Enhanced heat dissipation in gallium nitride-based light-emitting diodes by piezo-phototronic effect

Q Guo, D Li, Q Hua, K Ji, W Sun, W Hu, ZL Wang - Nano Letters, 2021 - ACS Publications
As a new generation of light sources, GaN-based light-emitting diodes (LEDs) have wide
applications in lighting and display. Heat dissipation in LEDs is a fundamental issue that …

Experimental and theoretical study of electrical, thermal, and optical characteristics of InGaN/GaN high‐power flip‐chip LEDs

AE Chernyakov, KA Bulashevich… - … status solidi (a), 2013 - Wiley Online Library
Comprehensive analysis of current spreading, temperature distribution, and near‐field
electroluminescence (EL) of high‐power flip‐chip InGaN/GaN light‐emitting diodes (LEDs) …

Infrared micro-thermography of high-power AlInGaN LEDs using high emissivity (black) in IR and transparent in the visible spectral region coating

A Aladov, A Chernyakov, A Zakgeim - Quantitative InfraRed …, 2019 - Taylor & Francis
For modern high-power LEDs, self-heating becomes a critical factor determining their
functional characteristics and lifetime. For large-area LEDs with a complex structure, it is …

High power blue AlGaInN LED chips with two‐level metallization

DA Zakheim, GV Itkinson, MV Kukushkin… - … status solidi c, 2015 - Wiley Online Library
In this paper, we report on the development and fabrication of high power LED chips based
on AlGaInN. These chips are meant for flip‐chip mounting and have novel contact pad …

An improvement on the junction temperature measurement of light-emitting diodes by using the peak shift method compared with the forward voltage method

SM He, XD Luo, B Zhang, L Fu, LW Cheng… - Chinese Physics …, 2012 - iopscience.iop.org
The junction temperature of red, green and blue high power light emitting diodes (LEDs) is
measured by using the emission peak shift method and the forward voltage method. Both …

Mathematical simulation of heat transfer processes at the maximum possible electrical loads in typical light-emitting diodes

OM Rudenko, PA Strizhak - EPJ Web of Conferences, 2014 - epj-conferences.org
The physical and mathematical models for prognostic research of possible thermal
operating modes of typical light-emitting diodes (LED) at critical electrical loads have been …

High-power AlGaInN LED chips with two-level metallization

DA Zakheim, GV Itkinson, MV Kukushkin, LK Markov… - Semiconductors, 2014 - Springer
A high-power AlGaInN light-emitting flip-chip crystal with a new configuration of contact pads
is developed and fabricated. The implementation of a two-level metallization scheme with a …

A superior design for high power GaN-based light-emitting diode packages

KY Liao, SH Tseng - Solid-State Electronics, 2015 - Elsevier
The radiation performance of light-emitting diodes with hemispherical encapsulated lenses
at the packaging level is analyzed by a Monte Carlo ray-tracing simulation. Based on optical …

Experimental study of electroluminescence and temperature distribution in high-power AlGaInN LEDs & LED arrays

AE Chernyakov, AV Aladov, IA Kalashnikov… - Microelectronics …, 2017 - Elsevier
Comprehensive analysis of current spreading, temperature distribution, and near-field
electroluminescence of high-power “face-up” AlInGaN LEDs and LED Arrays was performed …

Determination of the critical conditions of heat transfer in a LED

OM Rudenko, PA Strizhak - EPJ Web of Conferences, 2015 - epj-conferences.org
The mathematical and physical models of heat transfer were developed in order to
determine the critical conditions of heat transfer in typical light-emitting diodes (LED) …