Results 11 to 20 of about 18,845 (267)
Orienting Oxygen Vacancies for Fast Catalytic Reaction [PDF]
Advanced Materials, 2013 Catalysis is indispensable to chemical processes and relevant to many aspects of modern life. Owing to the intriguing electronic structures and good ionic properties, multivalent transition metal oxides have attracted attention as key catalysts for various energy and environmental applications.
Jeen, Hyoungjeen +6 more
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Charge-Transfer Induced by the Oxygen Vacancy Defects in the Ag/MoO3 Composite System
Nanomaterials, 2021 In this paper, an Ag/MoO3 composite system was cosputtered by Ar plasma bombardment on a polystyrene (PS) colloidal microsphere array. The MoO3 formed by this method contained abundant oxygen vacancy defects, which provided a channel for charge transfer ...
Qi Chu +7 more
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Sensors, 2017 The density of oxygen vacancies in semiconductor gas sensors was often assumed to be identical throughout the grain in the numerical discussion of the gas-sensing mechanism of the devices.
Jianqiao Liu +5 more
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Small Structures, 2023 Li‐rich rocksalt oxides are promising cathode materials for lithium‐ion batteries due to their large capacity and energy density, and their ability to use earth‐abundant elements.
Jianping Huang +7 more
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Nano-Micro Letters, 2021 Engineering oxygen vacancy formation and distribution is a powerful route for controlling the oxygen sublattice evolution that affects diverse functional behavior.
Wenrui Zhang +8 more
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A study of vacancy defects related to gray tracks in KTiOPO4 (KTP) using positron annihilation
AIP Advances, 2014 For the first time to our knowledge, positron annihilation spectroscopy (PAS) was used to study vacancy defects in KTiOPO4 (KTP) single crystals. Positron annihilation lifetime spectroscopy combined with dielectric measurements identified the existence ...
Yang Zhang +5 more
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SrTiO3 termination control: a method to tailor the oxygen exchange kinetics
Materials Research Letters, 2020 We provide insights into the influence of surface termination on the oxygen vacancy incorporation for the perovskite model material SrTiO $_3 $ during annealing in reducing gas environments.
Felix V. E. Hensling +4 more
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Vacancies and vacancy-oxygen complexes in silicon: Positron annihilation with core electrons [PDF]
Physical Review B, 1998 Various point defects in silicon are studied theoretically from the point view of positron annihilation spectroscopy. Properties of a positron trapped at a single vacancy, divacancy, vacancy-oxygen complexes $({\mathrm{VO}}_{n}),$ and divacancy-oxygen complex are investigated. In addition to the positron lifetime and positron binding energy to defects,
Kuriplach, Jan +4 more
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Oxygen vacancy induced electronic structure variation in the La0.2Sr0.8MnO3 thin film
AIP Advances, 2019 Oxygen vacancy in different oxide systems shows up as a crucial parameter in modulation of the emerging application-oriented functionalities. A systematic exploration on the relation between oxygen vacancy and electronic structure of the La0.2Sr0.8MnO3 ...
Jiali Zhao +8 more
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Hybrid functional study on the ferroelectricity of domain walls with O-vacancies in PbTiO3
Mechanical Engineering Journal, 2015 Nonlinear defect interactions between the 180° domain wall and oxygen-vacancies (O-vacancies) in PbTiO3, and the characteristic ferroelectricity due to the interactions are investigated using first-principles calculations based on the hybrid Hartree-Fock
Shogo TOMODA +4 more
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