• 文献标题:   Facile fabrication of an organic semiconductor/graphene microribbon heterojunction by self-assembly
  • 文献类型:   Article
  • 作  者:   ZHANG JF, XU XJ, YAO C, LI LD
  • 作者关键词:  
  • 出版物名称:   RSC ADVANCES
  • ISSN:   2046-2069
  • 通讯作者地址:   Univ Sci Technol Beijing
  • 被引频次:   2
  • DOI:   10.1039/c6ra09053b
  • 出版年:   2016

▎ 摘  要

Herein, we report a facile self-assembly strategy to prepare a novel 1D organic semiconductor/graphene microribbon heterojunction by coating a layer of graphene sheets on the organic semiconductor microribbon. The organic semiconductor microribbon composed of a p-type small molecule 3,7-bis(5-(2-ethylhexyl)thiophen-2-yl) dithieno[2,3-b:2',3'-e]pyrazine (BEHT-DTP) was prepared by evaporation-induced self-assembly. Subsequently the graphene nanosheets, as an electron acceptor, were self-assembled onto the surface of a BEHT-DTP microribbon in aqueous solution to form a 1D p-n junction. The device based on the single microribbon heterojunction demonstrated enhanced photoconductivity properties. This preliminary work points out a new path to fabricate 1D organic nano/micro-heterojunctions, avoiding complex molecular design and equipment.