Organic letters

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

JY Li, CY Chen, WC Ho, SH Chen, CG Wu

Index: Li, Jheng-Ying; Chen, Chia-Yuan; Ho, Wen-Chein; Chen, Szu-Han; Wu, Chun-Guey Organic Letters, 2012 , vol. 14, # 21 p. 5420 - 5423

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Citation Number: 26

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 λmax of 686 and 673 nm, respectively. The corresponding photovoltaic devices exhibit an ...