Now showing items 1-10 of 12
CHARACTERIZATION OF SECONDARY PHASES IN Cd0.9Zn0.1Te DETECTOR GRADE SEMICONDUCTOR BY IR TRANSMISSION MICROSCOPE AND IMPLEMENTATION OF AMPOULE ROTATION TECHNIQUE IN MODIFIED VERTICAL BRIDGMAN GROWTH TO MINIMIZE THE SECONDARY PHASES
Presence of secondary phases (precipitates/inclusions) in cadmium zinc telluride (CZT) crystals degrades the performance of the materials as radiation detectors. The infrared (IR) transmission microscope was used to quantify ...
Persistant Photoconductivity of Strontium Titanate
Strontium titanate (SrTiO$_3$) is a transparent conducting oxide with a range of interesting properties, including a large, temperature-dependent dielectric constant and superconductivity at low temperatures. It has a wide ...
Electrical and Optoelectronic Properties of Two-Dimensional Materials
Electrical and optoelectronic properties of bulk semiconductor materials have been extensively explored in last century. However, when reduced to one-dimensional and two-dimensional, many semiconductors start to show unique ...
Atomic Jump Frequencies in Intermetallic Compounds Studied Using Perturbed Angular Correlation of Gamma Rays
Atomic jump frequencies were determined in a variety of intermetallic compounds through analysis of nuclear relaxation of spectra measured using the nuclear hyperfine technique, perturbed angular correlation (PAC) of gamma ...
EXCIMER LASER INTERACTION WITH ZINC OXIDE
When single crystal ZnO is exposed to 193-nm laser photons in vacuum at fluences below 100 mJ/cm
Pressure-Induced Phase Transitions of Indium Selenide
In2Se3 has potential as a phase-change material for memory applications. Understand- ing its phase diagram is important to achieve controlled switching between phases. Pressure-dependent phase transitions of In2Se3 bulk ...
Experimental investigations of a proposed chromophore correlation model of self healing of Disperse Orange 11 doped in Poly (methyl methacrylate)
We studied photodegradation and recovery of amplified spontaneous emission (ASE) in Disperse Orange 11 dye doped in Poly(methyl methacrylate)(PMMA) as a function of dye concentration and sample temperature. A simple ...
STRATEGIC APPROACHES TOWARDS SOLVING CRITICAL CHALLENGES IN CRYSTAL GROWTH OF DETECTOR GRADE Cd0.9Zn0.1Te INCLUDING MELT MIXING TECHNIQUES
Over the last few decades Cadmium Zinc Telluride (CZT) has emerged as a novel material for radiation detection in homeland security as well as medical applications and as substrates for epitaxial growth of infrared detector, ...
Manipulating neuronal activity with low frequency transcranial ultrasound
Stimulation of the rodent cerebral cortex is used to investigate the underlying biological basis for the restorative effects of slow wave sleep. Neuronal activation by optogenetic and ultrasound stimulation elicits changes ...