Oxygen Vacancies in Perovskite Oxide Piezoelectrics
نویسندگان
چکیده
منابع مشابه
Vacancies Job in Oxide Perovskite Thin Films
Point defects can affect considerably the structural, magnetic, and transport properties of perovskite-structure materials with chemical formula ABO3. Oxygen vacancies (VO), for example, enable ionic conductivity in perovskite-based solid solutions to be used for electrochemical applications such as solid oxide fuel and electrolysis cells [1]. Likewise, VO can distort significantly the equilibr...
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Oxygen vacancies have been implicitly assumed isolated ones, and understanding oxide materials possibly containing oxygen vacancies remains elusive within the scheme of the isolated vacancies, although the oxygen vacancies have been playing a decisive role in oxide materials. Here, we report the presence of oxygen vacancy linear clusters and their orientation along a specific crystallographic d...
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Quasi oxygen-deficient indium tin oxide nanoparticles (ITO NPs) were prepared by photoinduced chlorine doping, and exhibited much enhanced electrocatalytic activity for oxygen reduction reaction (ORR) in alkaline media, as compared with pristine ITO.
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Perovskite structures including oxygen vacancies are the most important group of the oxygen preamble membranes. These membranes have potentially attractive applications in the membrane reactors for partial oxidation of methane. Doping Perovskite phase in order to increase the oxygen vacancies and oxygen permeation, besides Perovskite structure stability, has been the main approach of the recent...
متن کاملLAO/STO and oxygen vacancies: dielectric modeling
Let’s model the LAO/STO system as two dielectrics films of infinite extent in the xy plane and finite slabs in the z direction. The dielectric constant of LAO will be 1 and that of STO will be 2. The thicknesses will be d1 and d2. The z axis runs orthogonal to these films: z = 0 will be the LAO surface, z > 0 will be the vacuum above the LAO film, z = −d1 will be the LAO/STO interface, and z = ...
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ژورنال
عنوان ژورنال: Materials
سال: 2020
ISSN: 1996-1944
DOI: 10.3390/ma13245596