DocumentCode
520172
Title
Internal quantum efficiency measurement in InGaN/GaN UV LEDs with patterned sapphire substrate by photoluminescence and electroluminescence method
Author
Wang, C.H. ; Chiu, C.H. ; Ke, C.C. ; Kuo, H.C. ; Lu, T.C. ; Wang, S.C.
Author_Institution
Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu, Taiwan
fYear
2010
fDate
16-21 May 2010
Firstpage
1
Lastpage
2
Abstract
Internal quantum efficiency (IQE) of InGaN-based ultraviolet light emitting diodes (LED) grown on patterned sapphire substrate (PSS) and flat sapphire were measured by photoluminescence and electroluminescence methods. The IQE improvement of PSS LED is significant.
Keywords
III-V semiconductors; electroluminescence; gallium compounds; indium compounds; light emitting diodes; photoluminescence; sapphire; wide band gap semiconductors; InGaN-GaN; electroluminescence method; internal quantum efficiency measurement; patterned sapphire substrate; photoluminescence method; ultraviolet light emitting diodes; Biological materials; Biomedical optical imaging; Charge carrier density; Electroluminescence; Gallium nitride; Light emitting diodes; Optical sensors; Photoluminescence; Stimulated emission; Temperature;
fLanguage
English
Publisher
ieee
Conference_Titel
Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), 2010 Conference on
Conference_Location
San Jose, CA
Print_ISBN
978-1-55752-890-2
Electronic_ISBN
978-1-55752-890-2
Type
conf
Filename
5499736
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