Cyclic Thiourea/Urea Functionalized Triphenylamine-Based Dyes for High-Performance Dye-Sensitized Solar Cells

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• 作者：Zhisheng Wu ; Zhongwei An ; Xinbing Chen ; Pei Chen
• 刊名：Organic Letters
• 出版年：2013
• 出版时间：April 5, 2013
• 年：2013
• 卷：15
• 期：7
• 页码：1456-1459
• 全文大小：244K
• 年卷期：v.15,no.7(April 5, 2013)
• ISSN：1523-7052

文摘

Six cyclic thiourea/urea functionalized triphenylamine-based dyes (AZ1鈥?b>AZ6) containing 2-cyanoacrylic acid as an acceptor and various linkers (phenyl, biphenyl, and bithiophene) were synthesized. They exhibited high photovoltaic performance owing to an improved short-circuit photocurrent density (J_sc) and open-circuit voltage (V_oc). Among them, AZ6 bearing a cyclic thiourea group and bithiophene linker showed the highest power conversion efficiency (PCE) up to 7.29%, which was comparable to that of N719 (PCE = 7.36%).