Unsymmetrical Squaraines Incorporating Quinoline for Near Infrared Responsive Dye-Sensitized Solar Cells

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• 作者：Jheng-Ying Li ; Chia-Yuan Chen ; Wen-Chein Ho ; Szu-Han Chen ; Chun-Guey Wu
• 刊名：Organic Letters
• 出版年：2012
• 出版时间：November 2, 2012
• 年：2012
• 卷：14
• 期：21
• 页码：5420-5423
• 全文大小：263K
• 年卷期：v.14,no.21(November 2, 2012)
• ISSN：1523-7052

文摘

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 位_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.