Catastrophic degradation of LEDs: failure analysis and perspective
With this work we will report on catastrophic degradation of high power LEDs for general lighting, horticulture, and automotive. Results indicate that while gradual degradation is limited at mild driving condition, catastrophic degradation can arise suddenly as the stress condition increases. The presented results illustrate failure analysis of encapsulant, package, and chip of white and monochromatic LEDs and perspectives to limit these issues.
Authors
- Enrico Zanoni (ORCID: https://orcid.org/0000-0001-7349-9656)
- Jördis Rose
- Julien Magnien (ORCID: https://orcid.org/0000-0001-5188-8845)
- Nicola Trivellin (ORCID: https://orcid.org/0000-0002-0916-1877)
- Matteo Buffolo (ORCID: https://orcid.org/0000-0002-9255-6457)
- Ambrogio Huang
- Alessandro Caria (ORCID: https://orcid.org/0000-0001-7400-6243)
- Matteo Meneghini (ORCID: https://orcid.org/0000-0003-2421-505X)
- Carlo De Santi (ORCID: https://orcid.org/0000-0001-6064-077X)
- G. Mura (ORCID: https://orcid.org/0000-0002-8452-2345)
- Francesco Piva (ORCID: https://orcid.org/0000-0003-3620-5510)
- Gaudenzio Meneghesso (ORCID: https://orcid.org/0000-0002-6715-4827)
Institutions
- University of Padua (IT)
- University of Cagliari (IT)
- Materials Center Leoben (Austria) (AT)
Publication Details
- Published
- 2024-11-12
- DOI
- https://doi.org/10.1109/ls2463127.2024.10881583
- Citations
- 1
- Primary Topic
- Industrial Vision Systems and Defect Detection
- Type
- article
- Field-Weighted Citation Impact
- 0.35