Three donor-(π-spacer)-acceptor(D-π-A) organic dyes,containing different groups(triphenylamine,di(p-tolyl)phenylamine,and 9-octylcarbazole moieties) as electron donors,were designed and synthesized.Nanocrystalline T...Three donor-(π-spacer)-acceptor(D-π-A) organic dyes,containing different groups(triphenylamine,di(p-tolyl)phenylamine,and 9-octylcarbazole moieties) as electron donors,were designed and synthesized.Nanocrystalline TiO2 dye-sensitized solar cells were fabricated by using these dyes.It was found that the variation of electron donors in the D-π-A dyes played an important role in modifying and tuning photophysical properties of organic dyes.Under standard global AM 1.5 solar condition,the DSSC based on the dye D2 showed the best photovoltaic performance:a short-circuit photocurrent density(Jsc) of 13.93 mA/cm2,an open-circuit photovoltage(Voc) of 0.71 V,and a fill factor(FF) of 0.679,corresponding to solar-to-electric power conversion efficiency(η) of 6.72%.展开更多
染料敏化太阳能电池(Dye-sensitized Solar Cells,DSSCs)因其具有制备简单、成本较低、光电转化效率较高等优势而受广泛关注。介绍了染料敏化太阳能电池的组成结构和基本原理,详细地论述了DSSCs各个组件的优化措施,包括光阳极结构的优...染料敏化太阳能电池(Dye-sensitized Solar Cells,DSSCs)因其具有制备简单、成本较低、光电转化效率较高等优势而受广泛关注。介绍了染料敏化太阳能电池的组成结构和基本原理,详细地论述了DSSCs各个组件的优化措施,包括光阳极结构的优化、染料敏化剂的性能、电解质的特性以及对电极材料的发展,并对其中出现的一些问题进行阐述以及对未来的发展方向和前景进行展望。展开更多
基金Supported by the Key Project of Hunan Province of China (Grant No. 2008FJ2004)Natural Science Foundation of Hunan Province of China (Grant Nos. 09JJ3020 & 09JJ4005)Scientific Research Fund of Hunan Provincial Education Department (Grant No. 08C888)
文摘Three donor-(π-spacer)-acceptor(D-π-A) organic dyes,containing different groups(triphenylamine,di(p-tolyl)phenylamine,and 9-octylcarbazole moieties) as electron donors,were designed and synthesized.Nanocrystalline TiO2 dye-sensitized solar cells were fabricated by using these dyes.It was found that the variation of electron donors in the D-π-A dyes played an important role in modifying and tuning photophysical properties of organic dyes.Under standard global AM 1.5 solar condition,the DSSC based on the dye D2 showed the best photovoltaic performance:a short-circuit photocurrent density(Jsc) of 13.93 mA/cm2,an open-circuit photovoltage(Voc) of 0.71 V,and a fill factor(FF) of 0.679,corresponding to solar-to-electric power conversion efficiency(η) of 6.72%.
文摘染料敏化太阳能电池(Dye-sensitized Solar Cells,DSSCs)因其具有制备简单、成本较低、光电转化效率较高等优势而受广泛关注。介绍了染料敏化太阳能电池的组成结构和基本原理,详细地论述了DSSCs各个组件的优化措施,包括光阳极结构的优化、染料敏化剂的性能、电解质的特性以及对电极材料的发展,并对其中出现的一些问题进行阐述以及对未来的发展方向和前景进行展望。
