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Gedelonium Oxide Nanophosphors Prepared By Hydrothermal Method
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Book Synopsis Gedelonium Oxide Nanophosphors Prepared By Hydrothermal Method by : Dr. B. M. Manohara
Download or read book Gedelonium Oxide Nanophosphors Prepared By Hydrothermal Method written by Dr. B. M. Manohara and published by Nitya Publications. This book was released on 2020-01-01 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrothermally synthesized rare-earth oxide compounds such as Nd2O3, Dy2O3, Gd2O3, Eu2O3, Y2O3, etc. and hydroxide ompounds such as Y(OH)3, Dy(OH)3, Gd(OH)3, Eu(OH)3, Tb(OH)3, etc. have been widely used as high-performance luminescent devices, atalysts and other functional materials based on the electronic, optical and chemical characteristics arising from their 4f electrons. In the rystallization process, surfactant molecules adsorbed on the crystal nuclei serve not only as a growth director but also as a protector to prevent from aggregation of the product. As a result, nanorods were produced. Cetyl trimethyl ammonium bromide (CTAB) and exadecylamine (HDA) surfactant are plays a key role in controlling the growth and production of oxide phosphors in the hydrothermal method.
Book Synopsis Rare Earth Activated Gedelonium Oxide Nanophosphors by : Dr. B. M. Manohara
Download or read book Rare Earth Activated Gedelonium Oxide Nanophosphors written by Dr. B. M. Manohara and published by Nitya Publications. This book was released on 2020-01-01 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phosphor materials find wide applications ranging from fluorescent display to luminescence immunoassay. These materials essentially convert one type of energy in to visible radiation and hence, phosphor materials are called optical transducer. They are generally crystalline in nature. Phosphors with high quantum efficiency, effective excitation and absorption, colour parity, longer ifetime and lower cost, as well as better morphology are required. Surface properties have important function for hosphors.Spherical phosphors are optimum morphology in application. The spherical particles are easy to be packed density so that the screen and display can obtain high definition. In addition the dense packed small particles can prevent phosphors from aging.
