Investigation on the properties of GaN-LED irradiated by high-energy electron beam

Chao LIU; Liyuan YU; Zhigang WANG; Sen QIAN; Jingkai XIA; Na ZHU; Feng GAO; Guangpeng AN; Yichao MA; Hongshe DANG; Yinglei WU; Jie YANG

doi:10.11889/j.0253-3219.2016.hjs.39.120503

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Investigation on the properties of GaN-LED irradiated by high-energy electron beam

NUCLEAR PHYSICS, INTERDISCIPLINARY RESEARCH | 更新时间：2021-05-24

- Investigation on the properties of GaN-LED irradiated by high-energy electron beam
- NUCLEAR TECHNIQUES Vol. 39, Issue 12, Article number: 120503(2016)
- 作者机构：
  
  1.天津工业大学天津 300387
  2.核探测与核电子学国家重点实验室北京 100049
  3.中国科学院高能物理研究所北京 100049
  4.中国科学院大学北京 100049
  5.陕西科技大学西安 710021
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China;by National Natural Science Foundation of China;National Natural Science Foundation of China
- DOI：10.11889/j.0253-3219.2016.hjs.39.120503
  CLC： TN312.8
- Received：27 May 2016，
  
  Revised：19 September 2016，
  
  Published：2016-12
- 稿件说明：
移动端阅览
Chao LIU, Liyuan YU, Zhigang WANG, et al. Investigation on the properties of GaN-LED irradiated by high-energy electron beam[J]. Nuclear techniques, 2016, 39(12): 120503
DOI：

Chao LIU, Liyuan YU, Zhigang WANG, et al. Investigation on the properties of GaN-LED irradiated by high-energy electron beam[J]. Nuclear techniques, 2016, 39(12): 120503 DOI： 10.11889/j.0253-3219.2016.hjs.39.120503.

摘要

使用高能电子辐照对GaN基蓝光发光二极管（Light Emitting Diode，LED）光电学性能的影响进行研究。高能电子束流分别对不同组别的LED样品进行辐照实验，并通过自动测控系统对辐照过程中LED的电流、光强、光谱峰值波长进行全程测控。随后，在室温无辐照环境下对上述不同组别的LED样品进行跟踪对比测试研究。实验结果表明，高能辐照对LED的改性有明显效果，具体表现在工作电流和发光功率变化时受辐照影响的稳定性有所改善，光谱峰值波长出现蓝移。同时，GaN基LED在辐照过程中是否通电对LED的光电学性能有显著影响。

Abstract

Background:

The performance of GaN-based light emitting diode (LED) will be affected by the gamma

neutron and electron radiation.

Purpose:

To study the impact of high-energy electron radiation on photoelectric properties of GaN-based LED

samples were setup in the beam line for electron radiation.

Methods:

The current

light power and emission wavelength of the irradiating LED were monitored by an automatic monitoring and control system during the beam time. And the aging tests of these LED samples were also finished.

Results:

The current

the light power stability of each sample were varied with different electron radiation. Also luminescence wavelength of some samples has a certain blue shift phenomenon.

Conclusion:

High-energy radiation has obvious effect on the photoelectric properties of the GaN-based LED.

关键词

Keywords

references

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