A
Ashwin K. Rishinaramangalam
Researcher at University of New Mexico
Publications - 36
Citations - 948
Ashwin K. Rishinaramangalam is an academic researcher from University of New Mexico. The author has contributed to research in topics: Light-emitting diode & Diode. The author has an hindex of 17, co-authored 35 publications receiving 751 citations.
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Journal ArticleDOI
Threading defect elimination in GaN nanowires
TL;DR: In this article, the authors describe the elimination of threading dislocations (TDs) in GaN nanostructures and show that the nominal [0001] line direction of a TD changes when it enters a GaN structure and the dislocation then terminates at a sidewall facet.
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GaN nanowire light emitting diodes based on templated and scalable nanowire growth
S. D. Hersee,Michael N. Fairchild,Ashwin K. Rishinaramangalam,M.S. Ferdous,L. Zhang,P.M. Varangis,Brian S. Swartzentruber,A. Alec Talin +7 more
TL;DR: In this article, the operation GaN nanowire, light-emitting diodes that are based on a uniform and scalable Nanowire process was investigated and it was shown that the electroluminescence intensity grows superlinearly with current.
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Carrier Dynamics and Electro-Optical Characterization of High-Performance GaN/InGaN Core-Shell Nanowire Light-Emitting Diodes.
Mohsen Nami,Isaac Stricklin,Kenneth M. DaVico,Saadat Mishkat-Ul-Masabih,Ashwin K. Rishinaramangalam,S. R. J. Brueck,Igal Brener,Igal Brener,Daniel F. Feezell +8 more
TL;DR: High-performance electrically injected GaN/InGaN core-shell nanowire-based LEDs grown using selective-area epitaxy are demonstrated and their electro-optical properties are characterized.
Journal ArticleDOI
Nonpolar ${m}$ -Plane InGaN/GaN Micro-Scale Light-Emitting Diode With 1.5 GHz Modulation Bandwidth
Arman Rashidi,Morteza Monavarian,Andrew Aragon,Ashwin K. Rishinaramangalam,Daniel F. Feezell +4 more
TL;DR: In this paper, a high-speed nonpolar InGaN/GaN micro-scale light-emitting diode (LED) with a record electrical −3 dB modulation bandwidth of 1.5 GHz at a current density of 1 kA/cm2 was presented.
Journal ArticleDOI
High-Speed Nonpolar InGaN/GaN LEDs for Visible-Light Communication
Arman Rashidi,Morteza Monavarian,Andrew Aragon,Serdal Okur,Mohsen Nami,Ashwin K. Rishinaramangalam,Saadat Mishkat-Ul-Masabih,Daniel F. Feezell +7 more
TL;DR: In this paper, the authors demonstrate high-speed nonpolar InGaN/GaN LEDs with a peak emission wavelength between 455 and 465 nm on free-standing non-polar GaN substrates.