Results 31 to 40 of about 27,330 (257)

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

Advanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang, Dong Hyun Lee, Conan Weiland, Won‐Il Lee, Kim Kisslinger, Mingzhao Liu, Aswin kumar Anbalagan, Xiao Tong, Soumyajit Mandal, Nikhil Tiwale, Houk Jang, Chang‐Yong Nam   +11 more
wiley   +1 more source

A thermal network model considering thermal coupling effect and TIM degradation in IGBT modules

Energy Reports, 2023
Thermal interface materials (TIMs), as important materials for heat dissipation of insulated gate bipolar transistor (IGBT) modules, degrade under long-term thermal cycling, resulting in elevated junction temperatures and threatening the safe operation ...
Xiaotong Zhang, Zhuolin Cheng, Chunlin Lv, Xing Sun, Jianying Li, Kangning Wu   +5 more
doaj   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

Atom Probe Tomography as an Emerging Tool for Understanding Defect‑Driven Mechanisms in HfO2‑Based Ferroelectrics

Advanced Functional Materials, EarlyView.
This Perspective highlights atom probe tomography as a powerful tool for understanding the atomic‐scale defect chemistry in HfO2‐based ferroelectrics. 3D mapping of dopants, point defects, and interface chemistry can provide new insight into defect‐driven mechanisms underpinning the ferroelectricity in the system and guide the design of more reliable ...
Kasper Hunnestad, Catherine Dubourdieu, Alexei Gruverman, Dennis Meier   +3 more
wiley   +1 more source

Damage Effect of Single and Sequential Neutron/γ Irradiation on Bipolar Device

Yuanzineng kexue jishu
Bipolar transistors are widely used in electronic circuits and serve as core components in various devices. In the complex radiation environments, electronic circuits are exposed to more than one type of radiation particle.
XING Jiabin1, WANG Kai2, CAO Fei1, YANG Jianqun2, QIN Jianqiang1
doaj   +1 more source

Online Degradation State Assessment Methodology for Multi-Mode Failures of Insulated Gate Bipolar Transistor

IEEE Access, 2020
Insulated-gate bipolar transistors (IGBTs) are one of the most vulnerable components that account for a significant fraction of inverter and converter failures. This paper conducts a degradation analysis of IGBTs using run-to-failure measurements. Online
Xiangxiang Liu, Lingling Li, Diganta Das, Ijaz Haider Naqvi, Michael G. Pecht   +4 more
doaj   +1 more source

Decoupling Electron and Phonon Transport in 3D‐Printed Bismuth Telluride via Synergistic Compositional Co‐Enrichment

Advanced Functional Materials, EarlyView.
In this work, we use direct ink writing (DIW) to 3D print Bi2Te3‐based materials and naturally induce hierarchical functional nanostructures, which reduced the lattice thermal conductivity by half, resulting in high zT of 0.87and 0.89 in p‐type and n‐type compounds, respectively, competitive with commercial materials.
Liangwei Hu, Wenhao Xie, Han Tang, Xiaolong Sun, Muyang Huang, Xiaolu Zhu, Yineng Gou, Weishuai Wang, Yun Zheng, Yue Hou, Guoqiang Wu, Ady Suwardi, Ziyu Wang   +12 more
wiley   +1 more source

Thermal Cycling Induced Degradation of Graphite Bipolar Plates: Mechanisms and Experimental Analysis

Energies
Bipolar plates are critical components in high-efficiency energy conversion devices such as electrolyzers, fuel cells, and flow batteries, and their durability directly affects the overall performance and lifespan of the system. Although graphite bipolar
Daokuan Jiao, Feiyu Li, Yongping Hou, Ruidi Wang, Dong Hao   +4 more
doaj   +1 more source

Postcycling Degradation in Metal-Oxide Bipolar Resistive Switching Memory

IEEE Transactions on Electron Devices, 2016
Resistive switching memory (RRAM) features many optimal properties for future memory applications that make RRAM a strong candidate for storage-class memory and embedded nonvolatile memory. This paper addresses the cycling-induced degradation of RRAM devices based on a HfO2 switching layer.
Wang, Zhongqiang, Ambrogio, Stefano, Balatti, Simone, Sills, Scott, Calderoni, Alessandro, Ramaswamy, Nirmal, Ielmini, Daniele   +6 more
openaire   +1 more source

Mitochondria‐Targeted Nanotherapies in Aging Neurodegenerative Disorders: Emerging Prospects and Clinical Potential

Advanced Healthcare Materials, EarlyView.
Mitochondria‐targeted nanotherapies emerge as a promising strategy for combating aging‐associated neurodegenerative disorders (NDs) by restoring mitochondrial function, reducing oxidative stress, and improving neuronal survival. Recent advances in nanotechnology, therapeutic delivery, and translational research are highlighted, providing insights into ...
Dnyandev G. Gadhave, Ashish B. Jadhav, Nitin B. Waghamode, Shubham Khot, Rajiya Khan, Ravi Hole, Shankar M. Dhobale, Manoj Aswar, Keshav Raj Paudel   +8 more
wiley   +1 more source