Share Email Print
cover

Proceedings Paper

A trichromatic phosphor-free white light-emitting diode by using adhesive bonding scheme
Author(s): D. X. Chuai; X. Guo; B. L. Guan; J. L. Zhang; G. D. Shen
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

A trichromatic phosphor-free white light-emitting diode (LED) has been implemented by using adhesive bonding scheme. The device has been operated as a three-terminal device with independent electrical control of an AlGaInPbased red LED chip and a GaN-based dual-wavelength (blue and green) LED chip. As 25mA and 60mA was injected into the red and blue-green LED chips at room temperature respectively, white light emission could be observed with CIE chromaticity coordinates (0.3330,0.3241), correlated color temperature Tc=5467K and optical power Φe=2.223mW. The electroluminescence measurements also show that the emitted white light is composed of blue, green and red lights, centered at around 452nm, 517nm and 632nm. The fabrication and the electrical and optical performances of such white LED were described.

Paper Details

Date Published: 25 November 2009
PDF: 7 pages
Proc. SPIE 7635, Display, Solid-State Lighting, Photovoltaics, and Optoelectronics in Energy, 76350L (25 November 2009); doi: 10.1117/12.852061
Show Author Affiliations
D. X. Chuai, Beijing Univ. of Technology (China)
X. Guo, Beijing Univ. of Technology (China)
B. L. Guan, Beijing Univ. of Technology (China)
J. L. Zhang, Beijing Univ. of Technology (China)
G. D. Shen, Beijing Univ. of Technology (China)


Published in SPIE Proceedings Vol. 7635:
Display, Solid-State Lighting, Photovoltaics, and Optoelectronics in Energy
Heonsu Jeon; Chih-Chung Yang, Editor(s)

© SPIE. Terms of Use
Back to Top