TY - GEN
T1 - Analysis of photon capturing in light emitting diode with different surfaces
AU - Leung, Sai Yuen
AU - Chan, Michael C.Y.
AU - Kwok, Paul C.K.
AU - Li, E. Herbert
N1 - Publisher Copyright:
© 1999 IEEE.
PY - 1999
Y1 - 1999
N2 - The external efficiency of today's LED is still very small, typically less than 10% [l], although the internal efficiency can be very high (-100%) [2]. This is because when light have been generated in the active layer inside the diode, they must be liberated to the outside in order to be of any use. Because the refractive index of semiconductor material is usually quite high (-3.5), more than three times as air, therefore the critical angle 8, given by Snell's law (from semiconductor to air) is very small, typically - 17".
AB - The external efficiency of today's LED is still very small, typically less than 10% [l], although the internal efficiency can be very high (-100%) [2]. This is because when light have been generated in the active layer inside the diode, they must be liberated to the outside in order to be of any use. Because the refractive index of semiconductor material is usually quite high (-3.5), more than three times as air, therefore the critical angle 8, given by Snell's law (from semiconductor to air) is very small, typically - 17".
UR - http://www.scopus.com/inward/record.url?scp=0033351255&partnerID=8YFLogxK
U2 - 10.1109/CLEOPR.1999.817963
DO - 10.1109/CLEOPR.1999.817963
M3 - Conference contribution
AN - SCOPUS:0033351255
T3 - CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
SP - 1044
EP - 1045
BT - CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
T2 - 1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
Y2 - 30 August 1999 through 3 September 1999
ER -