DocumentCode
2942034
Title
Improved photon extraction by substrate thinning and surface roughening in 260 nm pseudomorphic ultraviolet light emitting diodes
Author
Jianfeng Chen ; Grandusky, J.R. ; Mendrick, M.C. ; Gibb, S.R. ; Schowalter, L.J.
Author_Institution
Crystal IS, Inc., Green Island, NY, USA
fYear
2012
fDate
7-9 Aug. 2012
Firstpage
1
Lastpage
4
Abstract
We designed and fabricated 260 nm ultraviolet light emitting diodes that were pseudomorphically grown on AlN substrates. Thinning the substrates, roughening the emission surfaces, and encapsulating contributed to increasing the photon extraction efficiency by more than one order of magnitude.
Keywords
III-V semiconductors; aluminium compounds; light emitting diodes; substrates; surface roughness; AlN; photon extraction efficiency; pseudomorphic ultraviolet light emitting diodes; substrate thinning; surface roughening; wavelength 260 nm; Light emitting diodes; Photonics; Power generation; Rough surfaces; Substrates; Surface roughness; Surface waves; -wire and -dot devices; Light-emitting diodes; Quantum-well;
fLanguage
English
Publisher
ieee
Conference_Titel
Lester Eastman Conference on High Performance Devices (LEC), 2012
Conference_Location
Singapore
Print_ISBN
978-1-4673-2298-0
Electronic_ISBN
978-1-4673-2300-0
Type
conf
DOI
10.1109/lec.2012.6410967
Filename
6410967
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