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Linking Structure and Function in Organic Energy Materials, Dr John Griffin, Lancaster University

Image: Dr John Griffin
Dr John Griffin

Date: 23 October 2019   Time: 15:00 - 16:00

John's research interests concern the study of structure and mechanisms in materials - in particular those with energy storage or conversion applications. One of the key tools used for this is solid-state nuclear magnetic resonance (NMR) spectroscopy, a powerful analytical technique that can provide detailed information about atomic-scale structure, disorder and dynamics.

Abstract:
Organic materials offer many promising properties for next-generation technologies. Organic semiconductors are already used in many devices and have the advantages of being lightweight, flexible and more sustainable than their inorganic counterparts. Another emerging class of materials is so-called solar thermal fuels (STFs) which offer a new way to store and convert solar energy in a single material. Key to the continued development of both of these systems is a detailed understanding of the link between the molecular-level structure and the bulk material properties.

In this talk I will show how solid-state NMR provides a unique and detailed insight into organic semiconductors and STFs. By combination of advanced one- and two-dimensional experiments with information from DFT calculations, it is possible to piece together the molecular-level structure in a way that is very difficult by other techniques. This information then helps to understand how the materials function and what features can be tailored to optimise the material properties.

Location:  PP1 Lecture Theatre, People's Palace, Mile End Campus