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Studies on Frustrated Spin Chains and Quasi-One-Dimensional Conjugated Carbon Systems
(2018-01-28)
In this thesis, we investigate the entanglement and magnetic properties of frustrated spin systems and correlated electronic properties of conjugated carbon systems.
In chapter 1, we present different approaches to solve ...
Materials Chemistry in Search of Energy Materials : Photovoltaics and Photoluminescence
(2017-11-28)
One third of world’s total energy is used in production of electricity and one fifth of the total electricity produced in the world is used in lighting. Hence, the materials that have high potential in the field of ...
Exploring Transition Metal Oxides Towards Development of New Functional Materials : Lithium-ion Battery Cathodes, Inorganic Pigments And Frustrated Magnetic Perovskite Oxides
(2017-10-11)
Transition metals (TMs) are ‘elements whose atoms have partially filled d-shell, or which can give rise to cations with an incomplete d-shell’. In TMs, the d-shell overlaps with next higher s-shell. Most of the TMs exhibit ...
Novel Synthesis Of Transition Metal And Nobel Metal Ion Substituted CeO2 And TiO2 Nanocrystallites For Hydrogen Generation And Electro-Chemical Applications
(2011-06-30)
Ceria based materials have attracted a great deal of interest particularly in area of UV shielding, oxide ion conductivity, solid state electrolyte for fuel cells, automotive exhaust catalysis, water gas shift (WGS) reaction ...
Studies On Advanced Lead-Acid Batteries
(2011-09-30)
Subsequent to the studies on precursor lead-acid systems by Daniel, Grove and Sindesten, practical lead-acid batteries began with the research and inventions of Raymond Gaston Planté in France as early as in 1859, and, ...
Real-Time DMRG Dynamics Of Spin And Charge Transport In Low-Dimensional Strongly Correlated Fermionic Systems
(2014-12-11)
This thesis deals with out-of-equilibrium transport phenomena in strongly correlated low-dimensional fermionic systems, with special emphasis on π-conjugated molecular materials. The focus of this work is to study real-time ...
Investigation Of Phase Separation In Bulk Heterojunction Solar Cells Via Self-assembly Approach And Role Of Organic Fluorine In Design Of n-type Molecular Semiconductors
(2014-05-01)
The present thesis is focused on rational design and synthesis of π-conjugated donoracceptor-donor (D-A-D) type oligomers and D-A type copolymers. Thesis is organized in seven chapters, apart from introduction remaining ...
Studies On Nanostructured Transition Metal Oxides For Lithium-ion Batteries And Supercapacitoris
(2011-01-21)
Rechargeable Li-ion batteries and supercapacitors are the most promising electrochemical energy storage devices in terms of energy density and power density, respectively. Recently, nanostructured materials have gained ...
Studies On Polymer Hydrogel Electrolytes For Application In Electrochemical Capacitors And Direct Borohydride Fuel Cells
(2010-07-26)
In recent years, electrochemical capacitors have emerged as devices with the potential to enable major advances in electrical energy storage. Electrochemical capacitors (ECs) are akin to conventional capacitors but employ ...
Influence Of Nanostructuring On Electrochemical Performance Of Titania-Based Electrodes And Liquid Electrolytes For Rechargeable Lithium-Ion Batteries
(2013-02-12)
The present thesis deals with the beneficial influence of nanostructuring on electrochemical performance of certain promising electrode and electrolyte materials for lithium-ion batteries (LIBs). Electrochemical performances ...