Photoluminescence Properties of Rare Earth Niobium Containing Oxides and Flux Synthesis of Rare Earth Transition Metal Containing Oxides

<p>La1-xEuxKNaNbO5 (x = 0.1-1), La1-xTbxKNaNbO5 (x = 0.1-0.4) and Tb0.1La0.9-xEuxKNaNbO5 (x = 0-0.1) photoluminescent materials were successfully synthesized by a solid-state reaction. La1-xEuxKNaNbO5 (x = 0.1-1) and La1-xTbxKNaNbO5 (x = 0.1-0.4) exhibit room-temperature photoluminescence with orange-red and green emissions, respectively. In addition, the excitation and emission spectra are same as the pure EuKNaNbO5 and TbKNaNbO5 compounds. For Tb0.1La0.9-xEuxKNaNbO5 (x = 0-0.1), as the energy can be transferred from Tb3+ to Eu3+, the color was correspondingly modified from green to yellow to orange. </p> <p>Synthesize oxides by molten hydroxide fluxes is an effective method. My works have been focused on the preparation of rare-earth and transition metal containing oxides using hydroxide flux route, which has resulted in the synthesis of several oxides, namely Dy3TaO7, LaCoO3 and LaFeO3.</p>

Name thesis:degree_name

M.S.

Level thesis:degree_level

Campus Access Thesis

Discipline thesis:degree_discipline

Chemistry and Biochemistry

Year

2011

Author dc:creator

• Shan, Zhichao

Contributors dc:contributor

• Hans-Conrad zur Loye
• Daniel Reger

• Chemistry
• Physical Sciences and Mathematics

Statement dc:rights

• © 2011, Zhichao Shan

Repository record dc:identifier

https://scholarcommons.sc.edu/etd/733

OAI identifier oai:identifier

oai:scholarcommons.sc.edu:etd-1734