Effects of the position of silver nanoprisms on the performance of organic solar cells  

作　　者：张强 秦文静 曹焕奇 杨利营 张凤玲 印寿根 

机构地区：[1]Key Laboratory of Display Material and Photoelectric Devices, Ministry of Education of China, Tianjin University of Technology [2]Key Laboratory of Display Material and Photoelectric Devices of the City of Tianjin, Tianjin University of Technology [3]Biomolecular and Organic Electronics, Center of Organic Electronics, Department of Physics, Chemistry and Biology (IFM), Linkping University

出　　处：《Optoelectronics Letters》2014年第4期253-257,共5页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.60676051);the Natural Science Foundation of Tianjin(No.07JCYBJC12700);the Foundation of Key Discipline of Material Physics and Chemistry of Tianjin

摘　　要：Silver nanoprisms(AgNPs) affect the performance of organic solar cells(OSCs) in different ways depending on their positions in the device. To investigate this issue, we incorporate AgNPs in different positions of OSCs and compare their performance. The power conversion efficiency(PCE) is improved by 23.60% to 3.98% when the AgNPs are incorporated in front of the active layer. On the other hand, when AgNPs are incorporated in the back of the active layer, the short-circuit current density(JSC) is improved by 17.44% to 10.84 mA/cm2. However, if AgNPs are incorporated in the active layer, both open-circuit voltage(VOC) and JSC are decreased. We discuss the position effect on the device performance, clarify the absorption shadow and exciton recombination caused by AgNPs, and finally indicate that the optimal position of plasmonic AgNPs is in front of the active layer.Silver nanoprisms （AgNPs） affect the performance of organic solar cells （OSCs） in different ways depending on their positions in the device. To investigate this issue, we incorporate AgNPs in different positions of OSCs and compare their performance. The power conversion efficiency （PCE） is improved by 23.60% to 3.98% when the AgNPs are in- corporated in front of the active layer. On the other hand, when AgNPs are incorporated in the back of the active layer, the short-circuit current density （Jsc） is improved by 17.44% to 10.84 mA/cm2. However, if AgNPs are incorporated in the active layer, both open-circuit voltage （Voc） and Jsc are decreased. We discuss the position effect on the device performance, clarify the absorption shadow and exciton recombination caused by AgNPs, and finally indicate that the optimal position ofplasmonic AgNPs is in front of the active layer.

关 键 词：有机太阳能电池 最佳位置 电池性能 AGNPS 短路电流密度 功率转换效率 银 有源层 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TU973.19[建筑科学—结构工程]