High speed surface acoustic wave and laterally excited bulk wave resonator based on single-crystal non-polar AlN film

T Lu, X Fang, S Zhang, Y Yuan, Y Ji, H Zhang… - Applied Physics …, 2023 - pubs.aip.org
One approach to extend the acoustic applications of aluminum nitride (AlN) in the GHz
frequency range is to take advantage of the piezoelectric performance and high acoustic …

Crystalline and optical properties of AlN films with varying thicknesses (0.4-10 µm) grown on sapphire by metalorganic chemical vapor deposition

ZC Feng, H Yang, J Yin, Y Liu, F Wu, J Dai, C Chen… - Thin Solid Films, 2023 - Elsevier
Structural and optical properties of AlN films grown on c-sapphire by metalorganic chemical
vapor deposition (MOCVD) with varied thicknesses (0.4-10 µm) are investigated. AlN with …

Enhanced structural and optical properties of high Al composition non-polar a-plane AlGaN epitaxial layer by optimizing growth flow sequence

R Fang, X Zhang, X Luo, S Wang, L Chen, S Xu… - Journal of Materials …, 2023 - Springer
The non-polar a-plane AlGaN epitaxial layer with an Al composition as high as 0.69 and
enhanced structural and optical properties was successfully grown by metal-organic …

Structural and optical properties of AlN sputtering deposited on sapphire substrates with various orientations

X Peng, J Sun, H Liu, L Li, Q Wang, L Wu… - Journal of …, 2022 - iopscience.iop.org
AlN thin films were deposited on c-, a-and r-plane sapphire substrates by the magnetron
sputtering technique. The influence of high-temperature thermal annealing (HTTA) on the …

Non-polar a-plane AlN epitaxial films on r-plane sapphire with greatly reduced defect densities obtained by high-temperature annealing

K Xing, G Xie, X Cheng, Y Zhang, Q Chen - Journal of Crystal Growth, 2022 - Elsevier
This study addresses the difficulty of obtaining high crystalline quality non-polar a-plane AlN
films grown epitaxially on r-plane sapphire substrates by applying a high-temperature …

Improved crystallinity and surface morphology of a-plane AlN grown on high temperature annealed AlN/sapphire template by pulsed-flow mode metal-organic vapor …

T Cai, Y Guo, Z Liu, R Zhang, D Wang… - Semiconductor …, 2023 - iopscience.iop.org
Preparing high quality non-polar aluminum nitride (AlN) templates is the key to improving
the performance of non-polar deep-ultraviolet light-emitting diodes. In this study, we …

The In-Plane-Two-Folders Symmetric a-Plane AlN Epitaxy on r-Plane Sapphire Substrate

F Zhang, L Huang, J Zhang, Z Liang, C Zhang, S Liu… - Symmetry, 2022 - mdpi.com
In the present work, a single-crystalline epitaxial nonpolar a-plane AlN film with in-plane two-
folder symmetries was successfully achieved on an r-plane sapphire substrate, by …

Effects of nitrogen flux and RF sputtering power on the preparation of crystalline a-plane AlN films on r-plane sapphire substrates

T Cai, Y Guo, Z Liu, R Zhang, B Xue… - Semiconductor …, 2022 - iopscience.iop.org
A-plane aluminum nitride (AlN) with high quality is crucial to fabricate high-performance non-
polar deep-ultraviolet optoelectronic devices. In this work, we prepared crystalline a-plane …

[HTML][HTML] Crystal orientation control of a-plane AlN films on r-plane sapphire fabricated by sputtering and high-temperature annealing

Y Ogawa, R Akaike, J Hayama, K Uesugi… - Journal of Applied …, 2024 - pubs.aip.org
Face-to-face annealed and sputter-deposited aluminum nitride (FFA Sp-AlN) has potential in
deep-ultraviolet light-emitting devices. Herein, the effects of the substrate off-cut angle (θ …

Optical and Structural Properties of Aluminum Nitride Epi-Films at Room and High Temperature

Y Yang, Y Liu, L Wang, S Zhang, H Lu, Y Peng, W Wei… - Materials, 2023 - mdpi.com
The high-quality aluminum nitride (AlN) epilayer is the key factor that directly affects the
performance of semiconductor deep-ultraviolet (DUV) photoelectronic devices. In this work …