Fast Photothermoelectric Response in CVD-Grown Two-Dimensional Bi2O2Se Nanoplates

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2025-03-04 DOI:10.1021/acsaelm.5c0000910.1021/acsaelm.5c00009

Keyu Wen, Daolong Liu, Haoyu Zhai, Cong Wang, Libo Zhang, Wenshuai Gao, Xue Liu, Mingliang Tian, Shouguo Wang and Xuegang Chen*,

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引用次数: 0

Abstract

As an emerging two-dimensional (2D) semiconductor material, layered Bi₂O₂Se exhibits tremendous potential applications in the field of optical devices due to its high electron mobility, exceptional optical response, and remarkable air stability. In this study, high-quality Bi₂O₂Se nanoplates were grown on a fluorophlogopite mica (f-mica) substrate via a chemical vapor deposition approach. A high-quality two-terminal Bi₂O₂Se device is fabricated by traditional electron beam lithography, which displays linear current–voltage characteristics. The Bi₂O₂Se device exhibits an ON/OFF ratio of 10⁴ as well as n-type semiconductor characteristics. A maximum responsivity of 0.029 A W^–1 and a fast photoresponse time of 35–42 μs under 638 nm laser illumination are discovered. Spatially resolved scanning photocurrent microscopy is conducted, which indicates that the photothermoelectric effect should be the dominant contribution for the observed photocurrent in the Bi₂O₂Se device. This study paves the way for developing high-performance photoelectron devices based on Bi₂O₂Se materials.

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico