Photoelectric response of the GaInAsSb heterojunction nanopillars array resonance cathode to oblique incident light

IF 3.9 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-04-03 DOI:10.1016/j.mseb.2025.118156

Zhidong Wang, Lei Liu, Zhihao Cao, Jian Tian, Xingyue Zhangyang

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引用次数: 0

Abstract

GaInAsSb heterojunction nanopillar array (NPAs) photocathode is widely used in low light night vision, high-frequency detection and other fields due to its high absorption efficiency and fast response speed. The work designs a variable composition Ga_xIn_1–xAs_1–ySb_y heterojunction nanopillar array under oblique light incidence, and explores the effect of oblique light incidence on the photoelectric emission performance of the nanopillar array. By using FDTD and numerical simulation methods, the results show that the introduction of incident angle improves the enrichment of charge carriers on the side of the nanopillar, thereby achieving the gain of QE of nanopillar. And when the incident light angle approaches the critical angle, the heterojunction nanopillar array can achieve a QE of nearly 18%, providing a reliable theoretical reference for designing and preparing high-efficiency photocathodes with wide-angle response.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.