NPB修饰层提升聚合物太阳电池的性能  

Characteristics Improvement of Polymer Solar Cells by Adding NPB Modified Layers

作　　者：申智利 李海蓉[1] 刘肃[1] 蒲年年[1] 马国富[1] 

机构地区：[1]兰州大学物理科学与技术学院,兰州730000

出　　处：《半导体技术》2014年第2期137-141,共5页Semiconductor Technology

基　　金：甘肃省自然科学研究基金计划资助项目(1107RJZA090);兰州市科技计划项目(2010-1-1);兰州市城关区科技计划项目(2011-05-02)

摘　　要：将广泛用于光伏器件的有机材料二胺(NPB)应用到光电器件中,是一种新的提升器件性能的思路。基于NPB材料的空穴传输特性,以3-己基噻吩的聚合物(P3HT)和富勒烯衍生物(PCBM)作为活性层,制备了不同阳极修饰层的太阳电池,研究了NPB修饰层对器件性能的影响。通过光照和黑暗条件下电学特性的比较以及拟合计算,分析了NPB修饰层对性能影响的内在原因,并对其厚度做了优化。结果表明:NPB厚度为5 nm时,器件的短路电流、开路电压和填充因子都有所提高。NPB修饰层可以改善界面接触,提高空穴的收集效率。Using the organic material NPB monopoly in luminescent devices is a new way to im- prove the device performance. Based on the hole transport properties of diamine （NPB） material, P3HT and PCBM, which act as the active layer, solar cells with different anode decorated layers were fabricated and the effect of NPB decorated layers on solar cells was investigated. By comparison and fitting calculation of electrical characteristics in the dark and light condition, the underlying causes of the effect of NPB modified layer on the device performance were analyzed, and its thickness was optimized. The re- suits indicate that at the optimized thickness （5 nm） of NPB, the short circuit current, open circuit voltage and fill factor were all increased. The NPB modified layer plays an important role in forming good interface contact between anode and donor, can improve the hole collection efficiencies.

关 键 词：NPB P3HT PCBM 体异质结 阳极修饰 聚合物太阳电池 

分 类 号：TM914.4[电气工程—电力电子与电力传动]