Solution adsorption formation of a π-conjugated polymer/graphene composite for high-performance field-effect transistors

Yun Liu, Wei Hao, Huiying Yao, Shuzhou Li, Yuchen Wu, Jia Zhu, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

23 Citations (Scopus)

Abstract

Semiconducting polymers with π-conjugated electronic structures have potential application in the large-scale printable fabrication of high-performance electronic and optoelectronic devices. However, owing to their poor environmental stability and high-cost synthesis, polymer semiconductors possess limited device implementation. Here, an approach for constructing a π-conjugated polymer/graphene composite material to circumvent these limitations is provided, and then this material is patterned into 1D arrays. Driven by the π–π interaction, several-layer polymers can be adsorbed onto the graphene planes. The low consumption of the high-cost semiconductor polymers and the mass production of graphene contribute to the low-cost fabrication of the π-conjugated polymer/graphene composite materials. Based on the π-conjugated system, a reduced π–π stacking distance between graphene and the polymer can be achieved, yielding enhanced charge-transport properties. Owing to the incorporation of graphene, the composite material shows improved thermal stability. More generally, it is believed that the construction of the π-conjugated composite shows clear possibility of integrating organic molecules and 2D materials into microstructure arrays for property-by-design fabrication of functional devices with large area, low cost, and high efficiency.

Original languageEnglish
Article number1705377
Number of pages9
JournalAdvanced Materials
Volume30
Issue number3
DOIs
Publication statusPublished - 18 Jan 2018
Externally publishedYes

Keywords

  • field-effect transistors
  • graphene
  • organic semiconductors
  • solution adsorption
  • π–π interaction

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