Document Type

Thesis

Date of Degree Completion

Spring 2017

Degree Name

Master of Science (MS)

Department

Chemistry

Committee Chair

Anthony Diaz

Second Committee Member

Dion Rivera

Third Committee Member

Benjamin White

Abstract

Host-sensitized luminescence of yttrium phosphate doped with trivalent lanthanide elements prepared via two synthetic approaches was studied using VUV spectroscopy. A correlation between an unusually intense 150 nm excitation intensity and the ground state energy level of select trivalent lanthanide elements was proposed. Using spectroscopy, the host-to-activator transfer efficiencies of YPO4:Ln3+ (Ln3+ = Sm3+, Eu3+ and Tb3+) were evaluated for two synthetic approaches. Electron-hole pair trapping efficiencies and Sloss values were calculated using published kinetic models.

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