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Synthesis of Oxide and Spinel Nanocrystals for Use in Solid State Lighting

Title: Synthesis of Oxide and Spinel Nanocrystals for Use in Solid State Lighting.
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Name(s): Foley, Megan Elizabeth, author
Strouse, Geoffrey F., professor directing dissertation
Landing, William M., university representative
Stiegman, Albert E., 1953-, committee member
Dudley, Gregory B., committee member
Florida State University, degree granting institution
College of Arts and Sciences, degree granting college
Department of Chemistry and Biochemistry, degree granting department
Type of Resource: text
Genre: Text
Issuance: monographic
Date Issued: 2015
Publisher: Florida State University
Place of Publication: Tallahassee, Florida
Physical Form: computer
online resource
Extent: 1 online resource (190 pages)
Language(s): English
Abstract/Description: In this dissertation, microwave chemistry is employed to synthesize a variety of different crystalline nanoparticles (NPs). This introduction will describe the structures, properties and applications of the NPs studied within the dissertation, with a main focus being on ligand sensitization for the goal of enhanced luminescence. The use of metal acetylacetonate complexes to make Europium (III) doped Ytrrium (Y₂O₃) NPs is explored, where the acetylacetonate acts both as a source of oxygen for the synthesis of Y₂O₃, as well as an organic chromophore acting as an "antenna" for the absorption of light and subsequent excitation transfer to the incorporated Europium (III) (Chapter 2). Other host materials are investigated by method of metal acetylacetonate decomposition to synthesize a variety of different nanospinels, having the general formula AB₂X₄, with sulfide variants made by decomposition of diethyldithiocarbamate, (Chapter 3). The antenna ligand thenoyltrifluoroacetone (tta), which is known to undergo a Dexter energy transfer (DET) mechanism to efficiently sensitize Europium (III) emission, is used to determine the distance of energy transfer in Europium (III) doped nanospinels by passivating the surface of the nanospinel with a tta (Chapter 4). A variety of ligands are explored in order to optimize the sensitization efficiency in relation to the difference in energy between the singlet and triplet levels of the ligands versus the ⁵D₀ and ⁵D₄ energy levels of Europium (III) and Terbium (III) respectively (Chapter 5).
Identifier: FSU_2015fall_Foley_fsu_0071E_12919 (IID)
Submitted Note: A Dissertation submitted to the Department of Chemistry and Biochemistry in partial fulfillment of the Doctor of Philosophy.
Degree Awarded: Fall Semester 2015.
Date of Defense: October 28, 2015.
Bibliography Note: Includes bibliographical references.
Advisory Committee: Geoffrey F. Strouse, Professor Directing Dissertation; William M. Landing, University Representative; Albert E. Stiegman, Committee Member; Gregory B. Dudley, Committee Member.
Subject(s): Chemistry
Materials science
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_2015fall_Foley_fsu_0071E_12919
Owner Institution: FSU

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Foley, M. E. (2015). Synthesis of Oxide and Spinel Nanocrystals for Use in Solid State Lighting. Retrieved from http://purl.flvc.org/fsu/fd/FSU_2015fall_Foley_fsu_0071E_12919