Lanthanide-doped gallium nano-garnets: structure and luminescence

ISBN-13: 9786202074933 / Angielski / Miękka / 2017 / 212 str.

Vemula Venkatramu; Mamilla Rathaiah

Opis

The lanthanide (Ln3+) ion doped inorganic materials are an important class of luminescent materials for applications in solid-state lasers, light converters, temperature and pressure sensors, phosphors for solid state lighting, display devices, bio-imaging, photovoltaic, photocatalysis, etc. The single crystals doped with Ln3+ ions are well known, but their preparation is time-consuming and also sophisticated equipment is needed. The solid-state reaction method is simpler to produce powders with micrometer size by pulverization with shortcomings of formation of a surface dead layer, thereby lowering the luminescence efficiency. The facile techniques to synthesize the crystals directly in the nanometer regime have eliminated the need for such practices and have inspired a wealth of new possibilities. Hence, it stimulates an interest to synthesize Ln3+ doped A3Ga5O12 (A = Gd, Y, and Lu) nano-garnets by low cost and environmentally benign method. The development of nano-luminescent materials for a specific application requires the detailed investigations on structural, morphological, vibrational, and luminescence properties, here studied all these properties.

O autorze

Dr. Venkatramu is a faculty of Physics at Yogi Vemana University, India. He received Ph.D. from Sri Venkateswara University, India in 2006. He visited Italy, Germany & Spain for his Post-Doctoral Research. His research area is synthesis and characterization of rare-earth-doped optical materials for photonics. He published 62 international journals.