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Frontispiece: Structure–Property Relationship Study of Donor and Acceptor 2,6‐Disubstituted BODIPY Derivatives for High Performance Dye‐Sensitized Solar Cells
Author(s) -
Yeh ShihChieh,
Wang LiJing,
Yang HongMing,
Dai YuHuei,
Lin ChaoWen,
Chen ChinTi,
Jeng RuJong
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201785964
Subject(s) - bodipy , dye sensitized solar cell , acceptor , photochemistry , substituent , excited state , chemistry , photosensitizer , energy conversion efficiency , materials science , fluorescence , stereochemistry , optoelectronics , electrode , electrolyte , optics , physics , condensed matter physics , nuclear physics
BODIPY dyes as photosensitizers The electronic local excited (LE) state of prominent BODIPY dyes limits the efficiency in their application for dye sensitized solar cells (DSCs). To overcome such issues, C.‐T. Chen, R.‐J. Jeng et al. on page 14747 ff., present an insightful study about the structure‐property relationship of a series of donor and acceptor 2,6‐disubstituted BODIPY dyes; having a structural variation on donor, donor π‐spacer, substituent on boron, acceptor π‐spacer, and acceptor. A combination of spectroscopic experiment and theoretical calculation has demonstrated that the LE characteristics of the BODIPY dyes has been largely transformed to charge transfer (CT), which is a more favorable electronic feature of a photosensitizer used in DSCs. DSCs fabricated with MPBTTCA (shown in the picture) exhibit power conversion efficiency as high as 6.4%, one of the highest among DSCs having similar BODIPY dyes.