Title

Study of Host-to-Activator Energy Transfer Efficiency of YBO3:Pr3+

Presenter Information

Max Wallace

Document Type

Oral Presentation

Location

SURC 271

Start Date

17-5-2012

End Date

17-5-2012

Abstract

Inorganic solid-state luminescent materials (phosphors) are used in a variety of technologies, including plasma display panels, Hg- free lamps, and computer monitors. Understanding the trapping efficiency of electron transport in phosphors is the focus of this research. Host to activator transfer efficiency and photoluminescence properties were studied for Pr3+ doped YBO3 phosphor under VUV excitation. Transfer efficiencies were traditionally calculated using a proportional kinetic model in which only one trap state exists. However, Pr3+ activated YBO3 particles exhibit an energy relationship in which two trap states exist. A hybrid of the original anticipated kinetic based model is proposed in which multiple trap states can be evaluated.

Faculty Mentor(s)

Anthony Diaz

Additional Mentoring Department

Chemistry

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May 17th, 3:00 PM May 17th, 3:20 PM

Study of Host-to-Activator Energy Transfer Efficiency of YBO3:Pr3+

SURC 271

Inorganic solid-state luminescent materials (phosphors) are used in a variety of technologies, including plasma display panels, Hg- free lamps, and computer monitors. Understanding the trapping efficiency of electron transport in phosphors is the focus of this research. Host to activator transfer efficiency and photoluminescence properties were studied for Pr3+ doped YBO3 phosphor under VUV excitation. Transfer efficiencies were traditionally calculated using a proportional kinetic model in which only one trap state exists. However, Pr3+ activated YBO3 particles exhibit an energy relationship in which two trap states exist. A hybrid of the original anticipated kinetic based model is proposed in which multiple trap states can be evaluated.