Transport properties of polarization-induced 2D electron gases in epitaxial AlScN/GaN heterojunctions

J Casamento, TS Nguyen, Y Cho, C Savant… - Applied Physics …, 2022‏ - pubs.aip.org
AlScN is attractive as a lattice-matched epitaxial barrier layer for incorporation in GaN high
electron mobility transistors due to its large dielectric constant and polarization. The …

Scattering analysis of two-dimensional electrons in AlGaN/GaN with bulk related parameters extracted by simple parallel conduction extraction method

SB Lisesivdin, A Yildiz, N Balkan, M Kasap… - Journal of Applied …, 2010‏ - pubs.aip.org
We carried out the temperature (22–350 K) and magnetic field (0.05 and 1.4 T) dependent
Hall mobility and carrier density measurements on Al 0.22 Ga 0.78 N/GaN heterostructures …

Dielectric function and optical properties of Al-rich AlInN alloys pseudomorphically grown on GaN

E Sakalauskas, H Behmenburg, C Hums… - Journal of Physics D …, 2010‏ - iopscience.iop.org
A detailed discussion of the optical properties of Al-rich Al 1− x In x N alloy films is
presented. The (0 0 0 1)-oriented layers with In contents between x= 0.143 and x= 0.242 …

Electron mobility, Hall scattering factor, and sheet conductivity in AlGaN/AlN/GaN heterostructures

A Asgari, S Babanejad, L Faraone - Journal of Applied Physics, 2011‏ - pubs.aip.org
In this paper, we present a study of the effect of temperature on the two-dimensional electron
mobility, Hall scattering factor, and sheet conductivity, using a fully numerical calculation in …

Simulation study on electrical characteristic of AlGaN/GaN high electron mobility transistors with AlN spacer layer

NM Shrestha, Y Li, EY Chang - Japanese Journal of Applied …, 2014‏ - iopscience.iop.org
Two-dimensional electron gas (2DEG) property is crucial for the performance of GaN-based
high electron mobility transistors (HEMTs). The 2DEG-related concentration and mobility can …

Polarization field engineering of GaN/AlN/AlGaN superlattices for enhanced thermoelectric properties

A Sztein, JE Bowers, SP DenBaars… - Applied Physics …, 2014‏ - pubs.aip.org
A novel polarization field engineering based strategy to simultaneously achieve high
electrical conductivity and low thermal conductivity in thermoelectric materials is …

[HTML][HTML] Electronic Properties of Group-III Nitride Semiconductors and Device Structures Probed by THz Optical Hall Effect

N Armakavicius, P Kühne, A Papamichail, H Zhang… - Materials, 2024‏ - mdpi.com
Group-III nitrides have transformed solid-state lighting and are strategically positioned to
revolutionize high-power and high-frequency electronics. To drive this development forward …

Vacancy-type defects in AlInN/AlN/GaN structures probed by monoenergetic positron beam

A Uedono, Y Kimura, T Hoshii, K Kakushima… - Journal of Applied …, 2023‏ - pubs.aip.org
Vacancy-type defects in AlInN (10 nm)/AlN (1–2 nm)/GaN were probed by using a positron
annihilation technique. The crystal quality of the AlInN layer and atomic diffusion near …

Performance analysis of gallium nitride-based DH-HEMT with polarization-graded AlGaN back-barrier layer

S Kalita, B Awadhiya, P Changmai - Applied Physics B, 2023‏ - Springer
In this paper, polarization-graded AlGaN back-barrier nanolayer has been introduced to
improve the DC and RF parameters of gallium nitride-based high electron mobility …

Mobility limiting scattering mechanisms in nitride-based two-dimensional heterostructures with the InGaN channel

S Gökden, R Tülek, A Teke, JH Leach… - Semiconductor …, 2010‏ - iopscience.iop.org
The scattering mechanisms limiting the carrier mobility in AlInN/AlN/InGaN/GaN two-
dimensional electron gas (2DEG) heterostructures were investigated and compared with …