reynolds LX, MacLachlan A, Lutz T, Ashraf RS, Zhang W, Nielsen CB, McCulloch I, Rebois DG, Kirchartz T, Hill MS, Molloy KC, Nelson J and Haque SA (2013). Influence of crystallinity and energetics on charge separation in polymer-inorganic nanocomposite films for solar cells. Sci Rep  vol. 3, 1531-1531. 10.1038/srep01531
• Nielsen CB, Sohn EH, Cho DJ, Schroeder BC, Smith J, Lee M, Anthopoulos TD, Song K and McCulloch I (2013). Improved field-effect transistor performance of a benzotrithiophene polymer through ketal cleavage in the solid state. Acs Applied Materials and Interfaces  vol. 5, (5) 1806-1810. 10.1021/am303138q
• Zhong H, Li Z, Deledalle F, Fregoso EC, Shahid M, Fei Z, Nielsen CB, Yaacobi-Gross N, Rossbauer S, Anthopoulos TD, Durrant JR and Heeney M (2013). Fused dithienogermolodithiophene low band gap polymers for high-performance organic solar cells without processing additives. Journal of The American Chemical Society  vol. 135, (6) 2040-2043. 10.1021/ja311700u
• Biniek L, Schroeder BC, Donaghey JE, Yaacobi-Gross N, Ashraf RS, Soon YW, Nielsen CB, Durrant JR, Anthopoulos TD and McCulloch I (2013). New fused bis-thienobenzothienothiophene copolymers and their use in organic solar cells and transistors. Macromolecules  vol. 46, (3) 727-735. 10.1021/ma302390z
• Bronstein H, Frost JM, Hadipour A, Kim Y, Nielsen CB, Ashraf RS, Rand BP, Watkins S and McCulloch I (2013). Effect of fluorination on the properties of a donor-acceptor copolymer for use in photovoltaic cells and transistors. Chemistry of Materials  vol. 25, (3) 277-285. 10.1021/cm301910t
• Nielsen CB, Voroshazi E, Holliday S, Cnops K, Rand BP and McCulloch I (2013). Efficient truxenone-based acceptors for organic photovoltaics. Journal of Materials Chemistry A  vol. 1, (1) 73-76. 10.1039/c2ta00548d
• Bakulin AA, Dimitrov SD, Rao A, Chow PCY, Nielsen CB, Schroeder BC, McCulloch I, Bakker HJ, Durrant JR and Friend RH (2013). Charge-transfer state dynamics following hole and electron transfer in organic photovoltaic devices. Journal of Physical Chemistry Letters  vol. 4, (1) 209-215. 10.1021/jz301883y
• Rumer JW, Hor CKL, Meager I, Yau CP, Huang Z, Nielsen CB, Watkins SE, Bronstein H and McCulloch I (2013). Alkyl side-chain branching point effects in thieno[3,4-c]pyrrole-4,6-dione copolymers. Journal of Organic Semiconductors  vol. 1, (1) 30-35. 10.1080/21606099.2013.829393

2012

• Dimitrov SD, Bakulin AA, Nielsen CB, Schroeder BC, Du J, Bronstein H, McCulloch I, Friend RH and Durrant JR (2012). On the energetic dependence of charge separation in low-band-gap polymer/fullerene blends. Journal of The American Chemical Society  vol. 134, (44) 18189-18192. 10.1021/ja308177d
• Biniek L, Schroeder BC, Nielsen CB and McCulloch I (2012). Recent advances in high mobility donor-acceptor semiconducting polymers. Journal of Materials Chemistry  vol. 22, (30) 14803-14813. 10.1039/c2jm31943h
• Schroeder BC, Shahid Ashraf R, Thomas S, White AJP, Biniek L, Nielsen CB, Zhang W, Huang Z, Shakya Tuladhar P, Watkins SE, Anthopoulos TD, Durrant JR and McCulloch I (2012). Synthesis of novel thieno[3,2-b]thienobis(silolothiophene) based low bandgap polymers for organic photovoltaics. Chemical Communications  vol. 48, (62) 7699-7701. 10.1039/c2cc33718e
• Nielsen CB, Ashraf RS, Schroeder BC, D’Angelo P, Watkins SE, Song K, Anthopoulos TD and McCulloch I (2012). Random benzotrithiophene-based donor-acceptor copolymers for efficient organic photovoltaic devices. Chemical Communications  vol. 48, (47) 5832-5834. 10.1039/c2cc31934a
• McCulloch I, Ashraf RS, Biniek L, Bronstein H, Combe C, Donaghey JE, James DI, Nielsen CB, Schroeder BC and Zhang W (2012). Design of semiconducting indacenodithiophene polymers for high performance transistors and solar cells. Accounts of Chemical Research  vol. 45, (5) 714-722. 10.1021/ar200208g
• Kirkpatrick J, Nielsen CB, Zhang W, Bronstein H, Ashraf RS, Heeney M and McCulloch I (2012). A systematic approach to the design optimization of light-absorbing indenofluorene polymers for organic photovoltaics. Advanced Energy Materials  vol. 2, (2) 260-265. 10.1002/aenm.201100622
• Dimitrov SD, Nielsen CB, Shoaee S, Shakya Tuladhar P, Du J, McCulloch I and Durrant JR (2012). Efficient charge photogeneration by the dissociation of PC 70BM excitons in polymer/fullerene solar cells. Journal of Physical Chemistry Letters  vol. 3, (1) 140-144. 10.1021/jz201484b

2011

• Donaghey JE, Ashraf RS, Kim Y, Huang ZG, Nielsen CB, Zhang W, Schroeder B, Grenier CRG, Brown CT, D'Angelo P, Smith J, Watkins S, Song K, Anthopoulos TD, Durrant JR, Williams CK and McCulloch I (2011). Pyrroloindacenodithiophene containing polymers for organic field effect transistors and organic photovoltaics. Journal of Materials Chemistry  vol. 21, (46) 18744-18752. 10.1039/c1jm13428k
• Nielsen CB, Schroeder BC, Hadipour A, Rand BP, Watkins SE and McCulloch I (2011). A benzotrithiophene-based low band gap polymer for polymer solar cells with high open-circuit voltage. Journal of Materials Chemistry  vol. 21, (44) 17642-17645. 10.1039/c1jm13393d
• Schroeder BC, Nielsen CB, Kim YJ, Smith J, Huang Z, Durrant J, Watkins SE, Song K, Anthopoulos TD and McCulloch I (2011). Benzotrithiophene Co-polymers with high charge carrier mobilities in field-effect transistors. Chemistry of Materials  vol. 23, (17) 4025-4031. 10.1021/cm2015884
• Nielsen CB, Fraser JM, Schroeder BC, Du J, White AJP, Zhang W and McCulloch I (2011). Benzotrithiophene - A planar, electron-rich building block for organic semiconductors. Organic Letters  vol. 13, (9) 2414-2417. 10.1021/ol200643z
• Mavrinskiy A, Nielsen CB, Reynolds JR, Müllen K and Pisula W (2011). Influence of the alkyl mantle on the self-assembly of phenylene-thienylene- based oligomers. Chemistry of Materials  vol. 23, (7) 1939-1945. 10.1021/cm1036716

2009

• Tuladhar SM, Sims M, Kirkpatrick J, Maher RC, Chatten AJ, Bradley DDC, Nelson J, Etchegoin PG, Nielsen CB, Massiot P, George WN and Steinke JHG (2009). Influence of alkyl chain length on charge transport in symmetrically substituted poly(2,5-dialkoxy-p-phenylenevinylene) polymers. Physical Review B - Condensed Matter and Materials Physics  vol. 79, (3) 10.1103/PhysRevB.79.035201
• Tuladhar SM, Sims M, Choulis SA, Nielsen CB, George WN, Steinke JHG, Bradley DDC and Nelson J (2009). Influence of side chain symmetry on the performance of poly(2,5-dialkoxy-p-phenylenevinylene): fullerene blend solar cells. Organic Electronics  vol. 10, (4) 562-567. 10.1016/j.orgel.2009.02.008

2008

• Nielsen CB, Angerhofer A, Abboud KA and Reynolds JR (2008). Discrete photopatternable π-conjugated oligomers for electrochromic devices. Journal of The American Chemical Society  vol. 130, (30) 9734-9746. 10.1021/ja7112273

2007

• Sims M, Tuladhar SM, Nelson J, Maher RC, Campoy-Quiles M, Choulis SA, Mairy M, Bradley DDC, Etchegoin PG, Tregidgo C, Suhling K, Richards DR, Massiot P, Nielsen CB and Steinke JHG (2007). Correlation between microstructure and charge transport in poly(2,5-dimethoxy- p -phenylenevinylene) thin films. Physical Review B - Condensed Matter and Materials Physics  vol. 76, (19) 10.1103/PhysRevB.76.195206

2005

• Nielsen CB and Bjørnholm T (2005). Structure-property relations of regiosymmetrical 3,4-dioxy-functionalized polythiophenes. Macromolecules  vol. 38, (25) 10379-10387. 10.1021/ma051609t

2004

• Nielsen CB and Bjørnholm T (2004). New regiosymmetrical dioxopyrrolo- and dihydropyrrolo-functionalized polythiophenes. Organic Letters  vol. 6, (19) 3381-3384. 10.1021/ol048659n
• Laursen BW, Nørgaard K, Reitzel N, Simonsen JB, Nielsen CB, Als-Nielsen J, Bjørnholm T, Sølling TI, Nielsen MM, Bunk O, Kjaer K, Tchebotareva N, Watson MD, Müllen K and Piris J (2004). Macroscopic alignment of graphene stacks by langmuir-blodgett deposition of amphiphilic hexabenzocoronenes. Langmuir  vol. 20, (10) 4139-4146. 10.1021/la049944i

Grants

Grants of specific relevance to Materials Research

Additive-Stabilized Polymer Electronics Manufacturing (ASPEM)
Nielsen CB
£211,376 Engineering and Physical Sciences Research Council (30-06-2018 - 29-06-2021)

Summary

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)

Summary

Centre for Advanced Materials for Integrated Energy Systems (CAM-IES)
Nielsen CB
Engineering and Physical Sciences Research Council (01-12-2016 - 30-11-2020)

Organic Bioelectronic Sensors for Epilepsy Diagnosis
Nielsen CB
£99,924 Academy of Medical Sciences (01-09-2017 - 31-08-2019)

A New Materials Platform for Organic Bioelectronic Sensors
Nielsen CB
Royal Society (15-08-2017 - 14-08-2018)

Institutional Sponsorship 2016- Queen Mary, University of London
Nielsen CB
£11,000 Engineering and Physical Sciences Research Council (01-09-2016 - 31-03-2017)