Imperial College London
Alternate

Emeritus ProfessorAndrewHolmes

Faculty of Natural Sciences, Department of Chemistry

Distinguished Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 9286andrew.holmes Website

 
 
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Assistant

 

Ms Maria Tortelli +44 (0)20 7594 9286

 
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Location

 

Molecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Sun:2015:10.1038/ncomms7013,
author = {Sun, K and Xiao, Z and Lu, S and Zajaczkowski, W and Pisula, W and Hanssen, E and White, JM and Williamson, RM and Subbiah, J and Ouyang, J and Holmes, AB and Wong, WWH and Jones, DJ},
doi = {10.1038/ncomms7013},
journal = {Nature Communications},
title = {A molecular nematic liquid crystalline material for high-performance organic photovoltaics},
url = {http://dx.doi.org/10.1038/ncomms7013},
volume = {6},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Solution-processed organic photovoltaic cells (OPVs) hold great promise to enable roll-to-roll printing of environmentally friendly, mechanically flexible and cost-effective photovoltaic devices. Nevertheless, many high-performing systems show best power conversion efficiencies (PCEs) with a thin active layer (thickness is ∼100 nm) that is difficult to translate to roll-to-roll processing with high reproducibility. Here we report a new molecular donor, benzodithiophene terthiophene rhodanine (BTR), which exhibits good processability, nematic liquid crystalline behaviour and excellent optoelectronic properties. A maximum PCE of 9.3% is achieved under AM 1.5G solar irradiation, with fill factor reaching 77%, rarely achieved in solution-processed OPVs. Particularly promising is the fact that BTR-based devices with active layer thicknesses up to 400nm can still afford high fill factor of ∼70% and high PCE of ∼8%. Together, the results suggest, with better device architectures for longer device lifetime, BTR is an ideal candidate for mass production of OPVs.
AU  - Sun,K
AU  - Xiao,Z
AU  - Lu,S
AU  - Zajaczkowski,W
AU  - Pisula,W
AU  - Hanssen,E
AU  - White,JM
AU  - Williamson,RM
AU  - Subbiah,J
AU  - Ouyang,J
AU  - Holmes,AB
AU  - Wong,WWH
AU  - Jones,DJ
DO  - 10.1038/ncomms7013
PY  - 2015///
TI  - A molecular nematic liquid crystalline material for high-performance organic photovoltaics
T2  - Nature Communications
UR  - http://dx.doi.org/10.1038/ncomms7013
VL  - 6
ER  -
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