“…This ZnGa(2)O(4) film annealed under air ambience exhibited a smooth surface, an excellent average transmittance above 82% in the visible region, and a wide bandgap of 5.05 eV. The oxygen vacancies under different annealing ambiences were revealed a substantial impact on the material and photodetector characteristics by X-ray photoelectron spectrum investigations. …”
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“…Understanding the halide ion migration (mediated through halide vacancies) and suppressing the halide ion segregation, thus, remain a significant challenge both in the field of PSCs and PeLEDs since it is directly linked to the long-term stability and performances of the corresponding devices. …”
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“…Several characterization techniques were employed to investigate the phases, microstructures, compositions, valence states, oxygen vacancies, surface oxygen absorption, energy band structures and lifetime of photoproduced carriers. …”
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“…In combination with non-equilibrium measurements under polarization and defect chemical model calculations, these results elucidate several aspects of the oxygen exchange reaction mechanism and refine the understanding of the role oxygen vacancies and electronic charge carriers play in the oxygen exchange reaction. …”
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“…Results showed that the hydrazine hydrate reduction not only introduces a large number of pores into 3D-NiCo-SDBS-LDH microspheres and causes the formation of oxygen vacancies, but it also roughens the surface of the microspheres. …”
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“…Experimentally, a series of characterization results confirm the reconstruction behavior in the Ni(3)S(2)/Fe‐NiP (x) surface, leading to the in situ formation of Ni(OH)(2)/Ni(Fe)OOH with abundant oxygen vacancies and grain boundaries, which constructs the Ni(3)S(2)/Fe‐NiP (x) reconstruction system responsible for the remarkable OER catalytic activity. …”
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“…Moreover, we extend our analysis to realistic systems that include vacancies and boron or nitrogen impurities at the oxygen atomic positions. …”
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“…The experimental lattice parameters show increasing trends for both the series with increase of Cr content. The cation–anion vacancies, chemical bonding, and the displacement of oxygen have been evaluated to understand the effect of Cr substitution and how the non-stoichiometry affects the physical and chemical properties of the material. …”
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“…P[St-co-DMAEMA] was selected as a bi-modal polymer capable to stabilize the perovskite nano-crystals via electrostatic interactions between the tri-alkylamine amine sites of the co-polymer and the A-site vacancies of the perovskite and simultaneously enable Van der Waals attractive interactions between the aromatic arene sites of the co-polymer and the surface of graphene. …”
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“…In the present work, carbon quantum dots (CQDs) and Au nanoparticles (NPs) were simultaneously assembled on the surface of a three-dimensional (3D) spherical Bi(2)MoO(6) (BMO) nanostructure with surface oxygen vacancies (SOVs). The collective excitation of CQDs and Au NPs demonstrated an effective strategy to improve the utilization of up-conversion emission and plasmonic energy. …”
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“…It is believed that the notable improvement in the hydrogen sorption kinetics is due to the in situ-formed active species of CeH(2.51) and MgO as well as the abundant oxygen vacancies, which play a vital role in catalyzing the hydrogen sorption performance of MgH(2).…”
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“…Further, it was confirmed that among the several catalysts prepared, the amount of oxygen vacancies (O(vs)), Lewis acid sites (LAS), and Brønsted acid sites (BAS) of the ZnFe(2)O(4)/γ-Al(2)O(3) catalyst were the highest. …”
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“…The formation of the phase of tetragonal tungsten bronze with space group P4bm and the occurrence of oxygen vacancies were verified by the Rietveld refinement using X-ray diffraction data. …”
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“…The content of surface oxygen vacancies has significantly increased and the BET specific area increased to 104 m(2) g(−1). …”
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“…Both the experimental and theoretical studies demonstrate that the ferromagnetism in Co-doped ZnO nanoparticles is originated from the combined effects of Co doping and oxygen vacancies. These results provide an experimental and theoretical view to understand the magnetic origination and tune the magnetic properties of diluted magnetic semiconductors, which is of great significance for spintronics.…”
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“…The occurrence of superstoichiometric oxygen in the structure of Mn(1.7)Ga(1.3)O(4+δ) oxide indicates the formation of cationic vacancies, which shows up as a decreased lattice parameter in comparison with “high-temperature” oxides synthesized at 1000–1200 °C; the additional negative charge is compensated by an increased content of Mn(3+) cations according to XPS. …”
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“…The surface isoelectric point is 7.3 when calcined in a mixed atmosphere of N(2) (96%)/H(2) (4%), which is higher than that when calcined in air and vacuum. Some oxygen vacancies were present on the surface of the ZrO(x) (0 < x < 2) shell, resulting in the tetragonal zirconia still being available at room temperature. …”
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“…Passivation performance is related to chemical and field effect passivation, which is due to released H atoms from the Al–OH bonds and the formation of Al vacancies and O interstitials within Al(2)O(3) films. …”
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“…The high performance is attributed to the uniform dispersion of small-sized Cu(2)O nanoparticles on conductive MWCNTs, which offers plenty of redox active sites and thus improve the electron transfer efficiency. Oxygen vacancies are further introduced into Cu(2)O by the NaBH(4) treatment, providing the oxygen-deficient Cu(2)O/MWCNTs (r-Cu(2)O/MWCNTs) nanocomposite with significantly improved specific capacitance (790 F g(−1)) and cycling stability (∼93% after 20 000 cycles). …”
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“…The introduction of Al at Mo positions produced conspicuous amounts of oxygen vacancies in the perovskite, detected by neutrons. …”
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