Results 111 to 120 of about 54,913 (297)

Comparative Investigation of Three Mg Doping Strategies in NMC811 Cathodes for High‐Energy Density Lithium‐Ion Batteries

open access: yesBatteries &Supercaps, EarlyView.
Magnesium (Mg) doping is explored as a stabilization strategy for high‐capacity LiNi0.8Mn0.1Co0.1O2 (NMC811) cathodes. Three doping routes are compared, revealing that solid‐state lithiation delivers the best cycling stability. Operando X‐ray diffraction and electrochemical dilatometry link reduced cation mixing and lattice stabilization to improved ...
Anna Kobets   +8 more
wiley   +1 more source

Core hole processes in x-ray absorption and photoemission by resonant Auger-electron spectroscopy and first-principles theory. [PDF]

open access: yesPhys Rev B, 2020
Woicik JC   +7 more
europepmc   +1 more source

Highly Efficient Sky‐Blue Perovskite Quantum Dot Light‐Emitting Diodes via Ligand‐Assisted Trap‐State Passivation

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Highly efficient sky‐blue LED with EQE of 13.6% is realized through short‐chain ligand tridecylamine treaded perovskite quantum dots, due to the suppressed non‐radiative recombination from the trap state. These results indicate that the ligand with strong affinity can facilitate the surface defects passivation, resulting in enhanced optical properties,
Mengyu Zhu   +14 more
wiley   +1 more source

Constructing Cu/Cu2O Heterogeneous Interface for Efficient Urea Electrosynthesis

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this study, a Cu/Cu2O heterogeneous interface with dual active sites is prepared for electrocatalytic CO2 and NO3−$$ {\mathrm{NO}}_3^{-} $$ coupling to urea. The catalyst shows high yield rates of 1156.63 mmol g−1 h−1 and FE of 29.67% at −1.0 V (vs RHE), which is significantly higher than Cu and Cu2O, highlighting the advantages of heterogeneous ...
Jiani Liu   +7 more
wiley   +1 more source

Surface studies of thermionic cathodes and the mechanism of operation of an impregnated tungsten cathode [PDF]

open access: yes
The surface properties of conventional impregnated cathodes were investigated by the use of Auger spectroscopy and work function measurements, and these were compared with a synthesized barium or barium oxide coated tungsten surface.
Forman, R.
core   +1 more source

Regulation of charge distribution for highly efficient colloidal quantum‐well light‐emitting diodes with deep‐red emissions

open access: yesInfoMat, EarlyView.
By using efficient core/shell colloidal quantum‐wells (CQWs) and an effective triple hole transport layer architecture, CQW light‐emitting diodes (CQW‐LEDs) with long‐wavelength emissions exhibit a record external quantum efficiency of 17.45%, a record luminance of 9335 cd m−2, extremely low efficiency roll‐off, ultra‐saturated emissions, and excellent
Wenhui Fang   +11 more
wiley   +1 more source

Low-voltage Secondary Electron Emission Spectromicroscopy using a Scanning Auger Microscope [PDF]

open access: yesBIO Web of Conferences
Mehr Abbas Kosari   +6 more
doaj   +1 more source

THE INFLUENCE OF THERMOSTIMULATED SEGREGATION ON PLASMON RESONANCE AND VALENCE ELECTRON DENSITY IN SURFACE LAYER FOR THE Cu-Mn ALLOY [PDF]

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2011
The influence of thermostimulated segregation on surface electrons properties of polycrystalline Cu-22,5 at. % Mn alloy was investigated by REELS and AES means. Dependences of valence electrons density on temperature, structure and depth of surface layer
K.Ch. Bzhihatlov, I.N. Sergeev
doaj  

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