Results 111 to 120 of about 29,896 (261)
Electrochemistry CommunicationsThe oxygen evolution reaction (OER) on the TiO2 surface at the solid–liquid interface was observed in real-time and operando using fluorescence-yield X-ray absorption spectroscopy (XAS) in the soft X-ray region.
Kaoruho Sakata, Kenta Amemiya
doaj +1 more source
Binding energy of ionized-donor-bound excitons in the GaAs-AlxGa1-xAs quantum wells
, 2000 The binding energy of an exciton bound to an ionized donor impurity (D+,X) located st the center or the edge in GaAs-AlxGa1-xAs quantum wells is calculated variationally for the well width from 10 to 300 Angstrom by using a two-parameter wave function ...
Zhang SF +4 more
core
X-ray absorption spectroscopy—a beginner’s guide
JPhys EnergyX-ray absorption spectroscopy (XAS) has become a central tool for probing the local electronic and atomic structure of materials across physics, chemistry, and materials science, particularly under realistic operating conditions.
Marcus Fehse, Lorenzo Stievano
doaj +1 more source
Advanced Science, EarlyView.A room‐temperature vanadium cation exchange strategy is developed to achieve simultaneous structural reconstruction and electronic/defect modulation of ZIF‐67 on nickel foam. The resulting mesoporous V20–Co(OH)2 electrode exhibits superior OER activity with low overpotentials and enhanced lattice oxygen participation.
Yongbeen Kim, Seungwoo Han, Wonyoung Lee
wiley +1 more source
, 1995 Transient photocurrents induced by short light pulses at lattice-matched GaAs/AlxGa1-xAs multiple quantum well (MQW) electrodes were studied as a function of electrode potential.
Liu Y +6 more
core
Advanced Science, EarlyView.Hydrogen‐bonding‐directed assembly enables molecular‐level integration of a covalent organic framework and NiZnCo nanoclusters. The engineered interface couples directional charge transfer, multimetal synergy, and photothermal‐assisted catalysis, providing a versatile strategy for efficient noble‐metal‐free solar hydrogen production.
Ailing Pan +5 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 +4 more
core
, 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. +12 more
core +1 more source
Advanced Science, EarlyView.Phosphorus‐rich MgP4 is introduced as a high capacity anode for sodium‐ion batteries (SIBs) via hybrid carbon matrix engineering. A sequential CNT/G assembly forms a conductive and mechanically robust network, delivering a high reversible capacity of 1386 mAh g−1 while stabilizing alloying reactions.
Sion Ha +6 more
wiley +1 more source