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Proceedings Paper

Present performance of InGaN-based blue/green/yellow LEDs
Author(s): Shuji Nakamura
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Paper Abstract

InGaN single-quantum-well (SQW) structure blue/green light- emitting diodes (LEDs) were fabricated. At 20 mA, the output power and the external quantum efficiency of the blue SQW LEDs were 5 mW and 9.1 percent, respectively. Those of the green SQW LEDs will a 10 degree cone viewing angle was 10 cd at 20 mA. A white LED made by combining a blue InGaN SQW LED and yttrium aluminium garnet phosphor, which is less expensive than a white LED composed of three primary color LEDs, was developed.

Paper Details

Date Published: 4 April 1997
PDF: 10 pages
Proc. SPIE 3002, Light-Emitting Diodes: Research, Manufacturing, and Applications, (4 April 1997); doi: 10.1117/12.271048
Show Author Affiliations
Shuji Nakamura, Nichia Chemical Industries, Ltd. (United States)


Published in SPIE Proceedings Vol. 3002:
Light-Emitting Diodes: Research, Manufacturing, and Applications
E. Fred Schubert, Editor(s)

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