Results 51 to 60 of about 3,356 (188)

Photoconductivity relaxation and electron transport in macroporous silicon structures

Semiconductor Physics, Quantum Electronics & Optoelectronics, 2017
Kinetics and temperature dependence of photoconductivity were measured in macroporous silicon at 80…300 K after light illumination with the wavelength 0.9 μm.
L.A. Karachevtseva, V.F. Onyshchenko, A.V. Sachenko   +2 more
doaj   +1 more source

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

Carbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li, Wei Qu, Deepak Kumar, Naini Jain, Nur Wardina Syahirah binti Mohamad Fadil, Nur Najiha binti Ahmad Rasid, Emannuel Kymakis, Maria Vasilopoulou, Chunxiong Bao, Feng Gao, Peng Gao, Sanjeev Kumar Sharma, Mohammad Khaja Nazeeruddin, Abd. Rashid bin Mohd Yusoff, Haotong Wei   +14 more
wiley   +1 more source

Tuning structures and catalysis performance of two-dimensional covalent organic frameworks based on copper phthalocyanine building block and phenyl connector

Scientific Reports
Based on the experimentally reported stable and conductive two-dimensional covalent organic frameworks with copper phthalocyanine (CuPc) as building block and cyan substituted phenyl as connector (CuCOF-CN) as an electrocatalyst for CO2 reduction ...
Yuexing Zhang, Junhao Peng, Guangsong Zhang, Xingguo Zhang, Shuai Zhang, Qing Li, Guanfeng Tian, Xiaoli Wang, Ping Wu, Xue-Li Chen   +9 more
doaj   +1 more source

Monocrystalline silicon carbide nanoelectromechanical systems [PDF]

Applied Physics Letters, 2001
SiC is an extremely promising material for nanoelectromechanical systems given its large Young's modulus and robust surface properties. We have patterned nanometer scale electromechanical resonators from single-crystal 3C-SiC layers grown epitaxially upon Si substrates.
Yang, Y. T., Ekinci, K. L., Huang, X. M. H., Schiavone, L. M., Roukes, M. L., Zorman, C. A., Mehregany, M.   +6 more
openaire   +2 more sources

In situ Generation of Fluoride Catalysts for CO2‐to‐Formic Acid Conversion With Silicon Reducing Agent

Chemistry – A European Journal, EarlyView.
Reductive conversion of CO2 to formic acid with waste silicon reducing agent catalyzed by in situ generation of active fluoride species from a tertiary amine, protonic acid, and simple inorganic fluoride salt, such as KF and NaF. ABSTRACT The activation and catalytic reduction of carbon dioxide (CO2) using silicon‐based reducing agents is an important ...
S. M. A. Hakim Siddiki, Yusuke Tanimura, Mariko Honda, Shingo Hasegawa, Kazuo Namba, Yuichi Manaka, Ken Motokura   +6 more
wiley   +1 more source

A Review of Grain Boundaries: Formation Mechanism, Synthesis Strategy, and Application in Electrocatalysis

EcoEnergy, EarlyView.
An overview of grain boundary engineering in the field of electrocatalysis. ABSTRACT Key electrocatalytic reactions such as HER, OER, ORR, CO2RR, and NRR offer promising routes for storing renewable energy as chemical fuels. However, their widespread application is constrained due to the lack of highly active and stable catalysts. Grain boundaries (GBs)
Jingyu Gao, Fengming Zhou, Xinying Li, Ying Deng, Zexing Wu, Siyuan Feng, Yujing Zhu, Dan Zhang, Zhenyu Xiao   +8 more
wiley   +1 more source

Design and Operation of Photovoltaic‐Driven Electrocatalytic Water Splitting for Hydrogen Production

EcoEnergy, EarlyView.
Photovoltaic‐driven electrocatalytic water splitting offers a scalable route to green hydrogen. This review introduces fundamental photovoltaic principles and key PV performance metrics, compares different PV–EC configurations, and provides practical guidance on design, operation, and PV–EC matching. Key bottlenecks and future directions for efficiency
Zhenlan Dou, Ying Zhang, Chunyan Zhang, Jieshi Shen, Miaoqiu Hu, Haifei Wang, Lei Guo   +6 more
wiley   +1 more source

Asymmetric Dual‐Electron Bridge Via Gradient Orbital Coupling for Robust Alkaline Oxygen Evolution in Low‐Iridium Water Electrolysis

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The engineered IrOx/FeEu‐NiTex composite, with ultralow Eu (0.72 at%) and Ir (0.14 at%) content, harnesses an asymmetric dual‐electron‐bridge structure (Ni 3d–O 2p–Eu 4f, Ni 3d–O 2p–Ir 5d) for gradient orbital coupling. This unique architecture delivers superior and robust alkaline oxygen evolution activity, enabling efficient low‐iridium water ...
Guiling Wu, Qianlin Chen, Feng Wang, Yan Zhao, Zhaoyang Wang   +4 more
wiley   +1 more source

High Performance Organic Semiconductor for Organic Photovoltaics and Organic Field Effect Transistor Based on Ethynylene Tied Zinc Porphyrin and Benzothiadiazole-Thiophen Oligomers

Chemistry
Design and fabrication of high-performance organic semiconductors are still challenging. Here, we designed new D-(A)n type zinc porphyrin end-capped ethynylene-7-(4-hexyl-thiophen-2-yl)-2,1,3-benzothiadiazole (EBTT) oligomers by linking 5,10,15 ...
Jin Lin, Kaixiang Song, Ling Luo, Mingkai Zhang, Yuexing Zhang   +4 more
doaj   +1 more source

Next‐Generation Carbon‐Based Anodes for Alkali Metal‐Ion Batteries: Recent Progress on Biphenylene and Emerging Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Recent advances in carbon‐based anodes for alkali metal‐ion batteries are critically reviewed, with emphasis on biphenylene and other emerging carbon allotropes. Biphenylene exhibits exceptional theoretical electrochemical properties beyond conventional graphite, highlighting its strong potential as a next‐generation anode material once scalable ...
Adewale Hammed Pasanaje, Nirpendra Singh
wiley   +1 more source