Referenced Items are not available for this document.
Degradation of packaged light-emitting diodes (LEDs) under gamma irradiations has been investigated using usual electro-optical characterizations. Failure mechanisms have been revealed by an accurate degradation model taking into account the Stark effect in electroluminescence spectrum and piezoelectric field in the active zone. Gamma irradiations have induced an additional mechanical stress close to 0.25 MPa in the active layer resulting from the change of the polymer mechanical properties used on the LED package.
Published in:
Device and Materials Reliability, IEEE Transactions on
(Volume:11
,
Issue:
2
)
Date of Publication: June 2011
- Page(s):
- 303 - 311
- ISSN :
- 1530-4388
- INSPEC Accession Number:
- 12062874
- Digital Object Identifier :
- 10.1109/TDMR.2010.2101600
- Product Type:
- Journals & Magazines
- Date of Publication :
- 23 December 2010
- Date of Current Version :
- 16 June 2011
- Issue Date :
- June 2011
- Sponsored by :
- IEEE Electron Devices Society
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