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Now showing items 21-30 of 53
Studies On Pure And Modified Antiferroelectric PbZrO3 Thin Films
(2010-04-06)
Metal oxides crystallized in perovskite structure are generally modified in two different ways. According to the general structural formula ABO3, the two ways are A-site modification and B-site modification. The primary ...
Thermoelectric Properties Of Manganese And Ytterbium Filled Cobalt Antimonide(CoSb3)
(2010-09-22)
Thermoelectric materials are solid state devices having the capability to convert heat to electrical energy and vice versa. These materials are simple, have no moving parts and use no greenhouse gases. But the major ...
Studies On Epitaxial Perovskite Biferroic Heterostructures
(2010-04-08)
The present research work focuses on the fabrication and characterization of epitaxial heterostructures of 0.7 Pb(Mg1/3N2/3)O3 – 0.3 PbTiO3 (PMN-PT) and La0.6Sr0.4MnO3 (LSMO) using multi target pulsed laser ablation ...
Thin Films From Metalorganic Precursors : ALD Of VO2 And CVD Of (Al1-xGax)2O3
(2010-04-08)
Thin films and coatings of oxides are used in various fields of science and technology, such as semiconductor and optoelectronic devices, gas sensors, protective and wear resistant coatings etc. Of late, there has been a ...
Vapour Pressure Studies Of Precursors And Atomic Layer Deposition Of Titanium Oxides
(2010-07-16)
This thesis describes the deposition of thin films of titanium oxide and Magnéli phases of titanium oxide by atomic layer deposition (ALD) using a novel β-ketoesterate precursor. Titanium oxide is a promising candidate for ...
Functional Noble Metal, Bimetallic And Hybrid Nanostructures By Controlled Aggregation Of Ultrafine Building Blocks
(2010-12-30)
Functional nanomaterials are gaining attention due to their excellent shape and size dependent optical, electrical and catalytic properties. Synthesizing nanoparticles is no longer novel with the availability of a host of ...
Synthesis And Characterization Of One-Dimensional Oxide Nanostructures
(2010-12-08)
Nanostructured materials especially, one-dimensional (1D) nanostructures have unique physical, chemical, mechanical properties and are the building blocks for a range of nanoscale devices. The procedure employed for the ...
Molten-salt Synthesis Of Nanocrystalline Strontium Antimony Manganese Oxide (Sr2SbMnO6) : A Gaint Dielectric Constant Material
(2010-12-03)
High dielectric constant materials are of technological importance as they lead to the miniaturization of the electronic devices. For instance, in the case of memory devices based on capacitive components, such as static ...
Ferroelectric Perovskite Superlattices By Pulsed Laser Ablation
(2010-03-18)
Fabrication of artificially structured superlattices, when controlled on a nanoscale level, can exhibit enhanced dielectric properties over a wide temperature range. Possible fabrication of new functional devices based on ...
Rotational Spectroscopic And Ab Initio Studies On The Weakly Bound Complexes Containing 0-H...π And S-H...π Interactions
(2010-11-22)
Work reported in this thesis mainly comprises of the assignments and analysis of the rotational spectra and structures of three weakly bound complexes: C2H4•••H2S, C6H5CCH•••H2O and C6H5CCH•••H2S. All the data have been ...