TY - JOUR
T1 - Novel Dimethylmethylene-Bridged Triphenylamine-PDI Acceptor for Bulk-Heterojunction Organic Solar Cells
AU - Xiong, Yu
AU - Wu, Bo
AU - Zheng, Xiaoyan
AU - Zhao, Zheng
AU - Deng, Ping
AU - Lin, Ming
AU - Tang, Benzhong
AU - Ong, Beng S.
N1 - Funding Information:
Dr. Y. Xiong, Dr. B. Wu, Dr. P. Deng, Prof. B. S. Ong Research Centre of Excellence for Organic Electronics Institute of Creativity and Department of Chemistry Hong Kong Baptist University Hong Kong E-mail: [email protected] Dr. Y. Xiong, Dr. Z. Zhao, Prof. B. Tang HKUST Shenzhen Research Institute No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen 518057, P. R. China Dr. X. Zheng, Dr. Z. Zhao, Prof. B. Tang Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay, Hong Kong Dr. M. Lin Agency for Science, Technology and Research Institute of Materials Research and Engineering 2 Fusionopolis Way, 138634, Singapore © 2017 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Funding Information:
This work was financially supported by a Strategic Development Fund (SDF13-0531-A02) of HK Baptist University, a Collaborative Research Fund (C5015-15GF) from HK Research Grants Council, Hung Hin Shiu Charitable Foundation, and Shenzhen Science and Technology Innovation Grant (KQTD20140630110339343), Shenzhen Science and Technology Program (JCYJ20160509170535223), China Postdoctoral Science Foundation Grant (2016M600680).
PY - 2017/10
Y1 - 2017/10
N2 - A novel, star-shaped electron acceptor, DMTPA-PDI3, derived from a planar dimethylmethylene-bridged triphenylamine core with three acetylene-linked perylene diimide (PDI) units is developed as a nonfullerene acceptor for organic solar cells (OSCs). DMTPA-PDI3 manifests significantly reduced intramolecular twisting, enabling sufficient system-wide π-electron delocalization leading to broadened spectral absorption and raised lowest unoccupied molecular orbital level. As a result, higher and more balanced hole and electron transport properties are observed. Active layers for OSCs comprising DMTPA-PDI3 acceptor and PBT7-Th donor exhibit suppressed intermolecular aggregation, giving rise to uniform nanophase network formation. These OSC devices have afforded respectably high power-conversion efficiency of about 5%.
AB - A novel, star-shaped electron acceptor, DMTPA-PDI3, derived from a planar dimethylmethylene-bridged triphenylamine core with three acetylene-linked perylene diimide (PDI) units is developed as a nonfullerene acceptor for organic solar cells (OSCs). DMTPA-PDI3 manifests significantly reduced intramolecular twisting, enabling sufficient system-wide π-electron delocalization leading to broadened spectral absorption and raised lowest unoccupied molecular orbital level. As a result, higher and more balanced hole and electron transport properties are observed. Active layers for OSCs comprising DMTPA-PDI3 acceptor and PBT7-Th donor exhibit suppressed intermolecular aggregation, giving rise to uniform nanophase network formation. These OSC devices have afforded respectably high power-conversion efficiency of about 5%.
KW - nonfullerene acceptors
KW - organic solar cells
KW - perylene diimide
KW - triphenylamine
UR - http://www.scopus.com/inward/record.url?scp=85021253260&partnerID=8YFLogxK
U2 - 10.1002/advs.201700110
DO - 10.1002/advs.201700110
M3 - Journal article
AN - SCOPUS:85021253260
SN - 2198-3844
VL - 4
JO - Advanced Science
JF - Advanced Science
IS - 10
M1 - 1700110
ER -
