PEDOT:PSS Modification by blending graphene oxide to improve the efficiency of organic solar cells. Issue 9 (15th February 2017)

• Record Type: Journal Article
• Authors: Wang, Yishan; Wang, Haowei; Xu, Junfeng; He, Bo; Li, Weile; Wang, Qi; Yang, Shengyi; Zou, Bingsuo
• Is Part Of: Polymer composites. Volume 39:Issue 9(2018)
• Page Start: 3066
• Page End: 3072
• Publication Date: 2017-02-15
• Subjects: Polymeric composites -- Periodicals; 620.192
• DOI: 10.1002/pc.24311
• Languages: English
• ISSNs: 0272-8397

Abstract

Abstract : In this work, we present a simple method to modify poly(3, 4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) by directly blending graphene oxide (GO) into PEDOT:PSS to form (PEDOT:PSS):GO nanocomposite and it shows an enhanced conductivity than that of pristine PEDOT:PSS due to the benzoid‐quinoid structure transition of PEDOT:PSS. By applying the obtained nanocomposite (PEDOT:PSS):GO film as the hole‐transporting layer (HTL) in organic solar cells (OSCs) ITO/HTL/active‐layer/Ca/Al, in which the active layer consists of poly(3‐hexylthiophene‐2, 5‐diyl) (P3HT):[6, 6]‐phenyl C61 butyric acid methyl ester (PC61 BM) or P3HT:indene‐C60 bisadduct (ICBA), we found that the power conversion efficiency of these two OSCs with P3HT:PC61 BM and P3HT:ICBA as the active layer reached to 3.96% and 5.89%, respectively, showing correspondingly enhancement of 14.78% and 9.89% as compared with those of the control devices in which PEDOT:PSS without any modification. Therefore, PEDOT:PSS modified with GO provides an easy way to fabricate stable OSCs with high performance and low cost. POLYM. COMPOS., 39:3066–3072, 2018. © 2017 Society of Plastics Engineers