Data are presented on high-power AlGaInN flip-chip light-emitting diodes (FCLEDs). The FCLED is “flipped-over” or inverted compared to conventional AlGaInN light-emitting diodes (LEDs), and light is extracted through the transparent sapphire substrate. This avoids light absorption from the semitransparent metal contact in conventional epitaxial-up designs. The power FCLED has a large emitting area and an optimized contacting scheme allowing high current (200–1000 mA, operation with low forward voltages at 200 mA), and therefore higher power conversion (“wall-plug”) efficiencies. The improved extraction efficiency of the FCLED provides 1.6 times more light compared to top-emitting power LEDs and ten times more light than conventional small-area LEDs. FCLEDs in the blue wavelength regime peak) exhibit external quantum efficiency and wall-plug efficiency at 200 mA and with record light output powers of 400 mW at 1.0 A.
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28 May 2001
Research Article|
May 28 2001
High-power AlGaInN flip-chip light-emitting diodes Available to Purchase
J. J. Wierer;
J. J. Wierer
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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D. A. Steigerwald;
D. A. Steigerwald
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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M. R. Krames;
M. R. Krames
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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J. J. O’Shea;
J. J. O’Shea
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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M. J. Ludowise;
M. J. Ludowise
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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G. Christenson;
G. Christenson
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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Y.-C. Shen;
Y.-C. Shen
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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C. Lowery;
C. Lowery
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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P. S. Martin;
P. S. Martin
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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S. Subramanya;
S. Subramanya
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W. Götz;
W. Götz
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N. F. Gardner;
N. F. Gardner
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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R. S. Kern;
R. S. Kern
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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S. A. Stockman
S. A. Stockman
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
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J. J. Wierer
D. A. Steigerwald
M. R. Krames
J. J. O’Shea
M. J. Ludowise
G. Christenson
Y.-C. Shen
C. Lowery
P. S. Martin
S. Subramanya
W. Götz
N. F. Gardner
R. S. Kern
S. A. Stockman
LumiLeds Lighting, 370 W. Trimble Road, San Jose, California 95131
Appl. Phys. Lett. 78, 3379–3381 (2001)
Article history
Received:
February 19 2001
Accepted:
April 02 2001
Citation
J. J. Wierer, D. A. Steigerwald, M. R. Krames, J. J. O’Shea, M. J. Ludowise, G. Christenson, Y.-C. Shen, C. Lowery, P. S. Martin, S. Subramanya, W. Götz, N. F. Gardner, R. S. Kern, S. A. Stockman; High-power AlGaInN flip-chip light-emitting diodes. Appl. Phys. Lett. 28 May 2001; 78 (22): 3379–3381. https://doi.org/10.1063/1.1374499
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