Recent Progress in 2D Layered III–VI Semiconductors and their Heterostructures for Optoelectronic Device Applications

Zhibin Yang, Jianhua Hao

Research output: Journal article publicationReview articleAcademic researchpeer-review

88 Citations (Scopus)


During the past decade, great effort has been devoted to research on 2D layered materials due to their reduced thickness and extraordinary physical properties, which open new opportunities for developing next-generation applications in various fields. Ultrathin III–VI semiconductors (e.g., GaSe, InSe, In2Se3, etc.) have emerged as potential candidates for nano-optoelectronic applications thanks to their sizable layer-dependent bandgaps and high carrier mobility, which could enable broadband photodetection and efficient conversion of solar energy. A systematic review is provided on 2D III–VI semiconductor-based state-of-the-art optoelectronic devices, such as phototransistors, photoconductors, and solar cells, reported in recent years. To better understand the mechanism and performance of the devices, an introduction to the electronic structures and optical properties of several representative III–VI members is first given. A comprehensive overview is then given on device geometry design, operating principles, and performance in optoelectronic applications based on III–VI semiconductors and their heterostructures. The techniques to enhance the performances of devices are also discussed. Finally, a brief discussion on the challenges and future opportunities in this field is provided.

Original languageEnglish
Article number1900108
JournalAdvanced Materials Technologies
Issue number8
Publication statusPublished - 17 May 2019


  • 2D heterostructures
  • broadband photodetectors
  • layered III–VI semiconductors
  • optoelectronic devices
  • photovoltaic devices

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Industrial and Manufacturing Engineering


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