Effect of chemically converted graphene as an electrode interfacial modifier on device-performances of inverted organic photovoltaic cells. (14th May 2015)

• Record Type: Journal Article
• Authors: Kang, Tae-Woon; Noh, Yong-Jin; Yun, Jin-Mun; Yang, Si-Young; Yang, Yong-Eon; Lee, Hae-Seong; Na, Seok-In
• Is Part Of: Semiconductor science and technology. Volume 30:Number 6(2015:Jun.)
• Publication Date: 2015-05-14
• Subjects: organic photovoltaic cells -- chemically converted graphene -- interfacial layer -- graphene oxide -- reduced graphene oxide; Semiconductors -- Periodicals; 621.38152
• DOI: 10.1088/0268-1242/30/6/065008
• Languages: English
• ISSNs: 0268-1242

Abstract

Abstract: This study examined the effects of chemically converted graphene (CCG) materials as a metal electrode interfacial modifier on device-performances of inverted organic photovoltaic cells (OPVs). As CCG materials for interfacial layers, a conventional graphene oxide (GO) and reduced graphene oxide (rGO) were prepared, and their functions on OPV-performances were compared. The inverted OPVs with CCG materials showed all improved cell-efficiencies compared with the OPVs with no metal/bulk-heterojunction (BHJ) interlayers. In particular, the inverted OPVs with reduction form of GO showed better device-performances than those with GO and better device-stability than poly(3, 4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS)-based inverted solar cells, showing that the rGO can be more desirable as a metal/BHJ interfacial material for fabricating inverted-configuration OPVs.