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Recent progress in two-dimensional Bi2O2Se and its heterostructures.

Xiaoyu Hu1, Wen He1, Dongbo Wang1

  • 1School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China. hewenmse@hit.edu.cn.

Nanoscale
|November 25, 2024
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Summary

Two-dimensional bismuth oxyselenide (Bi2O2Se) shows promise for advanced electronics due to its unique properties. This review covers synthesis, properties, and applications of Bi2O2Se, highlighting challenges for commercialization.

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Two-dimensional (2D) materials research is rapidly expanding, with bismuth oxyselenide (Bi2O2Se) emerging as a key material.
  • Bi2O2Se offers unique thermoelectric and optoelectronic properties in its 2D form, including high carrier mobility and air stability.

Purpose of the Study:

  • To provide a comprehensive review of the progress in 2D Bi2O2Se research.
  • To summarize synthesis methods, property modulation techniques, and diverse applications.
  • To discuss the potential and challenges of Bi2O2Se for next-generation devices.

Main Methods:

  • Review of existing literature on Bi2O2Se synthesis and characterization.
  • Analysis of studies on property modulation and device fabrication.
  • Compilation of research on Bi2O2Se heterostructures with other dimensional materials.

Main Results:

  • 2D Bi2O2Se exhibits excellent optoelectronic properties, high carrier mobility, tunable band gap, and mechanical stability.
  • Various synthesis methods yield high-quality 2D Bi2O2Se, enabling diverse applications.
  • Bi2O2Se-based field-effect transistors (FETs), photodetectors, and neuromorphic devices show significant advancements.

Conclusions:

  • 2D Bi2O2Se is a highly promising material for advanced electronic and optoelectronic applications.
  • Further research into heterostructures and addressing commercialization challenges is crucial for its widespread adoption.
  • Bi2O2Se holds potential for future energy technologies, sensors, and memory devices.