Results 1 to 10 of about 114,979 (192)

The role of oxygen vacancies in the electronic and optical properties of κ-Ga2O3 [PDF]

Communications Chemistry
Oxygen vacancies are regarded as crucial defects greatly affecting the electronic and optical properties of oxide films and devices, yet systematic studies on κ-Ga2O3 are still lacking.
Wenyong Feng, Paiwen Fang, Yiming Zhang, Danfeng Zhu, Jun Liang, Zedong Lin, Xiaozeng Wang, Yanli Pei   +7 more
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Atomic-scale quantification of individual oxygen vacancies and structural evolution in valence change memristors [PDF]

Nature Communications
Elucidating the valence change mechanism in oxides memristors remains challenging due to subtle oxygen vacancy migration. Here, we quantify individual oxygen vacancies and observe their dynamic evolution during resistive switching using in-situ ...
Zhengzhou Wang, Weixiao Lin, Yongqiang Li, Meiyan Wang, Anan Guo, Hao Luo, Xiahan Sang, Lei Jin, Cheng Chen, Wen Zhao, Heguang Liu, Rafal E. Dunin-Borkowski, Jinsong Wu   +12 more
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Oxygen Vacancies on Hydrated Anatase (101) Surfaces: Insights from Classical and Ab Initio Molecular Dynamics Simulations [PDF]

Nanomaterials
Hydrated anatase (101) titanium dioxide surfaces with oxygen vacancies have been studied using a combination of classical and ab initio molecular dynamics simulations.
Fredrik Grote, Alexander Lyubartsev
doaj   +2 more sources

Prediction of perovskite oxygen vacancies for oxygen electrocatalysis at different temperatures. [PDF]

Nat Commun
Efficient catalysts are imperative to accelerate the slow oxygen reaction kinetics for the development of emerging electrochemical energy systems ranging from room-temperature alkaline water electrolysis to high-temperature ceramic fuel cells. In this work, we reveal the role of cationic inductive interactions in predetermining the oxygen vacancy ...
Li Z, Mao X, Feng D, Li M, Xu X, Luo Y, Zhuang L, Lin R, Zhu T, Liang F, Huang Z, Liu D, Yan Z, Du A, Shao Z, Zhu Z.   +15 more
europepmc   +7 more sources

Oxygen Vacancy, Oxygen Vacancy–Vacancy Pairs, and Frenkel Defects in Cubic Lutetium Oxide [PDF]

The Journal of Physical Chemistry C, 2020
Electronic and structural properties of cubic Lu2O3 with either single oxygen vacancy, oxygen vacancy-vacancy pair or a Frenkel pair (oxygen vacancy and interstitial oxygen) were analyzed using ab ...
A. Shyichuk, E. Zych
openaire   +1 more source

Roles of Oxygen Vacancies in NiMoO4: A First-Principles Study

Frontiers in Energy Research, 2021
Oxygen vacancy has been suggested to play a role in the electrochemical ability of NiMoO4. The band structure and density of state of NiMoO4 bulks with different concentrations of oxygen vacancy were investigated by the first-principles calculation ...
Yuanbin Wen, Yuanbin Wen, Pengcheng Wang, Pengcheng Wang, Xinying Ding, Xinying Ding, Xiaobo Feng, Xiaobo Feng, Chen Qing, Chen Qing   +9 more
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Oxygen vacancies modulated Co3O4 toward highly efficient electrooxidation of 5-hydroxymethylfurfural

Results in Engineering, 2023
Electrochemical oxidation of 5-hydroxymethylfurfural (HMF) has emerged as a promising method to produce highly valuable chemicals. Co-based electrocatalysts with oxygen vacancies are one of the most promising candidates. However, the relationship between
Guangjian Song, Liuhua Mu, Panzhe Qiao, Li Yang, Min Zhang, Fangfang Dai, Lixiong Dai, Hao Wu, Zhonggui Gao, Guosheng Shi, Sanzhao Song   +10 more
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Real-Time Identification of Oxygen Vacancy Centers in LiNbO₃ and SrTiO₃ during Irradiation with High Energy Particles

Crystals, 2021
Oxygen vacancies are known to play a central role in the optoelectronic properties of oxide perovskites. A detailed description of the exact mechanisms by which oxygen vacancies govern such properties, however, is still quite incomplete.
Miguel L. Crespillo, Joseph T. Graham, Fernando Agulló-López, Yanwen Zhang, William J. Weber   +4 more
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Extended planar defects of oxygen vacancies in ferroelectric $$\hbox {BaTiO}_3$$ BaTiO 3 and impact on ferroelectricity

Scientific Reports, 2023
Extended defects of vacancies in ferroelectrics (FE), where vacancies spread over an extended space, are of critical importance in terms of understanding the long-standing problems such as polarization fatigue and aging.
Shaohui Qiu, Huaxiang Fu
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Formation mechanism and roles of oxygen vacancies in melt-grown Al2O3/GdAlO3/ZrO2 eutectic ceramic by laser 3D printing

Journal of Advanced Ceramics, 2022
Laser three-dimensional (3D) printing has become a significant technique to fabricate high-performance Al2O3-based eutectic ceramics based on melt growth.
Haifang Liu, Haijun Su, Zhonglin Shen, Hao Jiang, Di Zhao, Yuan Liu, Yinuo Guo, Xiang Li, Min Guo, Jun Zhang, Lin Liu, Hengzhi Fu   +11 more
doaj   +1 more source