Research on thermal stress and trapping level of green mini LED

Yuxuan Wang; Shengrui Xu; Bingji Li; Chenyan Cheng; Xiao Wang; Xuhao Yang; Qiong Wang; Juanxiong Chang; Cai Chen; Yuyan Shao; Yong Huang

doi:10.1117/12.2628550

16 February 2022 Research on thermal stress and trapping level of green mini LED

Yuxuan Wang, Shengrui Xu, Bingji Li, Chenyan Cheng, Xiao Wang, Xuhao Yang, Qiong Wang, Juanxiong Chang, Cai Chen, Yuyan Shao, Yong Huang

Author Affiliations +

Proceedings Volume 12164, International Conference on Optoelectronic Materials and Devices (ICOMD 2021); 121641I (2022) https://doi.org/10.1117/12.2628550
Event: 2021 International Conference on Optoelectronic Materials and Devices, 2021, Guangzhou, China

Abstract

The same batch of green LEDs were subjected to thermal stress aging for different periods of time. The I-V characteristic test result shows that the current of the aging device under the same bias voltage increases, and the increase is positively correlated with the aging time. Observing the light-emitting condition of the device under the CCD lens, it is found that the long-term aging leads to the deterioration of the light-emitting characteristics of the device. The current transport mechanism is analyzed based on the test results of I-V characteristics and optical characteristics. Finally, the influence of the trap on the luminous characteristics of the green LED was verified by the Silvaco TCAD simulation tool.

Citation Download Citation

Yuxuan Wang, Shengrui Xu, Bingji Li, Chenyan Cheng, Xiao Wang, Xuhao Yang, Qiong Wang, Juanxiong Chang, Cai Chen, Yuyan Shao, and Yong Huang "Research on thermal stress and trapping level of green mini LED", Proc. SPIE 12164, International Conference on Optoelectronic Materials and Devices (ICOMD 2021), 121641I (16 February 2022); https://doi.org/10.1117/12.2628550

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available