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

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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.

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Acknowledgments

We acknowledge funding from the Solid State Lighting and Energy Electronics Center at UCSB. We thank Joseph Nedy for his careful reading of this manuscript and his helpful comments. L. K. acknowledges an NSF Graduate Research Fellowship under Grant No. DGE-1144085.

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  1. Materials Department, University of California, Santa Barbara, CA, 93106, USA

    Leah Y. Kuritzky & James S. Speck

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  1. Leah Y. Kuritzky
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Correspondence to Leah Y. Kuritzky.

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This author was a member of the Advisory Board of this journal during the review and decision stage. Advisory Board members do not sit on the editorial board, and so fall under the “Non-Editors” section of the Materials Research Society policy on review and publication of manuscripts to be found at http://www.mrs.org/editor-manuscripts/.

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Kuritzky, L.Y., Speck, J.S. Lighting for the 21st century with laser diodes based on non-basal plane orientations of GaN. MRS Communications 5, 463–473 (2015). https://doi.org/10.1557/mrc.2015.53

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