A Decade of Nonpolar and Semipolar III‐Nitrides: A Review of Successes and Challenges

M Monavarian, A Rashidi, D Feezell - physica status solidi (a), 2019 - Wiley Online Library
The performance of III‐nitride devices is degraded by polarization in a wurtzite crystal
structure. Nonpolar and semipolar III‐nitrides have been extensively studied since the early …

Carrier dynamics and electro-optical characterization of high-performance GaN/InGaN core-shell nanowire light-emitting diodes

M Nami, IE Stricklin, KM DaVico… - Scientific reports, 2018 - nature.com
In this work, we demonstrate high-performance electrically injected GaN/InGaN core-shell
nanowire-based LEDs grown using selective-area epitaxy and characterize their electro …

Electrically injected GHz-class GaN/InGaN core–shell nanowire-based μLEDs: carrier dynamics and nanoscale homogeneity

M Nami, A Rashidi, M Monavarian… - Acs …, 2019 - ACS Publications
We present the first demonstration of RF characteristics of electrically injected GaN/InGaN
core–shell nanowire-based micro light-emitting diodes (μLEDs) for μLED displays and …

Scalable top-down approach tailored by interferometric lithography to achieve large-area single-mode GaN nanowire laser arrays on sapphire substrate

M Behzadirad, M Nami, N Wostbrock… - ACS …, 2018 - ACS Publications
GaN nanowires are promising for optical and optoelectronic applications because of their
waveguiding properties and large optical band gap. However, developing a precise …

Ultraviolet light‐emitting diode using nonpolar AlGaN core–shell nanowire heterostructures

YH Ra, S Kang, CR Lee - Advanced Optical Materials, 2018 - Wiley Online Library
Highly efficient nonpolar AlGaN nanowire ultraviolet light‐emitting diode is developed,
wherein core–shell AlGaN multiple quantum well layers are incorporated in the nonpolar …

Analysis of polarization-dependent light extraction and effect of passivation layer for 230-nm AlGaN nanowire light-emitting diodes

YK Ooi, C Liu, J Zhang - IEEE Photonics Journal, 2017 - ieeexplore.ieee.org
This paper investigates the polarization-dependent light extraction efficiency (η extraction)
and the effect of passivation layer for AlGaN-based nanowire (NW) deep-ultraviolet (DUV) …

Nanowire optoelectronics

Z Wang, B Nabet - Nanophotonics, 2015 - degruyter.com
Semiconductor nanowires have been used in a variety of passive and active optoelectronic
devices including waveguides, photodetectors, solar cells, light-emitting diodes (LEDs) …

Tailoring the morphology and luminescence of GaN/InGaN core–shell nanowires using bottom-up selective-area epitaxy

M Nami, RF Eller, S Okur… - …, 2016 - iopscience.iop.org
Controlled bottom-up selective-area epitaxy (SAE) is used to tailor the morphology and
photoluminescence properties of GaN/InGaN core–shell nanowire arrays. The nanowires …

Subliming GaN into ordered nanowire arrays for ultraviolet and visible nanophotonics

S Sergent, B Damilano, S Vézian, S Chenot… - ACS …, 2019 - ACS Publications
We report on the fabrication of ordered arrays of InGaN/GaN nanowire quantum disks by a
top-down selective-area sublimation method. Using a combination of two-dimensional …

Coupling of coherent misfit strain and composition distributions in core–shell Ge/Ge1-xSnx nanowire light emitters

AC Meng, MR Braun, Y Wang, CS Fenrich, M Xue… - Materials Today …, 2019 - Elsevier
Abstract Core–shell Ge/Ge 1-x Sn x nanowires exhibit strong room temperature light
emission under optical pumping in photoluminescence compared with Ge as a …