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

• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2012,（5）
• 页码范围: 336-339
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11801-012-2242-5

摘要

In this paper,bulk heterojunction solar cells with poly-(3-hexylthiophene) (P3 HT):[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％ DMSO-modified-PEDOT:PSS cell has a power conversion efficiency of 3.34％,Voc of 5.7 V,Jsc of 14.56 mA/cm2 and filling factor (FF) of 40.34％.