III-Nitride nanowire optoelectronics

S Zhao, HPT Nguyen, MG Kibria, Z Mi - Progress in Quantum Electronics, 2015 - Elsevier
Group-III nitride nanowire structures, including GaN, InN, AlN and their alloys, have been
intensively studied in the past decade. Unique to this material system is that its energy …

Efficiency models for GaN-based light-emitting diodes: Status and challenges

J Piprek - Materials, 2020 - mdpi.com
Light-emitting diodes (LEDs) based on Gallium Nitride (GaN) have been revolutionizing
various applications in lighting, displays, biotechnology, and other fields. However, their …

A red-emitting micrometer scale LED with external quantum efficiency> 8%

A Pandey, Y **ao, M Reddeppa, Y Malhotra… - Applied Physics …, 2023 - pubs.aip.org
Significant efforts are being put into the development of efficient micrometer-scale light
emitting diodes (LEDs) for future display technologies due to their marked benefits over …

Controlling electron overflow in phosphor-free InGaN/GaN nanowire white light-emitting diodes

HPT Nguyen, K Cui, S Zhang, M Djavid, A Korinek… - Nano …, 2012 - ACS Publications
We have investigated for the first time the impact of electron overflow on the performance of
nanowire light-emitting diodes (LEDs) operating in the entire visible spectral range, wherein …

Breaking the carrier injection bottleneck of phosphor-free nanowire white light-emitting diodes

HPT Nguyen, S Zhang, AT Connie, MG Kibria… - Nano …, 2013 - ACS Publications
We have examined the carrier injection process of axial nanowire light-emitting diode (LED)
structures and identified that poor carrier injection efficiency, due to the large surface …

III-nitride nanowires for emissive display technology

V Vignesh, Y Wu, SU Kim, JK Oh… - Journal of Information …, 2024 - Taylor & Francis
The field of III-nitride (InGaN) nanowire micro light-emitting diode (µ-LED) displays is rapidly
expanding and holds great promise, thanks to their chemical stability and outstanding …

On the temperature dependence of electron leakage from the active region of GaInN/GaN light-emitting diodes

DS Meyaard, Q Shan, Q Dai, J Cho… - Applied Physics …, 2011 - pubs.aip.org
Reduction in the light-output power in GaN-based light-emitting diodes (LEDs) with
increasing temperature is a well-known phenomenon. In this work, temperature dependent …

How to decide between competing efficiency droop models for GaN-based light-emitting diodes

J Piprek - Applied Physics Letters, 2015 - pubs.aip.org
GaN-based light-emitting diodes (LEDs) exhibit a strong efficiency droop with higher current
injection, which has been mainly attributed to Auger recombination and electron leakage …

Droop improvement in blue InGaN/GaN multiple quantum well light-emitting diodes with indium graded last barrier

C Sheng **a, ZM Simon Li, W Lu, Z Hua Zhang… - Applied Physics …, 2011 - pubs.aip.org
Blue InGaN/GaN multiple quantum well light-emitting diodes with the conventional and
graded last barriers (GLB) are numerically investigated. When the last GaN barrier is …

Enhanced performance of AlGaN-based deep ultraviolet light-emitting diodes with chirped superlattice electron deceleration layer

J Hu, J Zhang, Y Zhang, H Zhang, H Long… - Nanoscale research …, 2019 - Springer
AlGaN-based deep ultraviolet (DUV) light-emitting diodes (LEDs) suffer from electron
overflow and insufficient hole injection. In this paper, novel DUV LED structures with …