Dye-Sensitized Solar Cells Based on Donor-π-Acceptor Fluorescent Dyes with a Pyridine Ring as an Electron-Withdrawing-Injecting Anchoring Group
作者:Yousuke Ooyama、Tomoya Nagano、Shogo Inoue、Ichiro Imae、Kenji Komaguchi、Joji Ohshita、Yutaka Harima
DOI:10.1002/chem.201101923
日期:2011.12.23
A new‐type of donor–acceptor π‐conjugated (D‐π‐A) fluorescent dyes NI3–NI8 with a pyridine ring as electron‐withdrawing‐injecting anchoring group have been developed and their photovoltaic performances in dye‐sensitized solar cells (DSSCs) are investigated. The short‐circuit photocurrent densities and solar energy‐to‐electricity conversion yields of DSSCs based on NI3–NI8 are greater than those for
已经开发了一种新型的具有吡啶环作为吸电子注入锚定基团的供体-受体π共轭(D-π-A)荧光染料NI3 - NI8,并且它们在染料敏化太阳能电池(DSSC)中具有光伏性能)进行调查。的短路光电流密度和基于DSSC中的太阳能到电能的转化率NI3 - NI8比用于传统d-π-A染料敏化更大的NI1和NI2与羧基基团作为吸电子锚定基团。TiO 2上吸附的NI3 – NI8的红外光谱表示在染料NI3 - NI8的吡啶环与TiO 2表面的路易斯酸位点(暴露的Ti n +阳离子)之间形成了配位键。这项工作表明,与TiO 2表面的路易斯酸位点形成配位键的D-π-A染料敏化剂的吡啶环是有前途的候选物,因为它不仅是吸电子锚定基团,而且是电子注入基团,而不是吸电子锚定基团。常规D-π-A染料敏化剂的羧基与TiO 2表面的布朗斯台德酸位形成酯键。