Employing PCBTDPP as an efficient donor polymer for high performance ternary polymer solar cells

Xu, B., Saianand, G., Roy, V.A.L. , Qiao, Q., Reza, K. M. and Kang, S.-W. (2019) Employing PCBTDPP as an efficient donor polymer for high performance ternary polymer solar cells. Polymers, 11(9), 1423. (doi: 10.3390/polym11091423) (PMID:31470690) (PMCID:PMC6780059)

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A compatible low-bandgap donor polymer (poly[N-90-heptadecanyl-2,7carbazole-alt-3,6-bis(thiophen-5-yl)-2,5-dioctyl-2,5-dihydropyrrolo[3,4]pyrrole-1,4-dione], PCBTDPP) was judicially introduced into the archetypal poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PC61BM) photoactive system to fabricate highly efficient ternary based bulk heterojunction polymer solar cells (PSCs). The PCBTDPP ternary-based PSC with optimal loading (0.2 wt.%) displayed outstanding performance with a champion power conversion efficiency (PCE) of 5.28% as compared to the PCE (4.67%) for P3HT:PC61BM-based PSC (reference). The improved PCE for PCBTDPP ternary-based PSC can be mainly attributed to the incorporation of PCBTDPP into P3HT:PC61BM that beneficially improved the optical, morphological, electronic, and photovoltaic (PV) performance. This work instills a rational strategy for identifying components (donor/acceptor (D/A) molecules) with complementary beneficial properties toward fabricating efficient ternary PSCs.

Item Type:Articles
Additional Information:Funding: This work was supported in part by National Research Foundation of Korea (NRF) grant funded by the Korea Government (MSIP) (No. NRF 2017R1D1A3B03032042); by the BK21 Plus project funded by the Ministry of Education, Korea (21A20131600011) and by the China Scholarship Council (CSC, No. 201708260004).
Glasgow Author(s) Enlighten ID:Vellaisamy, Professor Roy
Authors: Xu, B., Saianand, G., Roy, V.A.L., Qiao, Q., Reza, K. M., and Kang, S.-W.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Polymers
ISSN (Online):2073-4360
Copyright Holders:Copyright © 2019 by the authors
First Published:First published in Polymers 11(9):1423
Publisher Policy:Reproduced under a Creative Commons Licence
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