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Journal ArticleDOI

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

Junqiao Wu
- 01 Jul 2009 - 
- Vol. 106, Iss: 1, pp 011101
TLDR
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.
Abstract
Wide-band-gap GaN and Ga-rich InGaN alloys, with energy gaps covering the blue and near-ultraviolet parts of the electromagnetic spectrum, are one group of the dominant materials for solid state lighting and lasing technologies and consequently, have been studied very well. Much less effort has been devoted to InN and In-rich InGaN alloys. A major breakthrough in 2002, stemming from much improved quality of InN films grown using molecular beam epitaxy, resulted in the bandgap of InN being revised from 1.9 eV to a much narrower value of 0.64 eV. This finding triggered a worldwide research thrust into the area of narrow-band-gap group-III nitrides. The low value of the InN bandgap provides a basis for a consistent description of the electronic structure of InGaN and InAlN alloys with all compositions. It extends the fundamental bandgap of the group III-nitride alloy system over a wider spectral region, ranging from the near infrared at ∼1.9 μm (0.64 eV for InN) to the ultraviolet at ∼0.36 μm (3.4 eV for GaN...

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Citations
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Journal ArticleDOI

Size dependent ultrasonic properties of InN nanowires

TL;DR: In this article, the ultrasonic properties of single crystalline indium nitride nanowires (InN NWs) were studied for wire size (diameter) 6-100nm at 300-K following the interaction potential model.
Journal ArticleDOI

Acoustic phonon scattering on the two-dimensional electron gas in wurtzite AlxGa1−xN/GaN/AlyGa1−yN double heterostructures: The ternary mixed crystal effect and size effect

TL;DR: In this paper, the ternary mixed crystal effect and size effect on the mobility of two-dimensional electron gas influenced by the scattering from acoustic phonons via deformation potential in a wurtzite Al x Ga 1− x N/GaN/Al y Ga 1 − y N double heterostructure at 77 K were discussed theoretically.
Dissertation

A study of the elastic and electronic properties of III-nitride semiconductors

TL;DR: Tanner et al. as discussed by the authors studied the elastic and electronic properties of III-nitride semiconductors and found that the properties of these materials are similar to those of polysilicon.
Journal ArticleDOI

Enhanced performance of GaN-based light-emitting diodes with InGaN/GaN superlattice barriers

TL;DR: In this paper, GaN-based multiple quantum well light-emitting diodes (LEDs) with conventional and superlattice barriers have been investigated numerically.
Journal ArticleDOI

Anomalous Rashba spin-orbit interaction in electrically controlled topological insulator based on InN/GaN quantum wells.

TL;DR: It is demonstrated that for InN/GaN quantum wells in a Hall bar geometry, the critical voltage for the topological phase transition depends distinctly on the width of the structure and a significant spin splitting of the edge states lying in the 2D band gap can be almost switched off by increasing the electric field in quantum wells only by a few percent.
References
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Journal ArticleDOI

Room-temperature ultraviolet nanowire nanolasers

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Journal ArticleDOI

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TL;DR: In this article, the authors present a comprehensive, up-to-date compilation of band parameters for the technologically important III-V zinc blende and wurtzite compound semiconductors.
Journal ArticleDOI

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Journal ArticleDOI

Band structure of indium antimonide

TL;DR: The band structure of InSb is calculated using the k ·. p perturbation approach and assuming that the conduction and valence band extrema are at k = 0 as mentioned in this paper.
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