用于高性能自供电肖特基光电二极管的二维 InP 晶体的空间约束合成

IF 7.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Applied Materials Today Pub Date : 2024-08-06 DOI:10.1016/j.apmt.2024.102376

Lin-Qing Yue, Yan-Lei Shi, Sheng Qiang, Nie-Feng Sun, Jing-Kai Qin, Liang Zhen, Cheng-Yan Xu

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引用次数: 0

摘要

纳米厚度的超薄 III-V 族半导体已成为光电子学领域各种应用的理想候选材料。在这项工作中，通过使用空间致密方法，获得了厚度缩减至 10 纳米的超薄磷化铟（InP）晶体，在 1064 纳米激发下，其二次谐波发生（SHG）电感高达 2.05 × 10 m/V，在已报道的二维半导体中名列前茅。此外，还实现了具有非对称电接触的高性能肖特基光电二极管。该自供电器件在 532 纳米光照下的响应率高达 15.3 mA W，检测率为 1.94 × 10 Jones，在零偏压下的光电流开/关比超过 10，同时响应时间仅为几毫秒。这些研究成果为开发未来应用中的高性能光电探测器所需的超薄 III-V 半导体提供了一条捷径。

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Space-confined synthesis of two-dimensional InP crystals for high-performance self-powered Schottky photodiode

Atomic-thin III-V semiconductors with nanometer thickness have emerge as promising candidate for diverse applications in optoelectronics. In this work, by using a space-confine approach, ultra-thin indium phosphide (InP) crystals were obtained with thickness scaled down 10 nm, which demonstrate an extremely giant second harmonic generation (SHG) susceptivity up to 2.05 × 10 m/V under 1064 nm excitation, among the best of reported two-dimensional semiconductors. In addition, a high-performance Schottky photodiode with asymmetric electrical contact was implemented. The self-powered device exhibits a high responsivity of 15.3 mA W and a detectivity of 1.94 × 10 Jones under 532 nm light illumination, revealing a high on/off ratio of photocurrent exceeding 10 under zero bias, accompanied by rapid response times of only milliseconds. The results offer a streamlined avenue to develop ultrathin III-V semiconductor for high-performance photodetectors in future applications.

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来源期刊

Applied Materials Today Materials Science-General Materials Science

CiteScore

14.90

自引率

3.60%

发文量

393

审稿时长

26 days

期刊介绍： Journal Name: Applied Materials Today Focus: Multi-disciplinary, rapid-publication journal Focused on cutting-edge applications of novel materials Overview: New materials discoveries have led to exciting fundamental breakthroughs. Materials research is now moving towards the translation of these scientific properties and principles.