Nanoscale 2014-07-07

Fluorine-functionalized and simultaneously reduced graphene oxide as a novel hole transporting layer for highly efficient and stable organic photovoltaic cells.

Su-Hyeon Kim, Cheol-Ho Lee, Jin-Mun Yun, Yong-Jin Noh, Seok-Soon Kim, Sungho Lee, Seung Mu Jo, Han-Ik Joh, Seok-In Na

Index: Nanoscale 6(13) , 7183-7, (2014)

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Abstract

A one-step reduction and functionalization of graphene oxide (FrGO) was easily achieved using a novel phenylhydrazine-based reductant containing fluorine atoms, which can induce p-type doping due to its high electronegativity. The FrGO-based OPV exhibited a high power conversion efficiency of ∼6.71% and a superior OPV-stability to commercial PEDOT:PSS.