High efficiency bulk heterojunction organic solar cell by using high conductivity modified PEDOT:PSS as a buffer layer  

作　　者：邓振波 陈征 武慧 吕昭月 杜海亮 邹业 张国良 周茂杨 

机构地区：[1]Key Laboratory of Luminescence and Optical Information,Ministry of Education,Institute of Optoelectronic Technology,Beijing Jiaotong University [2]Department of Physics,School of Science,East China University of Science&Technology

出　　处：《Optoelectronics Letters》2012年第5期336-339,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos.60977027 and 60825407);the Fundamental Research Funds for the Central Universities (No.2010JBZ003);the Beijing Municipal Science & Technology Commission (No.Z090803044009001)

摘　　要：In this paper,bulk heterojunction solar cells with poly-(3-hexylthiophene)(P3HT):[6,6]-phenyl-C61-butyric-acid-methylester(PCBM) as an active layer and modified poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS) as a buffer layer are fabricated.The buffer layer is modified by adding 1% to 5% dimethyl sulfoxide(DMSO) into PEDOT:PSS solution before spin-coating.The conductivity of modified PEDOT:PSS and the performance of solar cells with modified PEDOT:PSS are measured.The highest conductivity of modified PEDOT:PSS with 4% DMSO can achieve 89.693 S/cm.The performance of organic solar cell with PEDOT:PSS modified by 4% DMSO is the best.The 4% DMSOmodified-PEDOT:PSS cell has a power conversion efficiency of 3.34%,V oc of 5.7 V,J sc of 14.56 mA/cm 2 and filling factor(FF) of 40.34%.

关 键 词：Buffer layers Butyric acid Conversion efficiency Dimethyl sulfoxide Fatty acids HETEROJUNCTIONS Organic solvents Solar cells 

分 类 号：TM914.4[电气工程—电力电子与电力传动] TP333[自动化与计算机技术—计算机系统结构]