Accession Number : ADA323235

Title :   The Development of Novel Optical Materials Via Quantum Dot-Doped Sol-Cel Hosts.

Descriptive Note : Final rept. 1 Aug 92-31 Aug 96,

Corporate Author : OKLAHOMA STATE UNIV STILLWATER DEPT OF CHEMISTRY

Personal Author(s) : Knobbe, E. T.

PDF Url : ADA323235

Report Date : 31 AUG 1996

Pagination or Media Count : 16

Abstract : The research performed on this grant began with the study of CdS quantum dots in a sol gel host as an enhancement to semiconductor-doped glass systems. The CdS dots were synthesized via inverse-micellar chemistry, which is shown to be capable of compositionally-homogeneous semiconductor colloids. The results involving synthesis and optical characterization of solution-derived, quantum-dot-doped materials is discussed, including preliminary results on transition-metal doping of CdS dots. The final year of the grant was focused on the growth of nanostructures on glass substrates by pulsed-laser deposition (PLD). A series of thin films composed of binary through quaternary II-VI semiconductors were deposited on silica substrates. The work includes deposition from stoichiometric PLD targets as well as targets which were alternated to achieve the desired stoichiometry. The films were characterized by absorption spectroscopy.

Descriptors :   *OPTICAL MATERIALS, *DOPING, *CADMIUM SULFIDES, *SOL GEL PROCESSES, TRANSITION METALS, SPECTROSCOPY, SOLUTIONS(MIXTURES), SYNTHESIS, SILICON DIOXIDE, THIN FILMS, SUBSTRATES, PULSED LASERS, SEMICONDUCTORS, GLASS, DEPOSITION, ABSORPTION SPECTRA, TERNARY COMPOUNDS, QUATERNARY COMPOUNDS, COLLOIDS, STOICHIOMETRY, BINARY COMPOUNDS.

Subject Categories : Inorganic Chemistry
      Laminates and Composite Materials
      Optics
      Quantum Theory and Relativity

Distribution Statement : APPROVED FOR PUBLIC RELEASE