作者:Sanghoon Kim、Jae Kwan Lee、Sang Ook Kang、Jaejung Ko、J.-H. Yum、Simona Fantacci、Filippo De Angelis、D. Di Censo、Md. K. Nazeeruddin、Michael Grätzel
DOI:10.1021/ja066376f
日期:2006.12.1
Novel organic sensitizers comprising donor, electron-conducting, and anchoring groups were engineered at molecular level and synthesized. The functionalized unsymmetrical organic sensitizers 3-5-[N,N-bis(9,9-dimethylfluorene-2-yl)phenyl]-thiophene-2-yl}-2-cyano-acrylic acid (JK-1) and 3-5'-[N,N-bis(9,9-dimethylfluorene-2-yl)phenyl]-2,2'-bisthiophene-5-yl}-2-cyano-acrylic acid (JK-2), upon anchoring
在分子水平上设计并合成了包含供体、电子传导和锚定基团的新型有机敏化剂。功能化的不对称有机敏化剂 3-5-[N,N-bis(9,9-dimethylfluorene-2-yl)phenyl]-thiophene-2-yl}-2-cyano-acrylic acid (JK-1) 和 3 -5'-[N,N-双(9,9-二甲基芴-2-基)苯基]-2,2'-双噻吩-5-基}-2-氰基-丙烯酸(JK-2),在锚定在 TiO2 薄膜上,表现出前所未有的入射光子电流转换效率为 91%。使用含有 0.6 M-甲基-N-丁基咪唑鎓碘化物、0.04 M 碘、0.025 M LiI、0.05 M 硫氰酸胍和 0.28 M 叔丁基吡啶的 15/85 (v/v) 电解液的光伏数据戊腈和乙腈的混合物显示短路光电流密度为 14.0 +/- 0.2 mA/cm2,753 +/- 10 mV 的开路电压和 0.76 +/-