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Proceedings ArticleDOI

Effects of width of the quantum well on the shift in transition energy with operating current in In x Ga 1−x N/GaN quantum well diodes

TLDR
In this paper, the influence of the well width and the operating current on the transition energies of In x Ga 1−x N/GaN quantum well (QW) diodes have been studied through the self consistent solution of the Schrodinger and Poisson equations.
Abstract
The influence of the well width and the operating current on the transition energies of In x Ga 1−x N/GaN quantum well (QW) diodes have been studied through the self consistent solution of the Schrodinger and Poisson equations Large blue shift of the emission energy is observed due to the reduction in the well width With increase in the current density the emission peak shifts toward higher energy This shift, which is a major disadvantage of the lighting devices, is minimized by decreasing the width of the QW

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References
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Journal ArticleDOI

When group-III nitrides go infrared: New properties and perspectives

TL;DR: In this paper, the bandgap of InN was revised from 1.9 eV to a much narrower value of 0.64 eV, which is the smallest bandgap known to date.
Journal ArticleDOI

Efficiency droop in nitride-based light-emitting diodes

TL;DR: In this paper, the authors provide a snapshot of the current state of droop research, reviews currently discussed droop mechanisms, contextualizes them, and proposes a simple yet unified model for the LED efficiency droop.
Journal ArticleDOI

Evidence for nonlinear macroscopic polarization in III-V nitride alloy heterostructures

TL;DR: In this paper, the nonlinear polarization for nitride alloys of arbitrary composition was calculated, and the bound sheet charge induced by polarization discontinuity at the interfaces between different alloy and binary (epi) layers.
Journal ArticleDOI

Characteristics of InGaN-Based UV/Blue/Green/Amber/Red Light-Emitting Diodes

TL;DR: In this paper, a phase separation of the InGaN layer was clearly observed in the emission spectra, in which blue and red emission peaks appeared, in terms of the temperature dependence of the LEDs.
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