Modified Bismuth Layered Perovskite Ferroelectrics for Photocatalysis - Venkatesan, Senthil
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Aurivillius compound SrBi2Ta2O9 (SBT) is a futuristic material with applications mainly in ferroelectric memory devices. This is due to their excellent fatigue resistance and other electrical properties. Most importantly, all the constituents of parent material and/or by modifications, as a whole are environmentally safe. Here, we presented the various physical properties such as structural, surface morphology, electrical and photocatalytic analysis of SBT and its substitutions (Ce4+, Dy3+ and Y3+). Substitutions at A-site and Bi-layer effectively modifies the electrical properties as well as…mehr

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Produktbeschreibung
Aurivillius compound SrBi2Ta2O9 (SBT) is a futuristic material with applications mainly in ferroelectric memory devices. This is due to their excellent fatigue resistance and other electrical properties. Most importantly, all the constituents of parent material and/or by modifications, as a whole are environmentally safe. Here, we presented the various physical properties such as structural, surface morphology, electrical and photocatalytic analysis of SBT and its substitutions (Ce4+, Dy3+ and Y3+). Substitutions at A-site and Bi-layer effectively modifies the electrical properties as well as photocatalytic analysis. Trivalent elemental substitutions at A-site induce cation vacancies to satisfy the charge neutrality, which significantly improves the ferroelectric property. The various functions are used to analyze the electrical parameters. Finally, the photogenerated electrons and holes are separated spontaneously by ferroelectric domains to enhance the H2/O2 evolution. For a better understanding of ferroelectric as a photocatalyst, the relation between electrical and photocatalytic properties are correlated.
Autorenporträt
Dr. Senthil V is a CSIR-Research Associate at NIT Rourkela, India. He received his Ph.D. in Physics from NIT-Rourkela in 2018. His research interests include Electroceramics, Polymer/ceramic composites and Organic perovskites for Energy and Environment. He has published 20 papers in peer-reviewed Journals and also a reviewer of many journals.