Investigation of Quinquethiophene Derivatives with Different End Groups for High Open Circuit Voltage Solar Cells
Investigation of Quinquethiophene Derivatives with Different End Groups for High Open Circuit Voltage Solar Cells
复制标题
高开路电压太阳能电池用不同端基的五喹噻吩衍生物的研究
DOI：
10.1002/aenm.201300046
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发表时间：
2013-05-01
影响因子：
27.8
通讯作者：
Chen, Yongsheng
中科院分区：
文献类型：
--
作者：
Long, Guankui;Wan, Xiangjian;Chen, Yongsheng
为了获得比其类似物更高的开路电压（Voc），合成了3个具有不同端基的2-氰乙酸辛酯（DCAO5T）、3-乙基罗丹宁（DERHD5T）和2h -茚-1,3-二酮（DIN5T）的五硫代噻吩衍生物。采用简单的溶液自旋镀膜工艺研究了这三种分子作为给体和富勒烯衍生物作为受体在体异质结太阳能电池中的光伏性能。其中，DERHD5T在AM 1.5G （100 mW cm2）照射下Voc高达1.08伏，功率转换效率为4.63%。通过理论模拟分析了产生高挥发性有机化合物的原因，并与实验结果进行了比较。
Three quinquethiophene derivatives with different end groups of octyl 2-cyanoacetate (DCAO5T), 3-ethylrhodanine (DERHD5T) and 2H-indene-1,3-dione (DIN5T) are synthesized in order to obtain higher open circuit voltage (Voc) than their septithiophene analogs. The photovoltaic performance of these three molecules as donors and fullerene derivatives as the acceptors in bulk heterojunction solar cells are studied by using the simple solution spin-coating fabrication process. Among them, DERHD5T shows Voc as high as 1.08 volt and power conversion efficiency of 4.63% under AM 1.5G irradiation (100 mW cm2). The reasons for the high Voc were investigated by the theoretical simulations and consistent results have been obtained in comparison with experimental measurements.