Prof. Martin Heeney Speaks at TOSCA/ORaCEL joint meeting on 3/16/2021

Material Development for OPV Blends

[ezcol_1half]Prof. Martin J. Heeney
Dept. of Chemistry,
Imperial College London
Email: m.heeney@imperial.ac.uk
Group Website
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Date: Tuesday, March 16, 2021
Time: 9:00 AM (EST).[/ezcol_1half_end]
Zoom meeting link: : https://ncsu.zoom.us/j/92800996686

Abstract

I will discuss our recent work to develop active materials and dopants for organic photovoltaic blends. In the initial part of the talk, I will focus on our recent efforts to develop flexible synthetic routes to a range of ladder-type monomers which allow the ready manipulation of the solubilizing sidechains, as well as the aromatic heterocycle in the fused unit. We show that the nature of the sidechain is important for both donor polymers and non-fullerene acceptors. Changing from commonly used arylalkyl to simple alkyl sidechains is shown to have a positive impact on the performance of materials in single junction solar cells. We also demonstrate that the nature of the fused heterocycle has an important impact on the optoelectronic properties and device properties, highlighting that fused electron rich heterocycles are attractive building blocks for both donor and acceptor materials. I will also discuss the role of backbone fluorination in the performance of donor polymers. Finally I will highlight our recent efforts to develop n-type dopants and their application in transistor and solar cell devices.

Biosketch:

Martin Heeney is a Professor of Organic Materials Chemistry and Royal Society Wolfson Fellow at Imperial College London. He is a graduate of the University of East Anglia and received his PhD from the same institution in 1999 under the supervision of Prof. Michael Cook. Following eight years in industry, he joined the Materials Department at Queen Mary University of London as a senior lecturer in 2007 before moving to Imperial in 2009. His research interests include the design, synthesis and characterization of solution processed materials for a variety of applications. He has published over 300 research papers, 5 book chapters and over 100 patents. He has been named five times by Thomson Reuters as a Highly Cited researcher in the field of Materials Science, is a recipient of the RSC Corday-Morgan (2013) medal, the RSC Peter Day (2020) award and the Macro group UK medal (2020).