高性能的二维层状材料硫化钨界面层的有机太阳能电池（英文）  

Two-Dimensional WS_2 Sheets as Interfacial Layer for High-Performance Organic Solar Cells

作　　者：马春燕[1] 傅伟飞[1] 黄国伟[1] 陈红征[1] 徐明生[1] 

机构地区：[1]浙江大学硅材料国家重点实验室高分子科学与工程学系,杭州310027

出　　处：《化学学报》2015年第9期949-953,共5页Acta Chimica Sinica

基　　金：Project supported by Zhejiang Provincial Natural Science Foundation of China(Youth Talent Program:R4110030);the Program for New Century Excellent Talents in University(No.NCET-12-0494);the Research Fund for the Doctoral Program of Higher Education(No.20130101110123);the Program for 14th China-Japan S&T Cooperation(No.2013DFG52800)~~

摘　　要：化学剥离的硫化钨二维层状材料在经过紫外臭氧处理后用作有机太阳能电池的空穴传输层,可以显著提高电池器件的光电转化效率至8.37%;作为空穴传输层,硫化钨二维层状材料可以与经典的空穴传输材料PEDOT:PSS相媲美.利用X射线光电子能谱(XPS)、拉曼光谱(Raman)、原子力显微镜(AFM)对硫化钨的结构和形貌进行分析.结果表明,紫外臭氧处理过后,氧原子能填充硫化钨因锂插层剥离而产生的硫空位,减少它的缺陷,并且使其部分被氧化,从而改善硫化钨的电学性能.Two-dimensional layered WS2 sheets is used as the hole extraction layer（HEL） in organic solar cells（OSCs）. We find that UV-ozone treatment of the chemically exfoliated WS2 sheets can significantly improve the device performance of the OSCs with the power conversion efficiency（PCE） of about 8.37%, which is comparable to the OSCs with the standard PEDOT：PSS as the HEL. We attribute the improvement to the incorporation of oxygen into the lattice of the WS2 sheets. The oxygen incorporation reduces the lattice vacancies of WS2 sheets and makes the WS2 partially oxidized and consequently improves the electrical properties of the WS2 sheets.

关 键 词：二维层状材料 硫化钨 有机太阳能电池 空穴传输层 高性能 

分 类 号：TQ136.13[化学工程—无机化工] TM914.4[电气工程—电力电子与电力传动]