New Pyridinium Ylide Dyes for Dye Sensitized Solar Cell Applications

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• 作者：Ting-Yu Li ; Chaochin Su ; Suri Babu Akula ; Wei-Gang Sun ; Hung-Ming Chien ; Wen-Ren Li
• 刊名：Organic Letters
• 出版年：2016
• 出版时间：July 15, 2016
• 年：2016
• 卷：18
• 期：14
• 页码：3386-3389
• 全文大小：321K
• 年卷期：0
• ISSN：1523-7052

文摘

Novel organic pyridinium ylide sensitizers (NO109–111) consisting of various anchoring groups were synthesized and characterized for applications in dye sensitized solar cells. Compared with the pyridine-N-oxide dye (NO108), the ylide sensitizers with strong electron-withdrawing acceptors exhibited dominant ultraviolet absorption properties and efficient binding abilities to the TiO₂ surface. Among these dyes, the pyridinium ylide NO111 sensitized solar cell showed the highest efficiency (5.15%), which was improved to 7.41% by employing coadsorbent chenodeoxycholic acid.