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Double Fence Porphyrins that are Compatible with Cobalt(II/III) Electrolyte for High‐Efficiency Dye‐Sensitized Solar Cells
Author(s) -
Chen ChingChin,
Chen JiaSian,
Nguyen Vinh Son,
Wei TzuChien,
Yeh ChenYu
Publication year - 2021
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.202013964
Subject(s) - porphyrin , dye sensitized solar cell , fence (mathematics) , energy conversion efficiency , electrolyte , chemistry , alkoxy group , cobalt , materials science , photochemistry , photovoltaic system , inorganic chemistry , electrode , optoelectronics , organic chemistry , alkyl , mathematics , combinatorics , ecology , biology
A series of new double fence porphyrin dyes bJS1 – bJS3 , with eight long alkoxyl chains attached to four β‐phenyl groups, have been designed and synthesized. The single fence meso ‐substituted counterparts mJS1 – mJS3 were also prepared as reference dyes. Dyes bJS1 – bJS3 and mJS1 – mJS3 exhibit power conversion efficiencies of 8.03–10.69 % and 2.33–6.69 %, respectively. Based on photovoltaic studies, the remarkable cell performance of double fence porphyrin sensitizers can be attributed to reduced dye aggregation and a decreased charge‐recombination rate. Notably, porphyrins bJS2 and bJS3 exhibit better efficiency than the benchmark YD2‐ o ‐C8 (9.83 % in this work), demonstrating that the double fence structure is a promising design strategy for efficient porphyrin sensitizers in high‐performance DSSCs.