Self-assembly of semiconductor/insulator interfaces in one-step spin-coating: A versatile approach for organic field-effect transistors

Chuan Liu, Yun Li, Michael V. Lee, Akichika Kumatani, Kazuhito Tsukagoshi

Research output: Contribution to journalReview articlepeer-review

44 Citations (Scopus)

Abstract

Self-assembly of interfaces is of great interest in physical and chemical domains. One of the most challenging targets is to obtain an optimal interface structure showing good electronic properties by solution-processing. Interfaces of semiconductor/semiconductor, semiconductor/insulator and insulator/insulator have been successfully manipulated to obtain high-performance devices. In this review we discuss a special class of interface, semiconductor/insulator interface, formed by vertical phase separation during spin-coating and focus on the versatile applications in organic field-effect transistors (OFETs). The formation of such an interface can be finished within tens of seconds and its mechanism is related to the materials, surfaces and dynamics. Fascinatingly, such self-assembly could be used to simplify the fabrication procedure, improve film spreading, change interfacial properties, modify semiconductor morphology, and encapsulate thin films. These merits lead to OFETs with high performance and good reliability. Also, the method is very suitable for combining with other solution-processed techniques such as patterning and post-annealing, which leads to facile paper electronics, in situ purification and single crystal formation. Research on this topic not only provides an in-depth understanding of self-assembly in solution processing, but also opens new paths towards flexible organic electronics.

Original languageEnglish
Pages (from-to)7917-7933
Number of pages17
JournalPhysical Chemistry Chemical Physics
Volume15
Issue number21
DOIs
Publication statusPublished - 2013 Jun 7
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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