Solution-processed boron subphthalocyanine derivatives as acceptors for organic bulk-heterojunction solar cells

Ebenhoch, B., Prasetya, N. B.A., Rotello, V. M., Cooke, G. and Samuel, I. D.W. (2015) Solution-processed boron subphthalocyanine derivatives as acceptors for organic bulk-heterojunction solar cells. Journal of Materials Chemistry A, 3(14), pp. 7345-7352. (doi:10.1039/C5TA00715A)

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Publisher's URL: http://dx.doi.org/10.1039/C5TA00715A

Abstract

We report the fabrication of solution-processed bulk heterojunction devices from subphthalocyanine (SubPc) units as the acceptor component and conventional polymeric donor materials such as MEH-PPV, P3HT and PTB7. The high solubility of the SubPc derivatives facilitated the formation of efficient donor/acceptor networks and provided power conversion efficiencies of 0.4% with MEH-PPV, 1.1% with P3HT and 3.5% with PTB7. A clear contribution of photon harvesting by the acceptor was identified from the external quantum efficiency spectra. Analysis of the current–voltage characteristics and photoluminescence quenching revealed trap-assisted and geminate recombination as a loss mechanism. Our results show that solution-processable SubPcs are a promising alternative to fullerenes for polymer solar cells.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cooke, Professor Graeme
Authors: Ebenhoch, B., Prasetya, N. B.A., Rotello, V. M., Cooke, G., and Samuel, I. D.W.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of Materials Chemistry A
Publisher:Royal Society of Chemistry
ISSN:2050-7488
ISSN (Online):2050-7496
Copyright Holders:Copyright © 2015 The Royal Society of Chemistry
First Published:First published in Journal of Materials Chemistry A 3(14):7345-7352
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
540171Synergistic Tailoring of Flavins and Quantum Dots for Solar Cell applicationsGraeme CookeEngineering & Physical Sciences Research Council (EPSRC)EP/I00243X/1CHEM - CHEMISTRY