Results 71 to 80 of about 261,592 (260)

Understanding the role of threading dislocations on 4H-SiC MOSFET breakdown under high temperature reverse bias stress [PDF]

Nanotechnology, 2019
The origin of dielectric breakdown was studied on 4H-SiC MOSFETs that failed after three months of high temperature reverse bias stress. A local inspection of the failed devices demonstrated the presence of a threading dislocation (TD) at the breakdown ...
P. Fiorenza, M. Alessandrino, B. Carbone, C. Di Martino, A. Russo, M. Saggio, C. Venuto, E. Zanetti, F. Giannazzo, F. Roccaforte   +9 more
semanticscholar   +1 more source

Robust C–V Ratio Technique for Profiling Defects in Proton‐Irradiated 4H‐SiC

Advanced Electronic Materials, EarlyView.
A noise‐robust C–V ratio technique is introduced to profile radiation‐induced defects in proton‐irradiated 4H‐SiC Schottky diodes. By using analytical capacitance ratios instead of numerical differentiation, the method directly extracts trap‐density and effective trap‐energy profiles at room temperature.
Kibeom Kim, Sung Yun Woo, Jeong Hyun Moon, Young Jun Yoon, Jae Hwa Seo   +4 more
wiley   +1 more source

Effect of surface roughness on the nucleation of diamond on a 4H-SiC substrate

Functional Diamond
Diamond has the highest thermal conductivity among all materials and can be applied to overcome the heat dissipation problem in radio frequency devices based on the heterojunction of gallium nitride (GaN) and 4H silicon carbide (4H-SiC). However, growing
Hanchang Hu, Yuhao Zheng, Pan Deng, Tianqi Deng, Deren Yang, Xiaodong Pi   +5 more
doaj   +1 more source

Electrical charge state identification and control for the silicon vacancy in 4H-SiC

npj Quantum Information, 2019
Reliable single-photon emission is crucial for realizing efficient spin-photon entanglement and scalable quantum information systems. The silicon vacancy ($${V}_{{\rm{Si}}}$$VSi) in 4H-SiC is a promising single-photon emitter exhibiting millisecond spin ...
M. E. Bathen, A. Galeckas, J. Müting, H. M. Ayedh, U. Grossner, J. Coutinho, Y. Frodason, Lasse Vines   +7 more
semanticscholar   +1 more source

Toward Complete CO2 Electroconversion: Status, Challenges, and Perspectives

Advanced Energy Materials, EarlyView.
Electrocatalytic CO2 reduction and CO2 batteries face challenges in achieving complete CO2 conversion with high conversion rates and Faradaic efficiency simultaneously. Existing systems compromise one for the other with incomplete CO2 conversion and inefficiencies, hindering practical applications. This perspective highlights state‐of‐the‐art progress,
Changfan Xu, Ping Hong, Yulian Dong, Marc Robert, Guosheng Shao, Yong Lei   +5 more
wiley   +1 more source

Gallium Vanadium Oxide‐Based Free‐Standing Versatile Electrode for Next‐Generation Lithium and Sodium Energy Storage: Combined Experimental and First‐Principles Insights into Electrochemical Performance

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A gallium vanadium oxide (GVO)‐based free‐standing electrode is fabricated via a two‐step process involving a wet ball mill followed by thermal treatment and the surface‐engineered tape casting technique. The resulting GVO‐based free‐standing composite electrode has been successfully utilized for four distinct energy storage applications without any ...
Amarsingh Bhabu Kanagaraj, Abhishek Chandrakant Lokhande, Gautam Sharma, Ravindra N. Bulakhe, Ankit Kumar, Nirpendra Singh, Daniel S. Choi   +6 more
wiley   +1 more source

Enhancing Electrical and Interfacial Properties of BeO/4H‐SiC Structures with SiO2 Interlayer

Advanced Electronic Materials
Beryllium oxide (BeO) has exceptionally high thermal conductivity (330 W m−1·K−1), a large bandgap energy, and a high dielectric constant, making it an optimal dielectric for high‐power devices.
Sangoh Han, Dohwan Jung, Jonghyun Bae, Juyoung Chae, Haekyun Bong, Prakash R. Sultane, Christopher W. Bielawski, Jungwoo Oh   +7 more
doaj   +1 more source

Ultra‐High Strength and Environmentally Stable Fluorinated Solid‐State Ion‐Conductive Elastomers with Folding‐Paper‐Structured Triboelectric Nanogenerators for Wave Energy Harvesting

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, a polyurethane‐based fluorinated SICEs with excellent mechanical properties (7.35 MPa and 61.4 MJ m−3), conductivity (4.2 × 10−4 S cm−1), and harsh environmental resistance were prepared by a “three birds with one stone” strategy that combines multiple interactions with fluorine effects. The paper‐folding TENG is capable of harvesting not
Zequan Li, Fangyan Ou, Wei Tang, Fuqi Wang, Zhichao Zhang, Ting Xie, Chuang Ning, Wenyu Pan, Wei Gao, Shuangliang Zhao   +9 more
wiley   +1 more source

Effect of Various Defects on 4H-SiC Schottky Diode Performance and Its Relation to Epitaxial Growth Conditions

Micromachines, 2020
In this paper, the chemical vapor deposition (CVD) processing for 4H-SiC epilayer is investigated with particular emphasis on the defects and the noise properties.
Jinlan Li, Chenxu Meng, Le Yu, Yun Li, Feng Yan, Ping Han, Xiaoli Ji   +6 more
doaj   +1 more source

Crystal Plane Engineering of Zn Nanosheet Arrays Toward Robust Hybrid Capacitive Energy Storage

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work demonstrates a dual‐phase ZnCl2 concentration strategy dynamically switching Zn2+ solvation from [Zn(H2O)6]2+ to [ZnCl(H2O)5]+. The solvation shift steers the epitaxial growth of Zn nanosheet arrays, favoring the (002) crystal plane over (101).
Weijun Li, Zexi Yang, Shanliang Chen, Lan Jiang, Lin Wang, Qiao Liu, Weiyou Yang   +6 more
wiley   +1 more source