国防科技大学学报2025，Vol.47Issue(5)：41-50,10.DOI:10.11887/j.issn.1001-2486.25010007
厚度调控的二维α-In2Se3可调谐宽谱偏振光电探测器
Two-dimensional α-In2Se3 based photodetectors for tunable and broadband polarization response via thickness regulation
摘要
Abstract
In current research,less attention has been paid to the relationship between the thickness and optoelectronic properties of α-In2Se3,and most research has been focused on the mechanical exfoliation of α-In2Se3 nanosheets,which is not conducive to future industrial applications.A modified physical vapor deposition method for the controllable growth of α-In2Se3 was proposed,and the broad-spectrum response performance of three thicknesses of α-In2Se3 nanosheets in the visible to near-infrared wavelength range was systematically studied.The results indicate that the thickness of α-In2Se3 nanosheets can significantly regulate the photoelectric performance,and the photoresponsivity and specific detection rate increase with increasing thickness.In addition,it was found that the α-In2Se3 with a thickness of 32.8 nm exhibited a photocurrent anisotropy ratio(dichroic ratio)of 4 at 635 nm,indicating good polarization-sensitive detection functionality.In summary,the two-dimensional α-In2Se3 prepared by the physical vapor deposition method demonstrates a wide visible-infrared spectral response and good polarization detection ability,making it an ideal candidate material for two-dimensional multifunctional optoelectronic devices.关键词
α-In2Se3/物理气相沉积/厚度调控/光电探测器/偏振探测Key words
α-In2Se3/physical vapor deposition/thickness regulation/photodetector/polarization detection分类
信息技术与安全科学引用本文复制引用
舒胜,李京波,高伟,杨孟孟..厚度调控的二维α-In2Se3可调谐宽谱偏振光电探测器[J].国防科技大学学报,2025,47(5):41-50,10.基金项目
国家自然科学基金资助项目(62004071) （62004071）
广东省基础与应用基础研究基金资助项目(2022A1515110981) （2022A1515110981）
