Xiang Zheng

Electric field reconfiguration in W/ β -Ga2O3 Schottky barrier diodes under negative bias stress

Jiamin Liao, Xiang Zheng, Yibo Wang, Xiaole Jia et autres

In this work, the characteristics of W/Ga2O3 Schottky barrier diodes with Al2O3 passivation under negative bias stress (NBS) are investigated. Interestingly, the NBS treatment yields a significant 91% reduction in reverse leakage current (Ileakage) and a 29.7% enhancement in breakdown voltage (Vbreakdown), …

cn (code pays fourni par la source)

Microporous Collapse Engineering Enables Concurrent Optical Transparency and Mechanical Robustness in Mullite Glass‐Ceramics via Low‐Temperature Spark Plasma Sintering

Shuang Liu, Zhe Hao, Yuanmeng Ji, Xiang Zheng et autres

ABSTRACT The intrinsic trade‐off between optical transparency and mechanical robustness represents a fundamental challenge in glass‐ceramic materials design. Herein, we demonstrate that engineering microporous collapse pathways in FAU zeolite precursors enables the fabrication of mullite glass‐ceramics with exceptional concurrent optical and mechanical …

cn (code pays fourni par la source)

Annealing-Driven Strain-Relaxation Transition and Its Direct Impact on Transport in Heteroepitaxial β -Ga₂O₃ MOSFETs

Chunxiao Yu, Y N Wu, Yibo Wang, Bochang Li et autres

cn (code pays fourni par la source)

Analysis of Heat Diffusion in GaN/3C-SiC/Diamond HEMTs for Design Optimization

Xiang Zheng, James W. Pomeroy, Pharyanshu Kachhawa, J. Liang et autres

This study presents a comprehensive thermal analysis of GaN/3C-SiC/diamond high-electron-mobility transistors (HEMTs), focusing on optimizing heat dissipation through a novel integration of nanosecond transient thermoreflectance (ns-TTR) and Raman thermography. By applying these techniques to fully fabricated devices, we directly measured layer-specific thermal …

gb, jp (code pays fourni par la source)

Reliability Enhancement of Ga 2 O 3 Heterojunction Diodes Due to Space-Charge Modulation

Chunxiao Yu, Haodong Hu, Xiang Zheng, Bochang Li et autres

cn (code pays fourni par la source)

Quasi-honeycomb graphene architectures enabling geometry-adaptive thermal regulation for high-density electronics

Qiang Zhao, Ying Wang, Xiang Zheng, Xiaolu Cai et autres

) structure enables spontaneous self-assembly on sub-100 μm metallic foils, providing geometrically adaptive heat dissipation for irregular surfaces. This work establishes a universal paradigm for developing conformal thermal management solutions compatible with geometrically complex surfaces in next-generation compact electronics.

cn (code pays fourni par la source)

Multi-Mode Extended Phase-Shift Control Strategy for Single-Stage DAB AC-DC Converters Considering Minimum Current Stress

Zhiyong Tu, Yifan Yu, Lijun Hang, YuanBin He et autres

To broaden the zero-voltage turn-on range and reduce current stress for adapting to the sinusoidally varying AC-side voltage in single-stage AC-DC converters, this paper proposes a multi-mode extended phase-shift control strategy for double active bridge (DAB) converters. An adaptive control mode was …

cn (code pays fourni par la source)

A Unified Semi Discontinuous PWM Strategy for Current Oscillation Suppression in a Three-Phase Voltage Source Inverter

Xiang Zheng, Yifan Yu, Lijun Hang, Bin Chen et autres

Modulation strategies for three-phase voltage-source inverters (VSIs) can enhance system efficiency, output current quality, and reliability without additional hardware cost. Therefore, it is crucial to develop modulation methods that improve efficiency while maintaining high output current quality. In this study, a carrier-based …

cn (code pays fourni par la source)

Dual-mode Switching Control for Dual-Bridge Series Resonant Micro-Inverter

Yufan Lai, Yifan Yu, Lijun Hang, YuanBin He et autres

Control plays an important role in achieving efficient and accurate operation of single-stage single-phase dual-bridge series resonant dc-ac converter (DBSRC). This paper presents a variable-frequency phase-shift control scheme with dual-mode switching control strategy, wide-range soft switching and minimum reverse power. The proposed …

cn (code pays fourni par la source)

Adherent β-Ga2O3 thin films on single crystal diamond (001) substrates enabled by (AlxGa1−x)2O3 buffer layers

Arpit Nandi, Ramandeep Mandia, Indraneel Sanyal, Xiaoyang Ji et autres

Diamond is an attractive substrate choice for the growth of gallium oxide for high-power device applications due to its high thermal conductivity. However, the cubic crystal structure of diamond is very different from that of monoclinic β-Ga2O3. Adding to the complexity, there …

gb, us (code pays fourni par la source)

γ-irradiation induced trapping effects on off-state and on-state p-GaN Gate high-electron-mobility transistors

Z.C. Feng, Shijie Pan, Shiwei Feng, Xiang Zheng et autres

cn, gb (code pays fourni par la source)

Facile fabrication of transparent and stretchable cellulose ionic gel paper for sustainable use in multifunctional sensors and optoelectronic devices

Ruiping Tong, Ping Gu, Yifu Wang, Huan Ye et autres

cn (code pays fourni par la source)