Results 51 to 60 of about 26,645 (265)

Reaction‐Time pH Stabilization by Poly(acrylic acid) with Ethanol‐Mediated Growth Control for Efficient Hydrothermal Sb2(S,Se)3 Solar Cells

Advanced Functional Materials, EarlyView.
Poly(acrylic acid) acts as a reaction‐time pH buffer during hydrothermal Sb2(S,Se)3 growth through its COOH/COO‐ equilibrium. When combined with ethanol‐regulated growth, this buffering strategy reduces Sb‐O related surface disorder, improves local electronic uniformity and carrier collection, and increases the champion solar‐cell efficiency to 10.25%,
Juhee Lee, Geumha Lim, Wookyung Jeon, Seongju Park, Jinwoo Chu, Yohan Yoon, William Jo, Byungha Shin   +7 more
wiley   +1 more source

Flexible Solar-Blind Ga₂O₃ Ultraviolet Photodetectors With High Responsivity and Photo-to-Dark Current Ratio

IEEE Photonics Journal, 2019
In this work, flexible solar blind Ga2O3 ultraviolet photodetectors with high responsivity and photo-to-dark current ratio are demonstrated. The Ga2O3 films are obtained by the RF magnetron sputtering method on flexible polyimide (PI) substrates and the ...
Zhe Li, Yu Xu, Jiaqi Zhang, Yaolin Cheng, Dazheng Chen, Qian Feng, Shengrui Xu, Yachao Zhang, Jincheng Zhang, Yue Hao, Chunfu Zhang   +10 more
doaj   +1 more source

Defect‐Mediated Inelastic Light Scattering by Infrared Phonons in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
Optically active defects in hexagonal boron nitride enable inelastic stimulated light scattering mediated by infrared‐active phonons, relaxing conventional Raman selection rules. Defect engineering enhances the Stokes‐conversion process and activates both TO‐ and LO‐phonon scattering channels.
Prabhdeep Singh, Bharti Garg, Maximilian Black, Masoud Taleb, Nahid Talebi   +4 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

High-Voltage β-Ga2O3 Schottky Diode with Argon-Implanted Edge Termination

Nanoscale Research Letters, 2019
The edge-terminated Au/Ni/β-Ga2O3 Schottky barrier diodes were fabricated by using argon implantation to form the high-resistivity layers at the periphery of the anode contacts.
Yangyang Gao, Ang Li, Qian Feng, Zhuangzhuang Hu, Zhaoqing Feng, Ke Zhang, Xiaoli Lu, Chunfu Zhang, Hong Zhou, Wenxiang Mu, Zhitai Jia, Jincheng Zhang, Yue Hao   +12 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

Managing Charge Transport and Exciton Generation for Highly Efficient, Bright, and Stable Near‐Infrared Organic Radical Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
High‐performing near‐infrared (NIR) organic light‐emitting diodes are demonstrated using an efficient and stable 800 nm‐emissive organic radical and a thermally activated delayed fluorescence (TADF) host. TADF‐assisted exciton generation combined with improved charge transport enables high external quantum efficiency (>8%), high radiance (>70,000 mW sr−
Hwan‐Hee Cho, Min‐Hsuan Chang, Yi‐Syun Chen, Tetsuro Kusamoto, Emrys W. Evans, Yuh‐Renn Wu, Richard H. Friend   +6 more
wiley   +1 more source

Moisture-Resistant Scalable Ambient-Air Crystallization of Perovskite Films via Self-Buffered Molecular Migration Strategy

Nano-Micro Letters
Highlights A self-buffered molecular migration strategy is developed to suppress spontaneous intermolecular exchange between perovskite intermediate phase and ambient moisture.
Mei Yang, Weidong Zhu, Laijun Liang, Wenming Chai, Xiaomeng Wu, Zeyang Ren, Long Zhou, Dazheng Chen, He Xi, Chunfu Zhang, Jincheng Zhang, Yue Hao   +11 more
doaj   +1 more source

Rainbow Trapping in Highly Doped Silicon Graded Grating Strip at the Terahertz Range

IEEE Photonics Journal, 2018
In this paper, we propose surface plasma polaritons (SPPs) propagating along the structure of grating grooves based on highly doped silicon, which exhibits better performance of exciting SPPs than metal at low frequency (e.g., microwaves, mid infrared ...
Yan Liu, Ruoying Kanyang, Genquan Han, Yao Shao, Cizhe Fang, Yan Huang, Siqing Zhang, Jincheng Zhang, Yue Hao   +8 more
doaj   +1 more source

Oxygen Evolution Electrocatalysts with Trinuclear, Mixed‐Valence Iron Motifs on Electronically Aligned Carbon Dots

Advanced Functional Materials, EarlyView.
Trinuclear iron oxo‐bridged catalytic ensembles stabilized by aspartic‐acid‐derived carbon dots provide an effective platform for alkaline oxygen evolution. Mixed‐valence charge balancing, inner‐sphere charge transport, and work‐function alignment within the N/O‐rich carbon framework promote cooperative Fe‐site chemistry and efficient OER ...
Megha A. Deshmukh, Giorgio Zoppellaro, Emiliano Fonda, Lukáš Zdražil, Shounik Paul, David Panáček, Hanuman Thorat, Zdeněk Badura, Michele Melchionna, Manuela Bevilacqua, Paolo Fornasiero, Klaus Müllen, Radek Zbořil, Aristides Bakandritsos   +13 more
wiley   +1 more source