基于给体/受体有机太阳电池性能的研究  

Organic solar cells based on donor-accepter hetero-junction

作　　者：高银浩[1] 闫雷兵[1] 

机构地区：[1]河南科技学院机电学院,河南新乡453003

出　　处：《物理实验》2010年第9期38-40,46,共4页Physics Experimentation

摘　　要：以酞菁铜(CuPc)、对北艹四甲酸二酐(PTCDA)和富勒烯(C60)作为光敏材料分别制备了3个有机太阳电池器件:器件1为ITO/PEDOT(3,4-乙撑二氧噻吩)/CuPc/Al;器件2为ITO/PEDOT/CuPc/PTCDA/Al;器件3为ITO/PEDOT/CuPc/C60/Al.研究发现器件2、3的短路电流和开路电压比1的提高了很多,主要是因为2、3是给体/受体异质结构,它不仅增大了器件的吸收光谱并提供了一个激子解离的有效位置.器件2和3相比,3的短路电流和开路电压比2的提高了1倍多,这主要是因为C60的激子扩散长度比PTCDA的要长,激子解离的几率比激子复合的几率大得多,因此3的性能比2的有了很大的提高.The single-layer and hetero-junction organic solar cells based on copper phthalocyanine （CuPc）, 3,4,9,10-perylenetetracarboxylic dianhydride （PTCDA） and fullerene C60 are fabricated to study their photovoltaic （PV） properties. The short-circuit current and open-circuit voltage of hetero-junction structure solar cells is improved compared with the single layer structure cell. This is due to the introduction of donor-acceptor hetero-junction that both expanded the absorption range and offered efficient exciton dissociation site. In hetero-junction structure solar cells, the short-circuit current and open-circuit voltage of device with C60 as acceptor have been highly improved because C60 has longer exciton diffusion length.

关 键 词：给体/受体 短路电流 开路电压 激子 扩散长度 

分 类 号：TM914.4[电气工程—电力电子与电力传动]