双链结构有机光敏染料的合成及性能

设计合成了2个含双D-π-A结构的新型有机光敏染料DP1和DP2，利用高分辨质谱(HRMS)、核磁共振氢谱及核磁共振碳谱对其结构进行了表征。 研究了2个染料的光物理和电化学性质，并将其应用于染料敏化太阳能电池(DSSCs)的制作中。 在100×10-3 W/cm2(AM 1.5) 模拟太阳光的照射下，由染料DP2所制备的敏化太阳能电池的光电转化效率为4.10%；开路电压(Voc)、短路电流密度(Jsc)和填充因子(FF)分别为0.63 V、8.59×10-3 A/cm2和0.76。 而在同等条件下，由染料DP1所制作的染料敏化电池光电转化效率为3.83%。

Synthesis and Performance of Organic Photosensitized Dyes Having Double Chain Structure

Two novel organic dyes with double D-π-A branches were designed and synthesized as sensitizers for dye sensitized solar cells(DSSCs). These dyes were characterized by mass spectrometry(MS), proton nuclear magnetic resonance spectrometry(1H NMR), and carbon nuclear magnetic resonance spectrometry(13C NMR). The photophysical and electrochemical properties of these two dyes were studied. Relatively high light to electricity conversion efficiency(η) of 4.10% was achieved using dye DP2 as a sensitizer(open-circuit photovoltage Voc=0.63 V, short-circuit photocurrent density Jsc=8.59×10-3A/cm2 and fill factor FF=0.76) under 100×10-3 W/cm2(AM 1.5G). An efficiency of 3.38% for DSSCs based on dye DP1 was observed under the same conditions.