Original Paper

Color control in monolithic white light emitting diodes using a (Ga,In)N/GaN multiple quantum well light converter

  1. B. Damilano1,*,
  2. N. Trad1,2,
  3. J. Brault1,
  4. P. Demolon1,
  5. F. Natali1,3,
  6. J. Massies1

Article first published online: 23 JAN 2012

DOI: 10.1002/pssa.201100494

Issue

physica status solidi (a)

physica status solidi (a)

Volume 209, Issue 3, pages 465–468, March 2012

Additional Information

How to Cite

Damilano, B., Trad, N., Brault, J., Demolon, P., Natali, F. and Massies, J. (2012), Color control in monolithic white light emitting diodes using a (Ga,In)N/GaN multiple quantum well light converter. Phys. Status Solidi A, 209: 465–468. doi: 10.1002/pssa.201100494

Author Information

  1. 1

    CRHEA-CNRS, Rue B. Gregory, 06560 Valbonne, France

  2. 2

    Faculté des Sciences II-Fanar, Université Libanaise, B.P. 90656, Jdeidet El Metn, Lebanon

  3. 3

    Present address: MacDiarmid Institute for Advanced Materials, Nanotechnology, School of Chemical, Physical Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand

*Phone: +33 4 93 95 78 29, Fax: +33 4 93 95 83 61

Publication History

  1. Issue published online: 27 FEB 2012
  2. Article first published online: 23 JAN 2012
  3. Manuscript Accepted: 29 DEC 2011
  4. Manuscript Revised: 28 DEC 2011
  5. Manuscript Received: 1 AUG 2011

SEARCH

SEARCH BY CITATION

ARTICLE TOOLS

View Full Article (HTML) Get PDF (311K)

Keywords:

  • monolithic;
  • (Ga,In)N;
  • white light emitting diode

Abstract

This work reports the electroluminescence (EL) properties of monolithic light emitting diodes (LEDs) with an integrated (Ga,In)N/GaN light converter. The samples are constituted by a blue LED optically pumping a green–yellow emitting light converter. A simple model is proposed that accounts for the observed EL intensity ratio between the pump and the converter. The internal quantum efficiency (IQE) of the light converter has a crucial effect on the LED color. Experimental results regarding monolithic LEDs with a pump wavelength of 420 nm and a variable converter wavelength are analyzed. Depending on the light converter IQE the LED color can be tuned from blue to white.

View Full Article (HTML) Get PDF (311K)