Incorporating Multiple Energy Relay Dyes in Liquid Dye-Sensitized Solar Cells

Jun-Ho Yum, Brian E. Hardin, Eric T. Hoke, Etienne Baranoff, Shaik M. Zakeeruddin, Mohammad K. Nazeeruddin, Tomas Torres, Michael D. McGehee, Michael Grätzel

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

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. © 2011 Wiley-VCH Verlag GmbH& Co. KGaA.
Original languageEnglish (US)
Pages (from-to)657-661
Number of pages5
JournalChemPhysChem
Volume12
Issue number3
DOIs
StatePublished - Jan 5 2011
Externally publishedYes

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