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Title: Optical and morphological properties of sol gel derived titanium dioxide films

Titanium oxide (Titania) thin films were synthesized on different substrates via the sol-gel dip-coating method using alkoxide solution. Some selected samples were also prepared with different percentage of Lead (Pb). The influence of Pb addition in precursor sol on the optical properties of titanium dioxide thin films was studied. The optical transmittance in the visible region has increased with increase in weight percentage of lead. The refractive index was slightly decreased with Pb addition. Crystallization of these coatings was achieved through thermal annealing at temperatures above 400 °C. The structural properties and surface morphology of the crystallized coatings were studied by Scanning Electron Microscopy. Increase in average grain size from 250 nm to 350 nm with increase in Pb concentration is observed. Films were appeared to more coarse with increase in Pb addition. An increase in Pb addition resulted increase in average roughness from 12 nm to 25 nm.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Department of Physics, Nabira Mahavidyalaya, Katol-441302 (India)
  2. Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore-560012 (India)
  3. Department of Physics, Govt. Science College, Bangalore-560067 (India)
  4. Department of Instrumentation, Indian Institute of Science, Bangalore-560012 (India)
Publication Date:
OSTI Identifier:
22488783
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANNEALING; COATINGS; CONCENTRATION RATIO; CRYSTALLIZATION; DIP COATING; GRAIN SIZE; LEAD; MORPHOLOGY; REFRACTIVE INDEX; ROUGHNESS; SCANNING ELECTRON MICROSCOPY; SOL-GEL PROCESS; SUBSTRATES; SURFACES; THIN FILMS; TITANIUM OXIDES