TY - JOUR
T1 - Multichromophore Donor Materials Derived from Diketopyrrolopyrrole and Phenoxazine
T2 - Design, Synthesis, and Photovoltaic Performance
AU - Narayanaswamy, Kamatham
AU - Yadagiri, Bommaramoni
AU - Bagui, Anirban
AU - Gupta, Vinay
AU - Singh, Surya Prakash
N1 - Funding Information:
We gratefully acknowledge DST-UK (APEX-Phase-II) for financial support. K. N. and B. Y. would like to thank the University Grants Commission (UGC), Government of India, for providing junior and senior research fellowships. A. B. is thankful to the Department of Science & Technology, Government of India for his National Postdoctoral Fellowship (PDF/2016/001853).
Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2017/9/8
Y1 - 2017/9/8
N2 - Herein two conjugated donor molecules, TDPP-POCN and FDPP-POCN, with planar diketopyrrolopyrrole (DPP) as the core building-block acceptor unit and phenoxazine-capped acrylonitriles as arms are designed and synthesized. Solution-processed bulk-heterojunction organic solar cells based on blends of the small-molecule donors and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) exhibit promising photovoltaic device performance with a maximum power conversion efficiency up to 4.8 % for TDPP-POCN and 3.4 % for FDPP-POCN under the illumination of AM1.5G, 100 mW cm–2. To the best of our knowledge, this is the highest efficiency reported so far in DPP–phenoxazine-based systems and among acrylonitrile-bridged donor-π-acceptor-π-donor-structured small-molecule donors for solution-processed small-molecule-based organic solar cells.
AB - Herein two conjugated donor molecules, TDPP-POCN and FDPP-POCN, with planar diketopyrrolopyrrole (DPP) as the core building-block acceptor unit and phenoxazine-capped acrylonitriles as arms are designed and synthesized. Solution-processed bulk-heterojunction organic solar cells based on blends of the small-molecule donors and [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) exhibit promising photovoltaic device performance with a maximum power conversion efficiency up to 4.8 % for TDPP-POCN and 3.4 % for FDPP-POCN under the illumination of AM1.5G, 100 mW cm–2. To the best of our knowledge, this is the highest efficiency reported so far in DPP–phenoxazine-based systems and among acrylonitrile-bridged donor-π-acceptor-π-donor-structured small-molecule donors for solution-processed small-molecule-based organic solar cells.
KW - Chromophores
KW - Donor–acceptor systems
KW - Nitrogen heterocycles
KW - Photovoltaics
KW - Solar cells
UR - http://www.scopus.com/inward/record.url?scp=85028990403&partnerID=8YFLogxK
U2 - 10.1002/ejoc.201700845
DO - 10.1002/ejoc.201700845
M3 - Article
AN - SCOPUS:85028990403
SN - 1434-193X
VL - 2017
SP - 4896
EP - 4904
JO - European Journal of Organic Chemistry
JF - European Journal of Organic Chemistry
IS - 33
ER -
