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Lighting for the 21st century with laser diodes based on non-basal plane orientations of GaN

Published online by Cambridge University Press:  24 July 2015

Leah Y. Kuritzky  and
James S. Speck
Leah Y. Kuritzky*
Affiliation:
Materials Department, University of California, Santa Barbara, CA 93106, USA
James S. Speck
Affiliation:
Materials Department, University of California, Santa Barbara, CA 93106, USA
*
Address all correspondence to Leah Y. Kuritzky atlkuritzky@umail.ucsb.edu
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Abstract

More than two decades of III-N materials research has led to the production of visible spectrum commercial light-emitting diodes (LEDs) and laser diodes (LDs). Commercial c-plane LEDs are currently limited by efficiency droop which describes the decline in efficiency with increasing input current density. Laser-based sources, however, provide peak efficiencies at much higher current densities and may circumvent efficiency droop limitations. The potential benefits of non-basal plane (NBP) orientations could accelerate the evolution of solid-state lighting from LED to LD sources. Here, we review the progress in long-wavelength (440–590 nm) NBP quantum well LD research and discuss applications in solid-state lighting, visible light communication and smart lighting.

Type
Prospective Articles
Information
MRS Communications , Volume 5 , Issue 3 , September 2015 , pp. 463 - 473
Copyright
Copyright © Materials Research Society 2015 

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