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First‐Generation Subporphyrinatoboron(III) Sensitizers Surpass the 10 % Power Conversion Efficiency Threshold
Author(s) -
Copley Graeme,
Hwang Daesub,
Kim Dongho,
Osuka Atsuhiro
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201604432
Subject(s) - dye sensitized solar cell , energy conversion efficiency , open circuit voltage , steric effects , short circuit , voltage , chemistry , current density , photochemistry , optoelectronics , materials science , nanotechnology , stereochemistry , electrical engineering , physics , electrode , engineering , quantum mechanics , electrolyte
Subporphyrinatoboron(III) (SubB) sensitizers were synthesized for use in dye‐sensitized solar cells (DSSCs). The prototype, which comprises a sterically demanding 3,5‐di‐ tert ‐butylphenyl scaffold, a meso‐ethynylphenyl spacer, and a cyanoacrylic acid anchoring group, achieved an open‐circuit voltage V OC of 836 mV, short‐circuit current density J SC of 15.3 mA cm −2 , fill factor of 0.786, and a photon‐to‐current conversion efficiency of 10.1 %. Such astonishing figures suggest that a bright future lies ahead for SubB in the realm of DSSCs.
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