Results 31 to 40 of about 29,046 (313)

First-principles calculations of electronic and optical properties of aluminum-doped β-Ga2O3 with intrinsic defects

Results in Physics, 2017
In this manuscript, the effects of intrinsic defects on the electronic and optical properties of aluminum-doped β-Ga2O3 are investigated with first-principles calculations.
Xiaofan Ma, Yuming Zhang, Linpeng Dong, Renxu Jia   +3 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Improving the Manufacturability of Low-Temperature GaN Ohmic Contact by Blocking the Fluorine Ion Injection

IEEE Journal of the Electron Devices Society
Stabilizing the CMOS-compatible low-temperature Au-free GaN Ohmic contact is a critical work that determines the performance and yield of GaN power HEMTs in mass production.
Tong Liu, Xiangdong Li, Zhanfei Han, Lili Zhai, Junbo Wang, Shuzhen You, Jincheng Zhang, Jie Zhang, Zhibo Cheng, Yuanhang Zhang, Qiushuang Li, Yue Hao   +11 more
doaj   +1 more source

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source

Van der Waals β-Ga2O3 thin films on polycrystalline diamond substrates

Nature Communications
The self-heating effect in wide bandgap semiconductor devices makes epitaxial Ga2O3 on diamond substrates crucial for thermal management. However, the lack of wafer-scale single-crystal diamond and severe lattice mismatch limit its industrial application.
Jing Ning, Zhichun Yang, Haidi Wu, Xinmeng Dong, Yaning Zhang, Yufei Chen, Xinbo Zhang, Dong Wang, Yue Hao, Jincheng Zhang   +9 more
doaj   +1 more source

Optimization of Low-Voltage p-GaN Gate HEMTs for High-Efficiency Secondary Power Conversion

Micromachines
The explosive demand for high-performance secondary power sources in artificial intelligence (AI) has brought significant opportunities for low-voltage GaN devices.
Lili Zhai, Xiangdong Li, Jian Ji, Lu Yu, Liang Chen, Yaoming Chen, Haonan Xia, Zhanfei Han, Junbo Wang, Xi Jiang, Song Yuan, Tao Zhang, Yue Hao, Jincheng Zhang   +13 more
doaj   +1 more source

Ultra High Q and Widely Tunable Mie Resonance Nanofilter at Telecom Wavelengths

IEEE Photonics Journal, 2021
Mie resonators offer a novel way for the subwavelength localization of light, showing large local field enhancement without metal optical absorption. In this paper, an ultra-high quality factor Q and widely tunable Mie resonance nanofilter at telecom ...
Danyang Yao, Yong Zhang, Yan Huang, Yan Liu, Genquan Han, Yue Hao   +5 more
doaj   +1 more source

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source

Research on the epitaxial direction control and mechanism of polycrystalline diamond grains

Functional Diamond
The control of diamond film growth is crucial for the application of diamond films. In this article, different diamond film samples were prepared by adding nitrogen and oxygen in different proportions during the growth process.
Li Junpeng, Ren Zeyang, Zhang Jinfeng, Zhang Jincheng, Su Kai, Meng Jintao, Zhu Liaoliang, Li Yijiang, Chen Junfei, Wang Hanxue, Hao Yue   +10 more
doaj   +1 more source

A wide bandgap plasmonic Bragg reflector

Optics Express, 2008
Surface plasmon polaritons (SPPs) Bragg reflector with more excellent optical properties are investigated numerically. By introducing a finite array of periodic grooves on the two surfaces of metal-insulator-metal (MIM) waveguide, we fulfill the periodical changes of effective refractive index, which leads to the photonic band gap (PBG).
Jian-Qiang, Liu, Ling-Ling, Wang, Meng-Dong, He, Wei-Qing, Huang, Dianyuan, Wang, B S, Zou, Shuangchun, Wen   +6 more
openaire   +2 more sources