نتایج جستجو برای: perovskite type oxide
تعداد نتایج: 1509342 فیلتر نتایج به سال:
The use of water splitting has been investigated as a good alternate for storing electrical energy. While the general interest in developing non-toxic, high-performance, and economically feasible catalysts oxygen evolution reaction (OER) is noteworthy, there also significant research. Recently, perovskite-type oxides have performed an alternative to non-precious metal can act new class effectiv...
In this work La0.7Sr0.3MnO3 , one group of nanosized perovskite-type oxides were prepared by sol-gel method. The perovskite structure has been characterized by X-ray diffraction (XRD) , scanning electron microscopy (SEM) , energy dispersive X-ray spectrometer (EDX) and Fourier transform infrared (FTIR) . The nanoparticles showed the excellent adsorption properties towards reactive blue 4 (RB4) ...
Perovskite MOS Structures In article number 2101004, José M. V. Cunha and co-workers demonstrate that AC measurements performed on metal–oxide–semiconductor devices (MOS) allow for the study of density interface defects fixed oxide charges present in electron transport layer/perovskite interface, allowing development highly-efficient perovskite solar cells, which have several applications, e.g....
Global optimization is used to study the structure of the polar KTaO3 (001) surface. It is found that cation exchange near the surface leads to the most stable structure. This mechanism is likely to be general to metal oxides containing cations of differing charge.
Perovskite oxides hosting ferroelectricity are particularly important materials for modern technologies. The ferroelectric transition in the well-known oxides BaTiO3 and PbTiO3 is realized by softening of a vibration mode in the cubic perovskite structure. For most perovskite oxides, octahedral-site tilting systems are developed to accommodate the bonding mismatch due to a geometric tolerance f...
We confirmed the influence of ZnO nanoparticle size and residual water on performance of all inorganic perovskite solar cells. By decreasing the size of the ZnO nanoparticles, the short-circuit current density (Jsc) and open circuit photovoltage (Voc) values are increased and the conversion efficiency is improved. Although the Voc value is not affected by the influence of residual water in the ...
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