Unsymmetrical squaraines incorporating quinoline for near infrared responsive dye-sensitized solar cells

Jheng Ying Li, Chia Yuan Chen, Wen Chein Ho, Szu Han Chen, Chun Guey Wu

Research output: Contribution to journalArticlepeer-review

53 Scopus citations

Abstract

Two new unsymmetrical squaraines (WCH-SQ10 and WCH-SQ11), wherein the electron-rich 3,4-ethylenedioxy-thiophene conjugated fragment was linked unconventionally to the squaraine core and triphenyl amine donor, and carboxylic acid substituted quinoline was used as an acceptor, were prepared. WCH-SQ10 and WCH-SQ11 dyes in ethanol have the λ max of 686 and 673 nm, respectively. The corresponding photovoltaic devices exhibit an attractively panchromatic response over 1000 nm, suggesting that quinoline benefits the low energetic electron injection.

Original languageEnglish
Pages (from-to)5420-5423
Number of pages4
JournalOrganic Letters
Volume14
Issue number21
DOIs
StatePublished - 2 Nov 2012

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