Title :
260 nm pseudomorphic ultraviolet light emitting diodes with enhanced photon extraction efficiency
Author :
Jianfeng Chen ; Grandusky, J.R. ; Mendrick, M.C. ; Gibb, S.R. ; Moe, C. ; Wraback, M. ; Yong-Sung Kim ; Shawn-Yu Lin ; Schowalter, L.J.
Author_Institution :
Crystal IS, Green Island, NY, USA
Abstract :
We designed and fabricated 260 nm ultraviolet LEDs which demonstrated 20mW with greater than 1.5% WPE. Through surface roughening, substrate thinning and encapsulation, a 6× improvement in photon extraction efficiency has been achieved.
Keywords :
light emitting diodes; surface roughness; encapsulation; photon extraction efficiency; power 20 mW; pseudomorphic ultraviolet light emitting diode; substrate thinning; surface roughening; ultraviolet LED; wavelength 260 nm; Light emitting diodes; Optical surface waves; Photonics; Rough surfaces; Substrates; Surface roughness;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
