Document Type
Thesis
Date of Degree Completion
Spring 2008
Degree Name
Bachelor of Science
Department
Chemistry
Committee Chair
Dr. Anthony Diaz
Second Committee Member
Dr. Dion Rivera
Third Committee Member
Dr. Andrew A. Piacsek, Science Honors Research Program
Abstract
This paper reports on the synthesis and VUV optical characterization ofSrY2O4 doped with Eu³+. SrY2O₄:Eu³+ was synthesized from Y2O₃, Eu2O₃, and SrCO₃, with 5% excess SrCO₃ by weight; the mixture was fired at 1050 °C for 12 hrs in air twice; phase pure product was confirmed with powder X-ray diffraction. Reflectance data on an undoped sample reveals a band gap of about 6.leV. Results indicate that Eu³ occupies two non-equivalent Y sites within theSrY2O₄ framework. Calculation of maximum transfer efficiency forSrY2O₄:Eu³+ resulted in 60% with 35% lost to non-radiative decay via surface states.
Recommended Citation
Atkins, Ryan Elliot, "Synthesis and Optical Characterization of SrY₂0₄:Eu3+" (2008). Undergraduate Honors Theses. 91.
https://digitalcommons.cwu.edu/undergrad_hontheses/91
Comments
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