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Molecular Design Rule of Phthalocyanine Dyes for Highly Efficient Near‐IR Performance in Dye‐Sensitized Solar Cells
Author(s) -
Kimura Mutsumi,
Nomoto Hirotaka,
Suzuki Hiroyuki,
Ikeuchi Takuro,
Matsuzaki Hiroyuki,
Murakami Takuro N.,
Furube Akihiko,
Masaki Naruhiko,
Griffith Matthew J.,
Mori Shogo
Publication year - 2013
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201300716
Subject(s) - phthalocyanine , zinc , dye sensitized solar cell , photochemistry , nanocrystalline material , adsorption , materials science , energy conversion efficiency , solar cell , picosecond , fluorescence , spectroscopy , chemistry , electrode , optoelectronics , nanotechnology , organic chemistry , optics , laser , physics , quantum mechanics , electrolyte , metallurgy
A series of zinc–phthalocyanine sensitizers ( PcS16 – 18 ) with different adsorption sites have been designed and synthesized in order to investigate the dependence of adsorption‐site structures on the solar‐cell performances in zinc–phthalocyanine based dye‐sensitized solar cells. The change of adsorption site affected the electron injection efficiency from the photoexcited dye into the nanocrystalline TiO 2 semiconductor, as monitored by picosecond time‐resolved fluorescence spectroscopy. The zinc–phthalocyanine sensitizer PcS18 , possessing one carboxylic acid directly attached to the ZnPc ring and six 2,6‐diisopropylphenoxy units, showed a record power conversion efficiency value of 5.9 % when used as a light‐harvesting dye on a TiO 2 electrode under one simulated solar condition.