Materials Research Centre (MRC): Recent submissions
Now showing items 61-80 of 202
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Exploration of exfoliation, functionalization and properties of MXenes via first-principles and machine learning
The monolayers of early transition metal carbides and carbonitrides named MXenes are exfoliated from the corresponding bulk MAX phases (Mn+1AXn, M = early transition metal, A = group IIIA or IVA element and X = carbon ... -
Towards high quality V2O5 and VO2 thin films for gas sensing, smart windows and optoelectronic applications
The global demand for improved living standards coupled with rising pollutant or hazardous gases levels, safety and security demands have led to increased demand for miniaturized gas sensors and photodetectors. Production ... -
Vanadium Dioxide: Bulk and Thin Films for Device Applications
In the present era, energy consumption is more than the energy that is generated for which renewable as well as non-renewable sources are used. In order overcome this lag, researchers are developing smart materials ... -
Electrical and Opto-Electronic Devices Based on SnSe2 Thin Films
SnSe2 is a semiconductor with unique and interesting properties such as band gap with layer thickness dependence. Theoretically, it has been predicted that the band gap can be varied between 1.2 and 2.04 eV. This range of ... -
Accelerated search for thermoelectric and topological materials using first-principles and machine learning
In summary, we have performed first-principles calculations to study the topological phase transitions in chalcopyrite compounds as a function of hydrostatic pressure. These compounds are topological insulators in the ... -
Thin Films of TiO2 by MOCVD : Precursor Development, Film Growth and Microstructure, Optical and Electrical Properties
TiO2 is a well-known and very attractive material owing to its chemical stability, biocompatibility, and remarkable electrical and optical properties. Indeed, it exhibits a high dielectric constant and resistivity, a high ... -
Understanding quantitative process physics of 3D binderjet printing with validation in Ti-6Al-4V and inkjet bioprinting of mammalian cells
In the field of additive manufacturing, laser or electron beam based 3D printing is widely investigated for biomedical applications. However, much less explored is the binderjet 3D printing, which allows processing of ... -
Defect Engineering and Doping of 2D Transition Metal Dichalcogenides: A First-Principles Study
The foundation of the electronic industry is based on n-type and p-type semiconductor materials, which is obtained by the ubiquitously present point defects. The presence of defects affects the electronic and optoelectronic ... -
Investigations into the Synthesis, Structural, Dielectric and Optical Properties of Multifunctional M2NaNb5O15 (M=Ba, Sr) Nanocrystals and Glass Nanocrystal Composites
The physical properties of borate-based glasses comprising crystallites of inorganic materials (polar) at different length scales have become increasingly important owing to their importance in the design and fabrication ... -
Structural and Electrochemical Investigation of Fluoro(hydroxy)phosphate Based Cathode Materials for Secondary Batteries
Structural and electrochemical investigation of LiFePO4OH hydroxyphosphate material. The synthesis and structure of this material is explained. The hydrothermally synthesized material crystallizes in triclinic structure ... -
Quest for New Chalcopyrite Semiconductors for Photodetector Applications
Photodetectors are widely used as image sensors, in optical communication, remote sensing etc. IR detectors find widespread applications in night vision cameras and medical diagnostics. In this thesis a new chalcopyrite ... -
Investigations of Borocarbonitrides and Nanocarbons
The thesis consists of three parts of which Part 1 describes the investigations of borocarbonitrides. In this Part, Section 1.1 provides the synthesis and characterization of different compositions of borocarbonitrides. ... -
New Avenues to Transition Metal-Based Water Splitting Electrocatalysts
Solar energy is by far the most abundant renewable resource available to mankind. However, it is diffused and intermittent, and often geographically separated from that of the production results in underwhelming utilization ... -
Efficient Photodetectors Based on Reduced Graphene Oxide
Chapter 1: In chapter 1, we have presented a brief introduction on photodetector and its various applications. Chapter 2: Chapter 2 is the discussion about experimental methods and characterization tools. In this chapter, ... -
Rational Designing of Bifunctional Electrocatalysts for Electrochemical Energy Conversion and Storage Devices
Depleting fossil fuels, increasing environmental concerned and looming energy crisis motivates researcher around the globe to explore some of the possible eco-friendly energy alternative resources. Among various available ... -
Overcoming Challenges Associated with Hydrogen Storage Efficiency and Fuel Cell Catalysis : An Ab Initio Study
Fuel cells offer the best solution to the imminent energy and environmental crisis staring at our face, urging the scientific community to overcome all the challenges faced by its effective commercialization. These harness ... -
Integration of AlGaN with (111) Si Substrate by MOCVD
AlGaN is an important semiconductor material for electronic and optoelectronic applications. The change in composition of AlGaN (AlN to GaN) provides a range of bandgaps extending from 6.01 eV, far ultraviolet, to 3.4 ... -
III- Nitride Thin Films and Nanostructures on Si(111) by Plasma Assisted Molecular Beam Epitaxy
This thesis focuses on studying heterostructures of GaN, Silicon and AlN. GaN nanostructures are grown on bare Si (111) with and without a GaN buffer layer and GaN film was grown on an AlN layer. Apart from the material ... -
Electrical and Non-linear Optical Properties of LiTa(Nb)O3 Nanostructures Evolved in Borate Glass Matrices
The design, fabrication and application of materials that are of dimension(s) in the nanoscale form the basis of nanotechnology. Nanotechnology thrives owing to the anomalous, unique or even at times, extraordinary physical ... -
InGaN Based 2D, 1D and 0D Heterostructures on Si(111) by Plasma Assisted Molecular Beam Epitaxy
The present research work focuses on the growth and characterization of group III-Nitride (InGaN) epitaxial layers as well as nanostructures on Si(111) substrates. The growth system used in this study was a plasma-assisted ...