Results 101 to 110 of about 9,090 (227)

Modulating Persistent Photoconductivity through Barrier Engineering for High‐performance and Multifunctional Two‐dimensional Optoelectronic Devices

Advanced Science, EarlyView.
Schottky barrier engineering using van der Waals contacts enables effective modulation of persistent photoconductivity (PPC) in optoelectronic devices. A high persistent photoconductivity gain (PPCG) (307.6%) is achieved in a high‐barrier Au/MoS2 junction, supporting photomemory and optoelectronic synaptic behaviors. A low PPCG (4.72%) is achieved in a
Panpan Huo, Xinhao Zhang, Xiangyong Cui, Yeming Wang, Dong Zhou, Baoyuan Man, Il Jeon, Won Jong Yoo, Cheng Yang   +8 more
wiley   +1 more source

Plasmon Enhanced Photoelectrochemical Activity of Ag-Cu Nanoparticles on TiO2 /Ti Substrates

International Journal of Electrochemical Science, 2012
Ag-Cu nanoparticles were deposited on titania nanotube arrays via photodeposition method. The photocurrent density and voltage curves were measured under simulated sunlight and visible light irradiation conditions. Ag-Cu co-deposited photoelectrodes with
Jian Liu, Fuyi Chen
doaj   +1 more source

Robust and Tailored 1D/3D Heterojunction for Efficient and Stable Perovskite Solar Cells

Advanced Science, EarlyView.
This study successfully established a robust 1D/3D heterojunction, characterized by a stable 1D phase, favorable lattice matching, strong interface binding, and effective defect passivation. The resulting epitaxial perovskite film demonstrates preferential vertical orientation of (100) facets, thereby facilitating carriers’ transport and stress relief.
Wending Hao, Tao Liu, Xu Wang, Luan Li, Ziyu Zhang, Fengqi Sun, Qiang Luo, Ning Wang   +7 more
wiley   +1 more source

PHASE STABILITY AND SEMICONDUCTING BEHAVIOUR OF LOW ACTIVATION AUSTENITIC MN-CR STEELS

Iranian Journal of Materials Science and Engineering, 2014
Four compositions of austenitic Mn-Cr steels have been developed successfully for in-vessel component materials in power plant industry. The phase stability of these Mn-Cr steels was studied by and X-ray diffraction (XRD) patterns.
A Fattah-alhosseini, M Asadi Asadabad
doaj  

Corrosion behavior of 2507 duplex stainless steel in simulated SO2-Polluted seawater

工程科学学报, 2018
The corrosion behavior of 2507 duplex stainless steel in simulated seawater containing different concentrations of NaHSO3 solution was investigated using open circuit potential, electrochemical impedance spectroscopy (EIS), Mott-Schottky curves, and an ...
ZHU Min, ZHU Tao, CHEN Ming, GUO Shao-yi, YUAN Yong-feng, YU Gao-hong, NIE Lun   +6 more
doaj   +1 more source

Fluorine‐Doping of Mesoporous TiO2 Enables Efficient Defect Passivation for High‐Efficiency and Stable Perovskite Solar Cells

Advanced Science, EarlyView.
We introduce an SF6 RIE plasma fluorination method for mesoporous TiO2, suppressing oxygen vacancies and improving charge extraction. The fluorinated TiO2 promotes uniform FAPbI3 film formation and enhances device performance under both one‐sun and indoor illumination.
Hye W. Chun, Sang Yeon Lee, Sang Eun Yoon, Gyeong G. Jeon, Veera Murugan Arivunithi, So Jeong Shin, Min Jun Choi, Byeongsu Kim, Min‐Ho Lee, Dohyeon Jeon, Taekyeong Kim, Jung‐Yong Lee, Jong H. Kim   +12 more
wiley   +1 more source

Influence of Micro-arc Oxidation Coatings on Corrosion Performances of AZ80 cast alloy

International Journal of Electrochemical Science, 2018
To enhance the corrosion performance of cast AZ80 alloy, micro-arc oxidation (MAO) coating was synthesized at various processing current densities in a basic silicate-fluoride solution.
Yuna Xue, Xin Pang, Bailing Jiang, Hamid Jahed   +3 more
doaj   +1 more source

Dynamic Hydrogen‐Bonding Nanonetworks and Asymmetric Dual‐Interface Built‐In Electric Fields Cooperatively Mediate Proton‐Coupled Electron Transfer for C─H Activation

Advanced Science, EarlyView.
The general strategy for constructing proton–electron dual‐transport‐channel photocatalysts (hollow Co3S4/Sv‐chalcogenide/Ti3C2 nanoreactors) is developed. Theses ternary‐component nanoreactors feature dynamic hydrogen‐bonding nanonetworks as proton‐transport channels and asymmetric dual‐interface BIEFs as electron‐transport channels, serving as a ...
Yi‐Wen Han, Run‐Yu Liu, Yu Chen, Lei Ye, Tian‐Jun Gong, Xue‐Bin Lu, Ning Yan, Yao Fu   +7 more
wiley   +1 more source

FeCoNiCuPt High‐Entropy Alloy Boosts Photocatalytic Hydrogen Production on Protonated Graphitic Carbon Nitride

Advanced Science, EarlyView.
In this study, FeCoNiCuPt high‐entropy alloy particles (HEA) are loaded onto protonated g‐C3N4 nanosheets (HCN NSs) to construct HEA/HCN composites through an electrostatic self‐assembly method. Protonation treatment enriches the surface of g‐C3N4 nanosheets with abundant active sites and enhances their interfacial charge separation capability ...
Yunzhu Zang, Jiali Ren, Yanjun Xue, Jian Tian   +3 more
wiley   +1 more source

Early Stages of Corrosion Phenomena from Impedance Study of Mercury in Aqueous Sodium Chloride

International Journal of Electrochemical Science, 2008
The effects of chloride ion on the electronic properties of the passive film on mercury in aqueous 1.0 M sodium chloride solutions were investigated using admittance and impedance measurements.
C.V. Krishnan, M. Garnett, B. Chu
doaj   +1 more source