Gedelonium Oxide Nanophosphors Prepared By Hydrothermal Method PDF Download
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Author | : Dr. B. M. Manohara |
Publisher | : Nitya Publications |
Total Pages | : 84 |
Release | : 2020-01-01 |
Genre | : Business & Economics |
ISBN | : 8194433177 |
Download Gedelonium Oxide Nanophosphors Prepared By Hydrothermal Method Book in PDF, ePub and Kindle
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.
Author | : Dr. B. M. Manohara |
Publisher | : Nitya Publications |
Total Pages | : 177 |
Release | : 2020-01-01 |
Genre | : Juvenile Nonfiction |
ISBN | : 8194550491 |
Download Rare Earth Activated Gedelonium Oxide Nanophosphors Book in PDF, ePub and Kindle
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.