2010•Physics ExperimentationRequires access

Structure and optical properties of Pr-doped nano Sr_(0.2)Ca_(0.8)TiO_3

Haibin Yang

Abstract

Sr0.2 Ca0.8TiO3∶Pr nano-powders are prepared by sol-gel method.The composition is signified by ultraviolet-visible absorption spectra,X-ray diffraction and TEM.Further more,the changes of structure and diameter of the nano-particle prepared at various growth temperatures are analyzed,and the luminescent character is given.The experiment result indicates that the optimum synthesis temperature is 600 ℃.

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Key concepts: Materials science, Nano-, Doping, Luminescence, Diffraction, Absorption (acoustics), Sol-gel, Absorption spectroscopy