High-throughput methods to optically functional oxide and oxide-nitride materials
Henderson, S.J., Armstrong, J.A., Hector, A.L. and Weller, M.T. (2005) High-throughput methods to optically functional oxide and oxide-nitride materials. Journal of Materials Chemistry, 15, (15), 1528-1536. (doi:10.1039/b415808c).
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High-throughput methods have been used for the synthesis and preliminary characterisation of optically functional ceramic oxide and oxide-nitride materials on an alumina substrate. Gel routes have been investigated for their viability when used with a Teflon masking system. Three different systems and deposition methodologies have been studied. The first system uses a polymer complex method based on citric acid and ethylene glycol in aqueous media to create arrays of the formula Ca1-xSrxZr1-yCryO3 (0 ≤x≤ 1, in 0.2 steps; 0 ≤y≤ 0.24, in 0.03 steps) annealed at temperatures of 600, 800, 1000 and 1200 degrees C. A metal alkoxide sol-gel method using an acetic acid-acetic anhydride solvent has been employed to produce arrays of oxides and oxide nitrides with the general formulae SrZr1-xTaxO3 and SrZr1-xTaxO2+xN1-x (0 ≤x≤ 1, in 0.2 steps). Arrays of aluminium-doped zinc oxides, as potential transparent conducting oxides, have been produced through hydrolysis of a zinc acetate-ethylene glycol precursor using aluminium nitrate solutions while tin-doped indium oxides were obtained by direct evaporation and calcination of indium and tin solutions. Conversion of these oxide arrays to oxide-nitride arrays was carried out by reaction of the deposited SrZr1-xTaxO3 materials under high purity flowing ammonia. Initial characterisation of arrays has been undertaken using powder X-ray diffraction, scanning electron microscopy and UV-vis spectroscopy.
|Keywords:||combinatorial synthesis, high-efficiency, thin-films, excitation, discovery, phosphors, search, powder, system|
|Subjects:||T Technology > T Technology (General)
Q Science > QD Chemistry
|Divisions:||University Structure - Pre August 2011 > School of Chemistry
|Date Deposited:||28 Feb 2006|
|Last Modified:||06 Aug 2015 02:20|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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