A review of ultrawide bandgap materials: properties, synthesis and devices

M Xu, D Wang, K Fu, DH Mudiyanselage… - Oxford Open …, 2022 - academic.oup.com
Ultrawide bandgap (UWBG) materials such as diamond, Ga2O3, hexagonal boron nitride (h-
BN) and AlN, are a new class of semiconductors that possess a wide range of attractive …

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 …

The photoresponse behavior of a Schottky structure with a transition metal oxide-doped organic polymer (RuO2:PVC) interface

H Elamen, Y Badali, M Ulusoy, Y Azizian-Kalandaragh… - Polymer Bulletin, 2024 - Springer
The RuO2-doped organic polymer composite structure was used as the interface to study
the photodiode properties of a Schottky structure. Some basic electrical and optoelectrical …

A possible origin of the large leakage current in ferroelectric Al1− x Sc x N films

J Kataoka, SL Tsai, T Hoshii… - Japanese Journal of …, 2021 - iopscience.iop.org
Leakage current analysis on 50 nm thick ferroelectric Al 0.78 Sc 0.22 N films with TiN
electrodes has been performed. The electron conduction followed Schottky emission with an …

Field cycling behavior and breakdown mechanism of ferroelectric Al0. 78Sc0. 22N films

SL Tsai, T Hoshii, H Wakabayashi… - Japanese Journal of …, 2022 - iopscience.iop.org
The effects of field cycling of Al 0.78 Sc 0.22 N capacitors on ferroelectric properties are
investigated. In the first hundreds of switching cycles, the reduction in the switching voltage …

[HTML][HTML] Below bandgap photoluminescence of an AlN crystal: Co-existence of two different charging states of a defect center

Q Zhou, Z Zhang, H Li, S Golovynskyi, X Tang, H Wu… - Apl Materials, 2020 - pubs.aip.org
The below bandgap optical transitions of an aluminum nitride (AlN) crystal grown on a
tungsten (W) substrate by physical vapor transport (PVT) are investigated by below-bandgap …

Analysis of residual thermal stress for AlN crystal growth by PVT

ZY Qin, WL Li, ZH Sun, JH Ji, HL Wu, L Jin - Vacuum, 2023 - Elsevier
The residual thermal stress of AlN grown by the PVT method during the cooling process is
investigated. Firstly, the stress at the AlN interface is evaluated by measuring Raman …

Temperature-dependent electrical characteristics of neutron-irradiated GaN Schottky barrier diodes

M Zhu, Y Ren, L Zhou, J Chen, H Guo, L Zhu… - Microelectronics …, 2021 - Elsevier
Temperature-dependent electrical characteristics were explicitly investigated for a 400-μm
diameter neutron-irradiated (NI) GaN Schottky barrier diode (SBD). Based on CV …

Impact of the interface vacancy on Schottky barrier height for Au/AlN polar interfaces

H Guo, Z Zhang, Y Guo, Z Gao, R Zheng, H Wu - Applied Surface Science, 2020 - Elsevier
Schottky barrier heights (SBHs) at the Au/AlN interface are systemically studied by density
functional calculations. Two types of interfaces, including Al-and N-polar interfaces, are …

[HTML][HTML] Boosting the photodetection of bulk aluminum nitride crystals-based MSM device through an additional electrode

Y Cao, Z Fan, Z Qin, L Jin, B Li, Z Sun, H Wu - APL Materials, 2023 - pubs.aip.org
Aluminum nitride (AlN) exhibits excellent high-temperature resistance, chemical stability,
and a wide bandgap, making it a prime candidate material for deep ultraviolet detectors. In …