A novel semiconductor white light emitting diode

Deming Liu; Lirong Huang; Mingju Nie

doi:10.1117/12.591291

28 April 2005 A novel semiconductor white light emitting diode

Deming Liu, Lirong Huang, Mingju Nie

Author Affiliations +

Proceedings Volume 5722, Physics and Simulation of Optoelectronic Devices XIII; (2005) https://doi.org/10.1117/12.591291
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

Semiconductor white sources used for illumination have attracted much attention because of the theoretical high electro-optical efficiency and potential huge application market. However the practical electro-optical efficiency for the white light-emitting diode (LED) is far from the theoretical predict. In this paper we propose a novel white light superluminescent diode (WSLD), which has two active layers, and double-wavelength reflection filter films are coated on the facets of the chip. With this design we can get superluminescent light emission at two peak-gain wavelengths, that is, blue light and green-yellow light, thus producing white light. It is shown that WSLD has much higher electro-optical efficiency and better performance than ordinary white LEDs. This novel WSLD will be a new way to realize high-flux and high-efficiency semiconductor white light source.

Citation Download Citation

Deming Liu, Lirong Huang, and Mingju Nie "A novel semiconductor white light emitting diode", Proc. SPIE 5722, Physics and Simulation of Optoelectronic Devices XIII, (28 April 2005); https://doi.org/10.1117/12.591291

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