Emerging 2D Metal Oxides: From Synthesis to Device Integration

Kui Zhou, Gang Shang, Hsiao Hsuan Hsu, Su Ting Han, Vellaisamy A.L. Roy, Ye Zhou

Research output: Contribution to journalReview articlepeer-review

64 Citations (Scopus)

Abstract

2D metal oxides have aroused increasing attention in the field of electronics and optoelectronics due to their intriguing physical properties. In this review, an overview of recent advances on synthesis of 2D metal oxides and their electronic applications is presented. First, the tunable physical properties of 2D metal oxides that relate to the structure (various oxidation-state forms, polymorphism, etc.), crystallinity and defects (anisotropy, point defects, and grain boundary), and thickness (quantum confinement effect, interfacial effect, etc.) are discussed. Then, advanced synthesis methods for 2D metal oxides besides mechanical exfoliation are introduced and classified into solution process, vapor-phase deposition, and native oxidation on a metal source. Later, the various roles of 2D metal oxides in widespread applications, i.e., transistors, inverters, photodetectors, piezotronics, memristors, and potential applications (solar cell, spintronics, and superconducting devices) are discussed. Finally, an outlook of existing challenges and future opportunities in 2D metal oxides is proposed.

Original languageEnglish
Article number2207774
JournalAdvanced Materials
Volume35
Issue number21
DOIs
Publication statusPublished - 25 May 2023
Externally publishedYes

Keywords

  • 2D insulators
  • 2D metal oxides
  • photodetectors
  • piezotronics
  • transistors

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