物理学报2011，Vol.60Issue(5)：796-801,6.
利用不同阴极缓冲层来改善Pentacene/C60太阳能电池的性能
Inserting various cathodic buffer layers to enhance the performance of Pentacene/C60 based organic solar cells
摘要
Abstract
Devices with the structure of ITO/Pentacene/C60/Al were prepared. Then, in order to enhance the performance of these cells and study the mechanism of the cathodic buffer layer, bathocuproine (BCP) of different thickness were inserted between C60 and Al. When inserting 10 nm BCP, the power conversion effciency of the cell is as high as 0.46％. On this basis, bathophenanthroline (Bphen) and 3, 4, 9, 10-Perylenetetracarb-oxylicdianhydride (PTCDA) are used instead of BCP, so as to compare and discuss the effects on the performance of the solar cells caused by the electron mobility and optical absorption properties of the cathodic buffer layers. As the electron mobility of Bphen is two orders of magnitude higher than that of BCP, the efficiency of devices with Bphen as the buffer layer was improved to 0. 56％. Furthermore,the absorption spectrum of devices was obviously enhanced by inserting PTCDA material which has large absorption in visible light region, and the highest current density of such device was enhanced to 5.97 mA/cm2 and the efficiency was 0. 87％.关键词
有机太阳能电池/Pentacene/C60/缓冲层Key words
organic solar cells/ Pentacene/ C60/ buffer layer引用本文复制引用
刘瑞,徐征,赵谡玲,张福俊,曹晓宁,孔超,曹文喆,龚伟..利用不同阴极缓冲层来改善Pentacene/C60太阳能电池的性能[J].物理学报,2011,60(5):796-801,6.基金项目
国家自然科学基金(批准号:60978060,10974013,10804006),教育部博士点基金(批准号:20090009110027),北京市自然科学基金(批准号:1102028),北京市科委(批准号:Z090803044009001),科技部国际合作计划(批准号:2008DFA61420),北京交通大学"红果园双百计划"资助的课题. （批准号:60978060,10974013,10804006）
