Results 51 to 60 of about 106,933 (307)

750 V Breakdown in GaN Buffer on 200 mm SOI Substrates Using Reverse-Stepped Superlattice Layers

Micromachines
In this work, we demonstrated the epitaxial growth of a gallium nitride (GaN) buffer structure on 200 mm SOI (silicon-on-insulator) substrates. This epitaxial layer is grown using a reversed stepped superlattice buffer (RSSL), which is composed of two ...
Shuzhen You, Yilong Lei, Liang Wang, Xing Chen, Ting Zhou, Yi Wang, Junbo Wang, Tong Liu, Xiangdong Li, Shenglei Zhao, Jincheng Zhang, Yue Hao   +11 more
doaj   +1 more source

Tuning the Optoelectronic Properties of Wide Bandgap Perovskites: Data‐Driven Insights from Combinatorial Synthesis and High‐Throughput Experimentation

Advanced Functional Materials, EarlyView.
Combinatorial vapor deposition enables independent tuning of Cs/Pb and Br/Cl in wide‐bandgap perovskites. Automated multimodal mapping of 500+ compositions reveals a high‐energy optical transition that correlates with enhanced photoluminescence, defining a practical Cs/Pb window.
Alexander Wieczorek, Sergey Tsarev, Nathan Rodkey, Oleksandr Pshyk, Stefanie Frick, Maksym V. Kovalenko, Sebastian Siol   +6 more
wiley   +1 more source

Research on Linear Energy Transfer of SiC Materials Based on Monte Carlo Method

Micromachines
The energy deposition process for the main components of SIC Schottky diodes is simulated based on Geant4. Particle bombardment results were simulated under different angles, target materials and doping concentrations on the same target material for ...
Jiamu Xiao, Heng Xie, Shougang Du, Shulong Wang, Tianlong Zhao, Hongxia Liu   +5 more
doaj   +1 more source

Bandgap engineering of Cd1−xSrxO [PDF]

Physica B: Condensed Matter, 2011
Structural, electronic and optical properties of Cd1-xSrxO (0 \leq x \leq 1) are calculated for the first time using density functional theory. Our results show that these properties are strongly dependent on x. The bond between Cd and O is partially covalent and the covalent nature of the bond decreases as the concentration of Sr increases from 0 to ...
Khan, I., Ahmad, Iftikhar, Amin, B., Murtaza, G., Ali, Z.   +4 more
openaire   +2 more sources

Simultaneous Enhancement of Performance and Stability in Dual‐Gate a‐IGZO Thin‐Film Transistors via Single‐Step Laser Annealing for Capacitor‐Less DRAM

Advanced Functional Materials, EarlyView.
A single‐step laser annealing strategy is presented for dual‐gate a‐IGZO TFTs. The steep thermal gradient induces graded oxygen doping in the channel and simultaneous WOx removal at the contacts, enabling concurrent interface and contact engineering.
Sihyeon Kwon, Junil Kim, Geuntae Park, Minseok Kim, Woohyun Hwang, Wanki Kim, Daewon Ha, Byeongmoon Lee, Jae Eun Jang, Hyuk‐Jun Kwon   +9 more
wiley   +1 more source

Microchannel Cooling for Performance Enhancement of GaN-on-Si HEMT With a Low R_j-a of 13.5 K/W

IEEE Journal of the Electron Devices Society
Gallium nitride (GaN) is a high-performance wide bandgap semiconductor material with unique physical and chemical properties such as higher breakdown electric field, higher electron density, superior electron mobility and saturation velocity.
Jiajun Zhou, Xin Feng, Weihang Zhang, Kui Dang, Yachao Zhang, Zeyang Ren, Yanjing He, Xianhe Liu, Hong Zhou, Zhihong Liu, Yue Hao, Jincheng Zhang   +11 more
doaj   +1 more source

An Image Detection–Memory–Recognition Artificial Visual Unit Based on Dual‐Gate Phototransistors

Advanced Intelligent Systems, 2023
Optoelectronic synapses integrating sensing–memory–processing functions have great advantages in neuromorphic computing for visual information processing and complex learning, recognition, and memory in an energy‐efficient manner. Herein, a light‐induced
Bo Wang, Yichi Zhang, Jie You, Maolong Yang, Zhao Han, Dongdong Lin, Maliang Liu, Ningning Zhang, Zuimin Jiang, Hui Guo, Jincheng Zhang, Liming Wang, Huiyong Hu   +12 more
doaj   +1 more source

Engineered Nanotopography to Modulate Growth and Signaling of Neuronal Networks

Advanced Functional Materials, EarlyView.
This study examines the interaction between neurons and nanoscale topographies on engineered substrates. Neurons cultured on nanowires, nanopillars and nanoneedles exhibit enhanced neurite outgrowth, form more organized neuronal circuits, and display improved synaptic connectivity, compared to flat substrates.
Hao Nguyen Tran, Kalyan Shobhana, Zlatan Trifunovic, Dan Smith, Michael Stuiber, Chennupati Jagadish, Mirella Dottori, Andrea J. O'Connor, Vini Gautam   +8 more
wiley   +1 more source

Development of hollow-core photonic bandgap fibres free of surface modes

, 2009
Conventional optical fibres can only guide light in a high refractive index core by total internal reflection. By using total internal reflections it is not possible to guide light in an air core.
Amezcua-Correa, Rodrigo
core   +1 more source

Preparation and Characterization of GaN-on-Si HEMTs with Nanocrystalline Diamond Passivation

Crystals
Thermal accumulation under high output power densities is one of the most significant challenges for GaN power devices. Diamond, with its ultra-high thermal conductivity, offers great potential for improving heat dissipation in high-power GaN devices. In
Yu Fu, Songyuan Song, Zeyang Ren, Liaoliang Zhu, Jinfeng Zhang, Kai Su, Junfei Chen, Tao Zhang, Weidong Zhu, Junpeng Li, Weidong Man, Yue Hao, Jincheng Zhang   +12 more
doaj   +1 more source