摘要
通过制备四种不同结构的器件,详细分析研究了活性层/阴极界面修饰对P3HT:PCBM聚合物体异质结太阳能电池性能的影响。当在P3HT:PCBM薄膜上旋涂一层PCBM,并蒸镀0.5nm LiF时所制备的器件的填充因子和光电转换效率都得到较大的提高。对器件的光电性能和薄膜的形貌进行深入分析,阐明界面修饰的作用机理。
Four types of devices with different structures were fabricated, and the influences of organic layer/cathode surface modification to the performance of bulk heterojunction polymer solar cells were investigated in details. When depositing a layer of PCBM on the surface of P3HT.PCBM thin film by spin--coating, followed by the deposition of a 0.5nm--thick LiF, the fill factor and power conversion efficiency of the polymer solar cells can be improved significant- ly. The origination of the improvement was investigated by studying the optoelectronic properties of the solar cells and the morphology of the organic thin films.
出处
《光电子技术》
CAS
北大核心
2013年第3期177-180,共4页
Optoelectronic Technology
基金
国家高技术研究发展(863)计划基金资助项目(2012AA030603)
教育部博士点专项科研基金资助项目(20103514120009)
关键词
有机层
阴极界面修饰
体异质结
聚合物太阳电池
光电转换效率
organic layer/cathode surface modification
bulk heterojunction
polymer solarcells
power conversion efficiency
