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Filtering by: Committee Member Proebsting, William M. Remove constraint Committee Member: Proebsting, William M. Subject Phosphors Remove constraint Subject: Phosphors

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  • Synthesis and study of transparent p- and n-type semiconductors and luminescent materials

    Creator:
    Park, Cheol-Hee
    Abstract:
    New transparent p- and n-type semiconductors and luminescent materials have been prepared and characterized. Synthesis, structures, optical and electrical properties of new chalcogenide fluoride p-type transparent semiconductors MCuQF (M=Ba, Sr; Q=S, Se, Te) are described. Band-gap tuning and improvement in conductivity through p-type doping are demonstrated in the family. The...
    Resource Type:
    Dissertation
    Full Text:
    members: Dr. Janet Tate, Dr. John F. Wager, Dr. Wei Kong, and Dr. William M. Hetherington for many

  • High quantum-yield phosphors via quantum splitting and upconversion

    Creator:
    Jeong, Joayoung
    Abstract:
    The Gd3+ ion has been used to induce quantum splitting in luminescent materials by using cross-relaxation energy transfer (CRET). In Nd:LiGdF4, quantum splitting results from a two-step CRET between Gd3+ and Nd3+, first involving a transition 6G→6I on Gd3+ and an excitation within the 4f3 configuration of Nd3+ followed by...
    Resource Type:
    Dissertation
    Full Text:
    , Michael M. Lerner, William W. Warren, Jr., and John E. Baham for their encouragement in helping me to