Anomalous layer-dependent electronic and piezoelectric properties of 2D GaInS3nanosheets

Weizhen Chen, Huabing Yin, Shujuan Jiang, Siyuan Liu, Chang Liu, Bing Wang, Guang Ping Zheng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Two-dimensional (2D) GaInS3 nanosheets are found to exhibit thermal and structural stabilities, good oxidation resistance, and tunable and layer-dependent electronic properties from first-principles calculations. Remarkably, the nanosheets with arbitrary thickness possess robust in-plane piezoelectricity without the odd-even effect commonly observed in other 2D piezoelectric materials, which is attributed to the retention of noncentrosymmetry resulting from their homogeneous and direct stacking patterns. The piezoelectric stress coefficient e 11 3 D of the nanosheets is about 0.23 C/m2, almost independent of the numbers of atomic layers of 2D GaInS3. The stability in piezoelectricity and the high carrier mobility of 2D GaInS3 nanosheets could endow them with promising application prospects in nanoelectronic and nanoelectromechanical devices.

Original languageEnglish
Article number213103
JournalApplied Physics Letters
Volume118
Issue number21
DOIs
Publication statusPublished - 24 May 2021

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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