Browsing Division of Physical and Mathematical Sciences by Subject "Nanotechnology"
Now showing items 1-15 of 15
-
Carbon Dots for Next-generation Artificial Lighting Devices
Energy conservation has become a major concern globally in today’s world and artificial lighting (AL) accounts to ~50% of total energy consumption. With increase in population accompanied by modern civilization there is a ... -
Charge Transport And Magnetic Properties Of Iron-embedded Multiwall Carbon Nanotubes
(2014-06-12)Studies on charge transport properties in carbon nanotubes (CNTs) have been a subject of great interest for a long time not only as an important topic in fundamental science, but also as a basic requirement for the application ... -
Charge Transport In Transparent Single-Wall Carbon Nanotube Networks And Devices
(2010-06-02)Carbon nanotubes show a wide range of transport behavior that varies from ballistic to hopping regime, depending on the nature of disorder in the system. Minute variations in disorder can lead from weak to strong localization, ... -
Electrical And Magnetic Properties Of Polyvinylchloride - Amorphous Carbon / Iron Carbide Nanoparticle Comosites
(2009-05-18)The UV-Visible spectra of a-C composites and nano composites have provided a very useful information about the electronic states and band structure. The UV-Visible spectra of a-C as well as nanoparticle are qualitatively ... -
Growth Aspects And Phonon Confinement Studies On Ion Beam Sputter Deposited Ultra Thin Films
(2011-03-01)The broad theme of the present research investigation is on the preparation and characterization of the ultra thin films. The emerging field of nano science and technology demands the realization of different materials in ... -
Low Temperature Charge Transport And Magnetic Properties Of MWNTs/MWNT-Polystyrene Composites
(2014-11-19)Carbon nanotubes (CNTs) have been recognized as potential candidates for mainstream device fabrication and technologies. CNTs have become a topic of interest worldwide due to their unique mechanical and electrical properties. ... -
Phonon Anomalies And Phase Transitions In Pyrochlore Titanates, Boron Nitride Nanotubes And Multiferroic BiFeO3 : Temperature- And Pressure-Dependent Raman Studies
(2013-09-13)This thesis presents experimental and related theoretical studies of pyrochlore titanate oxides, boron nitride nanotubes, and multiferroic bismuth ferrite. We have investigated these systems at high pressures and at low ... -
Preparation and Optical Properties of Hybrid Assemblies of Metallic Gold Nanoparticles and Semi-Conducting CdSe Quantum Dots
(2018-04-16)This thesis summarizes the methods of preparation and optical properties of hybrid assemblies of Au NPs and cadmium selenide (CdSe) QDs. First chap-ter deals with the literature survey and theoretical aspects of plasmonics ... -
Probing Magnetic And Structural Properties Of Metallic Nanowires Using Resistivity Noise
(2013-07-19)The main focus of this thesis work has been the study of domain wall (DW) dynamics in disordered cylindrical nanomagnets. The study attempts to accurately quantify the stochasticity associated with driven (temperature/magnetic ... -
Resistance Fluctuations And Instability In Metal Nanowires
(2009-03-13)The principal aim of this thesis is to study the electrical transport properties of metal nanowires. Specifically, we have focussed on investigating the resistance fluctuations of Ag and Cu nanowires of diameters ranging ... -
Structural, Electronic And Vibrational Properties Of n-layer Graphene With And Without Doping : A Theoretical Study
(2011-07-11)Graphene – a two-dimensional honeycomb lattice of sp2-bonded carbon atoms – has been attracting a great deal of research interest since its first experimental realization in 2004, due to its various novel properties and ... -
Studies On Carbon Nanotubes
(2010-09-21)The unique electronic, mechanical and physical properties led Carbon nanotubes (CNTs) to be potential candidate for field emitter, hydrogen storage, sensors, nano electronic devices, nano electromechanical systems, polymer ... -
Study of Optical Properties of Semiconductor Quantum Dot Based Hybrid Nano Assemblies
(2017-11-28)Over the last few decades, a vast research is going on, to study the optical properties of the nano particles i.e., metal and semiconductors thoroughly. Till date most of the optical studies are based on single particle ... -
Synthesis And Electronic Properties Of Nanowires Of Charge Transfer Complexes
(2011-07-11)In case of charge-transfer complex of TTF:TCNQ lot of work had previously been done on single crystals and thin films to study various interesting properties including phase transitions which were attributed to Peierls ... -
Synthesis, Optical And Photoelectrical Investigations On PbS nano-,micro-structures
(2010-10-21)The thesis describes the synthesis of PbS nano-, micro-structures by colloidal and hydrothermal techniques. Size and morphology dependent luminescence studies were carried out in detail. Application oriented studies like ...