Ultrawide-bandgap semiconductor AlN crystals: growth and applications

R Yu, G Liu, G Wang, C Chen, M Xu, H Zhou… - Journal of Materials …, 2021‏ - pubs.rsc.org
In recent years, ultrawide bandgap semiconductor materials represented by aluminum
nitride (AlN) have attracted worldwide attention due to their excellent high-frequency power …

State-of-the-art and prospective progress of growing AlN substrates by physical vapor transport

X Yao, B Zhang, H Hu, Y Wang, Z Kong, Y Wu… - Journal of Crystal …, 2023‏ - Elsevier
Abstract SiC, GaN, diamond, and AlN known as wide band-gap semiconductors, integrate
the advantages of microelectronics, optoelectronics, and power electronics. The ultra-wide …

[HTML][HTML] High electron mobility in AlN: Si by point and extended defect management

P Bagheri, C Quiñones-Garcia, D Khachariya… - Journal of Applied …, 2022‏ - pubs.aip.org
High room temperature n-type mobility, exceeding 300 cm 2/Vs, was demonstrated in Si-
doped AlN. Dislocations and CN− 1 were identified as the main compensators for AlN grown …

Bulk AlN growth by physical vapour transport

C Hartmann, A Dittmar, J Wollweber… - Semiconductor …, 2014‏ - iopscience.iop.org
The process technologies of AlN growth by physical vapour transport are reviewed in this
paper with a focus on the growth parameters, crucible materials, and the type of …

Thermal conductivity of single-crystalline AlN

R Rounds, B Sarkar, A Klump, C Hartmann… - Applied Physics …, 2018‏ - iopscience.iop.org
The thermal conductivity of AlN single crystals grown by physical vapor transport (PVT) and
hydride vapor phase epitaxy (HVPE) was measured in the range of 30 to 325 K by the 3ω …

Low dislocation density AlN on sapphire prepared by double sputtering and annealing

D Wang, K Uesugi, S **ao, K Norimatsu… - Applied Physics …, 2020‏ - iopscience.iop.org
Low dislocation density AlN on sapphire prepared by double sputtering and annealing -
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Preparation of deep UV transparent AlN substrates with high structural perfection for optoelectronic devices

C Hartmann, J Wollweber, S Sintonen, A Dittmar… - …, 2016‏ - pubs.rsc.org
In this paper, the optimal growth conditions during the physical vapour transport of bulk AlN
crystals are evaluated with regard to significantly increased deep UV transparency, while …

Low dark current deep UV AlGaN photodetectors on AlN substrate

L Gautam, J Lee, G Brown… - IEEE Journal of Quantum …, 2022‏ - ieeexplore.ieee.org
We report high quality, low dark current, deep Ultraviolet AlGaN/AlN Photodetectors on AlN
substrate. AlGaN based Photodetectors are grown and fabricated both on AlN and Sapphire …

High-quality AlN/sapphire templates prepared by thermal cycle annealing for high-performance ultraviolet light-emitting diodes

D Wang, K Uesugi, S **ao, K Norimatsu… - Applied Physics …, 2021‏ - iopscience.iop.org
Thermal cycle annealing (TCA) is introduced to accelerate the dislocation annihilation in
sputter-deposited AlN films on sapphire. Compared with constant temperature annealing …

Preparation of bulk AlN seeds by spontaneous nucleation of freestanding crystals

C Hartmann, J Wollweber, A Dittmar… - Japanese Journal of …, 2013‏ - iopscience.iop.org
Freestanding AlN single crystals are grown in a RF-heated furnace by physical vapor
transport (PVT). Three different growth regimes with growth temperatures between 2080 …