Results 131 to 140 of about 24,619 (304)

Beyond d‐Band Catalysis: A Critical Review and Descriptor Framework for Rare‐Earth Engineering in Lithium–Sulfur Batteries

Advanced Science, EarlyView.
Rare‐earth catalysts regulate lithium–sulfur battery chemistry through f‐orbital–mediated interactions, enabling simultaneous polysulfide adsorption and catalytic conversion on conductive carbon hosts. This synergistic control suppresses the shuttle effect, accelerates redox kinetics, and guides stable Li2S nucleation, providing a mechanistic framework
Fan Wang, Shihzad Shakil, Guozhi Wu, Jiarui Huang, Hanhui Lei, Terence Xiaoteng Liu   +5 more
wiley   +1 more source

Two-dimensional ordering of self-assembled InxGal-xAs quantum dots grown on GaAs(311)B surfaces

, 1999
Two-dimensional (2D) ordering of self-assembled InxGa1-xAs quantum dots (QDs) fabricated on GaAs(311)B surface by molecular beam epitaxy (MBE) are reported. The QDs are aligned into rows deferring from the direction of the misorientation of the substrate,
Xu HZ,Chinese Acad Sci,Inst Semicond,Lab Semicond Mat Sci,POB 912,Beijing 100083,Peoples R China., Xu B, Xu HZ, Zhou W, Wang ZG, Jiang WH   +5 more
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Spin dynamics in semiconductor heterostructures [PDF]

, 2012
This thesis presents experimental investigations of the electron spin dynamics (i.e. the spin relaxation rate, This thesis presents experimental investigations of the electron spin dynamics(i.e.
English, David
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Near‐Unity Selectivity Inversion Between CO2 Electroreduction and H2 Evolution via Atomic Coordination Editing

Advanced Science, EarlyView.
Atomic coordination editing functions as an on/off switch that toggles single‐atom catalysts between CO2 electroreduction and hydrogen evolution. ABSTRACT Precise atomic coordination editing of single‐atom catalysts (SACs) provides an effective strategy to tune their electronic structures and catalytic selectivity. Yet, achieving near‐unity selectivity
Yukun Zhao, Yuanyuan He, Mengyu Duan, Peng Yin, Jinxing Chen, Xu Han, Jie Yang, Yulin Wang, Xingjie Fu, Shibo Xi, Chuncheng Chen, Jiong Lu   +11 more
wiley   +1 more source

A MULTI-WAFERS LPE TECHNIQUE FOR ALXGA1-XAS GAAS HETEROJUNCTION SOLAR-CELLS

, 1994
A multi-wafers LPE technology has been developed in our laboratory by means of using a simple squeezing graphite boat, having a capability of growing 20 wafers with a big size of 2.3 X 2.3 cm(2) in one epitaxial run.
XIANG XB, FEI XY, XIANG XB CHINESE ACAD SCIINST SEMICONDPOB 912BEIJING 100083PEOPLES R CHINA., LI B, XU Y   +4 more
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Origin of current instabilities in GaAs/AlxGa1-xAs heterostructures: avalanche ionization in the AlxGa1-xAs layer

, 1993
Pulsed current-voltage measurements on modulation-doped GaAs/Al xGa1-xAs heterostructures are presented at electric fields up to 2 kV/cm. At fields between 0.5 and 2.0 kV/cm we observe up to three well-defined avalanche type current jumps as a function ...
Haverkort, J.E.M., P. T. J. van Helmond, Haverkort, J.E.M.; id_orcid, Hendriks, P., J. H. Wolter, J. E. M. Haverkort, van Helmond, P.T.J., Wolter, J.H., P. Hendriks, M. J. M. Vermeulen, E. A. E. Zwaal, Zwaal, E.A.E., Vermeulen, M.J.M.   +12 more
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Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source

Binding energy of positively and negatively charged excitons in GaAs/AlxGa1-xAs quantum wells

, 2002
Using a simple two-parameter wavefunction, we calculate variationally the binding energy of positively and negatively charged excitons in GaAs/AlxGa1-xAs quantum wells for well widths from 10 to 300Angstrom.
Zhang SF, Liu JJ,Hebei Normal Univ,Dept Phys,Shijiazhuang 050016,Peoples R China., Liu JJ, Yang GC, Li SS   +4 more
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Interfacial Proton‐Relay Microenvironment Enables Self‐Driven Singlet Oxygen Generation under Neutral Conditions

Advanced Science, EarlyView.
An interfacial proton‐relay microenvironment at MoS2‐CuCl heterostructures enables selective O2 activation to 1O2 under neutral conditions. Electron‐deficient sulfur sites mediate proton transfer to Cu‐bound O2, accelerating *OOH hydrogenation while suppressing O─O bond cleavage, achieving stable, efficient pollutant removal.
Qiaoyu Gao, Xiaohui Dai, Jian Ye, Lili Li, Chenxiao Yu, Yuehan Jiang, Jiangdong Dai, Xiaohua Tian, Jun Zhao, Jianming Pan   +9 more
wiley   +1 more source

EER studies of the single quantum well GaAs/AlxGa1-xAs electrode/nonaqueous solution interface

, 1996
The interfacial behavior of the single quantum well (SQW) GaAs/AlxGa1-xAs electrode in HQ/BQ and Fc/Fc(+) electrolytes was characterized respectively by studying the quantum confined Stark effect and Franz-Keldysh oscillation with electrolyte ...
Xiao XR, Liu Y, Wang RZ, Li DL, Zeng YP, Yang CH, Sun DZ   +6 more
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