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中文摘要：
为了进一步提高电池的开路电压,把吡啶并吡嗪核上的甲氧基苯换成辛氧基苯,设计合成了一系列以三苯胺为给体、辛氧基苯取代的吡啶并[3,4-b]吡嗪为辅助受体、噻吩(呋喃、苯)为π-链、氰基乙酸为受体的新型染料敏化剂(OPP-I~III).对OPP-I~III的光电化学性质、器件性能以及电荷转移动力学等进行了系统的测试及研究.实验结果表明,用辛氧基取代甲氧基,能有效减少染料在TiO2表面的聚集,同时能阻止电解质和TiO2导带的接触,抑制电荷复合,提高了开路电压.最后,在AM1.5(100mW·cm-2)光强条件下,OPP-I敏化的电池最大光电转换效率为6.57%(短路电流为11.7mA·cm-2,开路电压为717mV,填充因子为0.78).
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