Graphene oxide grafted polyethylenimine electron transport materials for highly efficient organic devices. Issue 44 (9th September 2015)

• Record Type: Journal Article
• Authors: Kim, Jeongmo; Lee, Heeryung; Lee, Seung Joo; da Silva, Wilson Jose; bin Mohd Yusoff, Abd. Rashid; Jang, Jin
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 44(2015)
• Page Start: 22035
• Page End: 22042
• Publication Date: 2015-09-09
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c5ta06020f
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : We propose a mixture of graphene oxide and polyethylenimine ethoxylate as an efficient electron transport layer for organic solar cells. Abstract : We demonstrate that solution processed graphene oxide (GO) grafted polyethylenimine ethoxylate (PEIE) is an efficient electron transport layer for organic solar cells with an active layer that consists of poly({4, 8-bis[(2-ethylhexyl)oxy]benzo[1, 2- b :4, 5- b ′]dithiophene-2, 6-diyl}{3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3, 4- b ]thiophenediyl}) (PTB7) mixed with [6, 6]-phenyl C71 butyric acid methyl ester (PC71 BM). The optimized GO:PEIE demonstrated the best efficiency of 8.21% compared to that of the GO and PEIE devices.