半极性（20-21）氮化镓微线LED的激光提升和机械弯曲。

IF 3.1 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-07-01 DOI:10.1364/OL.564940

Yun Zhang, Hao Sun, Zhe Zhuang, Tao Tao, Kun Xing, Bin Liu, Yunxia Ye

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引用次数: 0

摘要

由于缺乏合适的衬底，高质量的半极性氮化镓通常是通过在图像化衬底上过度生长获得的，这使得外延膜在表面形貌和缺陷分布上都具有近似周期性的趋势。本研究利用半极性（20-21）LED的这些周期性特性，采用激光提升和机械弯曲工艺制备半极性（20-21）微线LED。得到的半极性（20-21）微丝长度为100微米，分离后残余应力为207 MPa。该微线LED在光泵浦和电注入下均表现出稳定的蓝色发射。在2.2 V的导通电压下，还演示了二极管的整流行为。本研究提供了一种到达GaN微线的方法，特别是半极性和非极性取向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Semi-polar (20-21) GaN microwire LED fabricated by laser lift-off and mechanical bending.

Due to the lack of a suitable substrate, high-quality semi-polar GaN is usually obtained through overgrowth on a patterned substrate, which endows the epitaxial film with an approximately periodic trend in both surface morphology and defect distribution. This study utilizes these periodic properties in semi-polar (20-21) LED, to fabricated semi-polar (20-21) microwire LED with the processes of laser lift-off and mechanical bending. The obtained semi-polar (20-21) microwire has a length of hundred micrometers, with a residual stress of 207 MPa after separation. The microwire LED exhibits a stable blue emission under both optical pumping and electrical injection. A diode rectifying behavior was also demonstrated with a turn-on voltage of 2.2 V. This study provides a method to reach the GaN microwire, especially for the semi-polar and non-polar orientations.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.