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Incorporating Multiple Energy Relay Dyes in Liquid Dye‐Sensitized Solar Cells
Author(s) -
Yum JunHo,
Hardin Brian E.,
Hoke Eric T.,
Baranoff Etienne,
Zakeeruddin Shaik M.,
Nazeeruddin Mohammad K.,
Torres Tomas,
McGehee Michael D.,
Grätzel Michael
Publication year - 2011
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.201000854
Subject(s) - förster resonance energy transfer , dye sensitized solar cell , photochemistry , absorption (acoustics) , phthalocyanine , relay , optoelectronics , solar energy , energy transfer , excitation , absorption spectroscopy , chemistry , fluorescence , materials science , photovoltaic system , energy conversion efficiency , optics , nanotechnology , electrode , chemical physics , physics , electrolyte , ecology , power (physics) , quantum mechanics , composite material , biology
Panchromatic response is essential to increase the light‐harvesting efficiency in solar conversion systems. Herein we show increased light harvesting from using multiple energy relay dyes inside dye‐sensitized solar cells. Additional photoresponse from 400–590 nm matching the optical window of the zinc phthalocyanine sensitizer was observed due to Förster resonance energy transfer (FRET) from the two energy relay dyes to the sensitizing dye. The complementary absorption spectra of the energy relay dyes and high excitation transfer efficiencies result in a 35 % increase in photovoltaic performance.