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Solution-processed P3HT-functional graphene for efficient heterojunction organic photoelectronics

  • Jian Ye (a1), Xueliang Li (a2), Jianjun Zhao (a1), Xuelan Mei (a1) and Qian Li (a1)...

Abstract

A facile method that allows chemical functionalization of graphene sheets is described. These result in a solution processable graphene-based material, namely F-graphene, which can be integrated in organic photoelectronic devices, due to its unique structural and photophysical properties. The resultant poly(3-hexylthiophene)(P3HT):F-graphene are soluble in common organic solvents, facilitating the structure/property characterization and the device fabrication by solution processing. The synthesized F-graphene is blended with the conjugated polymer in optimized concentration. The high and sensitive photoresponse of P3HT:F-graphene was demonstrated by the photodetector. A heterojunction photovoltaic device based on the solution-cast P3HT:F-graphene (with a BHJ structure of ITO/ZnO/P3HT:F-graphene/MoO3/Ag) showed a power conversion efficiency of 1.9% under AM1.5 illumination (100 mW/cm2). It provides a new method for graphene application in organic photoelectronics. It can easily enhance the performance of devices by optimizing the structure and bulk heterojunction blend in the near future.

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a) Address all correspondence to this author. e-mail: bbyejian@126.com

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Contributing Editor: Sam Zhang

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Solution-processed P3HT-functional graphene for efficient heterojunction organic photoelectronics

  • Jian Ye (a1), Xueliang Li (a2), Jianjun Zhao (a1), Xuelan Mei (a1) and Qian Li (a1)...

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