Results 231 to 240 of about 115,078 (291)
Unraveling Oxygen Vacancies Effect on Chemical Composition, Electronic Structure and Optical Properties of Eu Doped SnO2. [PDF]
Nanomaterials (Basel)Mashkovtsev MA +6 more
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Role and regulation of surface oxygen vacancies in vanadium-based oxides for chemical looping oxidative dehydrogenation of propane. [PDF]
Chem SciLuo D +7 more
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A machine learning-assisted study of the formation of oxygen vacancies in anatase titanium dioxide. [PDF]
RSC AdvWang D +6 more
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Regulating oxygen vacancies in ammonium vanadate electrode materials for advanced aqueous zinc ion batteries. [PDF]
iScienceZhao M, Li S, Wu X, Sun L.
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Oxygen vacancies in lithium tantalate
Physical Review B, 1985Lithium tantalate crystals turn ``black'' when annealed above approximately 850 \ifmmode^\circ\else\textdegree\fi{}C in an argon atmosphere. The resulting optical absorption spectrum has a distinct peak at 460 nm but also extends through the entire visible and near ultraviolet.
, Kappers +3 more
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Applied Physics Letters, 2005
The electronic properties of ZnO have traditionally been explained by invoking intrinsic defects. In particular, the frequently observed unintentional n-type conductivity has often been attributed to oxygen vacancies. We report first-principles calculations showing that the oxygen vacancy VO is not a shallow donor, but has a deep e(2+∕0) level at ∼1 ...
Anderson Janotti, Chris G. Van de Walle
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The electronic properties of ZnO have traditionally been explained by invoking intrinsic defects. In particular, the frequently observed unintentional n-type conductivity has often been attributed to oxygen vacancies. We report first-principles calculations showing that the oxygen vacancy VO is not a shallow donor, but has a deep e(2+∕0) level at ∼1 ...
Anderson Janotti, Chris G. Van de Walle
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2008 17th IEEE International Symposium on the Applications of Ferroelectrics, 2008
Oxygen vacancy clustering in SrTiO3-? thin films has been investigated by electrical transport and photoemission spectroscopy. We deposited SrTiO3-? thin films on LaAlO3(001) substrate at reducing oxygen ambients. The carrier density did not increase with decreasing the ambient oxygen pressure.
null Euiyoung Choi +3 more
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Oxygen vacancy clustering in SrTiO3-? thin films has been investigated by electrical transport and photoemission spectroscopy. We deposited SrTiO3-? thin films on LaAlO3(001) substrate at reducing oxygen ambients. The carrier density did not increase with decreasing the ambient oxygen pressure.
null Euiyoung Choi +3 more
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Physica B: Condensed Matter, 2003
Abstract We present our investigations on the absorption and emission properties of the neutral oxygen vacancy in ZnO. Temperature-dependent photoluminescence (PL) experiments allow to determine the zero-phonon-energy of the emission and its phonon-coupling parameters.
F. Leiter +5 more
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Abstract We present our investigations on the absorption and emission properties of the neutral oxygen vacancy in ZnO. Temperature-dependent photoluminescence (PL) experiments allow to determine the zero-phonon-energy of the emission and its phonon-coupling parameters.
F. Leiter +5 more
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Radiation Effects and Oxygen Vacancies in Silicates
Science, 1970Proton and electron irradiation of silicates, minerals, and rocks produces a paramagnetic defect whose resonance spectrum is identical to that of the singly charged oxygen vacancy in silica glass and α-quartz. It is suggested that this defect is characteristic of all structures containing SiO 4 tetrahedra.
A, Chatelain, J L, Kolopus, R A, Weeks
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