Ultrawide-bandgap semiconductors: An overview

MH Wong, O Bierwagen, RJ Kaplar… - Journal of Materials …, 2021 - Springer
Ultrawide-bandgap (UWBG) semiconductor technology is presently going through a
renaissance exemplified by advances in material-level understanding, extensions of known …

Germicidal ultraviolet LEDs: A review of applications and semiconductor technologies

CJ Zollner, SP DenBaars, JS Speck… - Semiconductor …, 2021 - iopscience.iop.org
Ultraviolet light emitting diodes (UV LEDs) are one of the most promising technologies for
preventing future pandemics, improving health outcomes, and disinfecting water sources …

The 2020 UV emitter roadmap

H Amano, R Collazo, C De Santi… - Journal of Physics D …, 2020 - iopscience.iop.org
Solid state UV emitters have many advantages over conventional UV sources. The (Al, In,
Ga) N material system is best suited to produce LEDs and laser diodes from 400 nm down to …

Continuous-wave lasing of AlGaN-based ultraviolet laser diode at 274.8 nm by current injection

Z Zhang, M Kushimoto, A Yoshikawa… - Applied Physics …, 2022 - iopscience.iop.org
We demonstrated continuous-wave lasing of an AlGaN-based ultraviolet laser diode,
fabricated on a single-crystal AlN substrate when operating at 5 C. The threshold current …

[HTML][HTML] Review on the progress of AlGaN-based ultraviolet light-emitting diodes

Y Chen, J Ben, F Xu, J Li, Y Chen, X Sun, D Li - Fundamental Research, 2021 - Elsevier
AlGaN-based materials have exhibited considerable potential for fabricating ultraviolet (UV)
light-emitting diodes (LEDs) owing to their direct, wide, and adjustable energy bandgap …

First-principles calculations of structural, electrical, and optical properties of ultra-wide bandgap (AlGa)O alloys

JB Varley - Journal of Materials Research, 2021 - Springer
Alloys between Ga 2 O 3 and Al 2 O 3 (AGO) present a rich material space exhibiting
numerous structural phases with unique optoelectronic properties that make them attractive …

[HTML][HTML] The role of chemical potential in compensation control in Si: AlGaN

S Washiyama, P Reddy, B Sarkar… - Journal of Applied …, 2020 - pubs.aip.org
Reduction in compensation in Si-doped Al-rich AlGaN is demonstrated via chemical
potential control (CPC). The chemical potentials and the resulting formation energies of …

High-temperature performance of AlN MESFETs with epitaxially grown n-type AlN channel layers

M Hiroki, Y Taniyasu… - IEEE Electron Device …, 2022 - ieeexplore.ieee.org
We fabricated AlN metal semiconductor field effect transistors (MESFETs) with an epitaxially
grown n-type AlN channel layer and characterized the temperature dependence of their …

Status of the growth and fabrication of AlGaN-based UV laser diodes for near and mid-UV wavelength

R Kirste, B Sarkar, P Reddy, Q Guo, R Collazo… - Journal of Materials …, 2021 - Springer
In this article, the development of mid-UV laser diodes based on the AlGaN materials system
is reviewed. The targeted wavelength for these lasers covers the range from 200 to 350 nm …

[HTML][HTML] Recent advances in fabricating wurtzite AlN film on (0001)-plane sapphire substrate

H Wu, K Zhang, C He, L He, Q Wang, W Zhao, Z Chen - Crystals, 2021 - mdpi.com
Ultrawide bandgap (UWBG) semiconductor materials, with bandgaps far wider than the 3.4
eV of GaN, have attracted great attention recently. As a typical representative, wurtzite …