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偏振光电探测器能够测量光的偏振信息。传统的偏振光电探测器往往需要结合偏振片、波片等光学元件，导致其体积庞大、结构复杂，无法满足当前器件小型化发展的需求。该文利用扭转堆叠的ReS2/MoSe2异质结，成功实现了对入射线偏振光的测量。利用异质结中的内建电场，该探测器实现了零偏压条件下的光探测，最大响应度为0.17 A/W,比探测率为6×109 Jones。同时，结合两个异质结的线偏振光响应电流，该器件在600～800 nm的波长范围内实现了对任意线偏振光的偏振态测量。研究为自驱动线偏振光电探测器提供了一种简单可行的方法。
Abstract：Polarization-sensitive photodetectors can sense the polarization states of light. Traditional polarization-sensitive photodetectors usually require the incorporation of extra optical components such as polarizers and waveplates, resulting in bulky device and complex structure, which fails to meet the demand for miniaturization of devices. In this work, we have demonstrated linear polarization-sensitive photodetectors based on twisted stacked ReS2/MoSe2 heterojunctions. Due to the formation of built-in electric field caused by the heterojunctions, the photodetectors can achieve optical response under zero bias voltage, with a maximum responsivity of 0.17 A/W and a specific detectivity of 6×109 Jones. Meanwhile, photodetectors fabricated by combining two twisted stacked ReS2/MoSe2 heterojunctions can realize detection of arbitrary linear polarized light within a wide wavelength range of 600～800 nm. This study provides a simple method for self-powered linear polarization-sensitive photodetectors.
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基本信息:
DOI：10.16152/j.cnki.xdxbzr.2025-06-004
中图分类号:TN36;TB34
引用信息:
[1]李德慧,林庭浩,刘泽一,等.基于ReS_2/MoSe_2异质结的自驱动线偏振光电探测器[J].西北大学学报(自然科学版),2025,55(06):1244-1252.DOI:10.16152/j.cnki.xdxbzr.2025-06-004.
基金信息:
国家重点研发计划(2022YFB2803900); 国家自然科学基金(62074064)