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SPECK , James

Last name: SPECK

First name: James

November 22, 2021 (v1)

Journal article

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Defect Tolerance of Intersubband Transitions in Nonpolar GaN/(Al,Ga)N Heterostructures: A Path toward Low-Cost and Scalable Mid- to Far-Infrared Optoelectronics

Monavarian, Morteza Xu, Jiaming Khoury, Michel

We report on the impact of structural defects on mid-infrared intersubband (ISB) properties of GaN/(Al, Ga)N heterostructures grown by ammonia molecular beam epitaxy (NH 3 MBE). Twenty-period GaN/(Al, Ga)N multi-quantum-well (MQW) heterostructures are grown on co-loaded a-plane freestanding GaN substrates and heteroepitaxial a-plane GaN on...

Uploaded on: December 3, 2022
May 2020 (v1)

Journal article

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Development of efficient semipolar InGaN long wavelength light-emitting diodes and blue laser diodes grown on a high quality semipolar GaN/sapphire template

Li, Hongjian Zhang, Haojun Li, Panpan

Semipolar/nonpolar GaN-based optoelectronic devices become attractive due to several advantages such as alleviation of quantum-confinement Stark effect, high polarization ratio and optical gain. High performance semipolar/nonpolar InGaN light-emitting diodes (LEDs) and laser diodes (LDs) grown on semipolar/nonpolar bulk GaN substrate have been...

Uploaded on: December 4, 2022