Conveners
Technical Session 03: Plenary Talk 02 & Track 02 Oral Presentations (1st half)
- A Bhattacharjee (NIT-Meghalaya)
Description
Material Science and Nano-science, Quantum Information Theory (& Plenary Talk 2)
$SnO_2$, a n-type metal oxide semiconductor with a wide band gap of 3.6 eV has emerged as a potent gas sensing material. The gas sensing properties of $SnO_2$ can be further enhanced by doping it with foreign metals, noble elements and metal oxides in addition to reducing it to nanometer size. In this work we have studied the gas sensing performance of tin oxide by reducing it to nanometer...
Abstract: In this work, carbon quantum dots (CQDs) were synthesized from banana peels using a cost-effective green hydrothermal method. The CQDs were characterized using UV-Vis and PL spectroscopy. UV-visible spectrophotometric investigations confirmed the presence of carbon dots showing two absorption peaks at ~252 nm and ~282 nm. The CQDs exhibit blue luminescence when exposed to ultraviolet...
In today’s world, the quest of multitasking ability of nanoparticles, especially quantum dots (QDs), is profoundly envisioned due to their analogousness with the atoms/molecules leading to the generation of discrete energy level, which is preeminent to various parallel applications viz, solar cells, LEDs, drug delivery, bio-markers, tracers, antibiotics etc. Amongst all drug delivery is...
Bidyut B Saikia1,4, Nabajyoti saikia2, Jyoti Prasad Gogoi3 and Prince K Mochahari4
1Department of Physics, C N B College, Bokakhat 785612, India
2Department of Chemistry, Kaziranga University, Jorhat 785006, India
3Department of Physics, D K D College, Dergaon 785614, India
4Department of Physics, Bodoland University, Kokrajhar 783370, India
E-mail: sbidyutbikash@gmail.com
Abstract:...
Fuel cells are projecting as beneficial energy conversion device and popular among researchers as ecofriendly, cost effective with high output alternative to traditional fuel. The component bipolar plates (BPs) in fuel cell unit distribute gases (H2 and O2), prevent gas leakage and guide the flow of electricity and heat within the stack. Sustainability of BP is determined by working efficiency...
In today’s IOT based world, tactile sensors play a vital role in providing information arising from physical interaction with surrounding environment. Amongst various types of tactile sensors, piezoelectric nanogenerator based sensors are quite effective owing to their efficient performance under any small external stimuli. Especially polymer based flexible piezoelectric nanogenerators are...
In the realm of nanotechnology, the synthesis of nanoparticles with unique properties and applications continues to be a subject of intense research. Due to its higher electrical as well as thermal conductivity, strong anti-biocidal activities and higher catalytic activity for oxidation of ethylene, silver nanoparticle (Ag-NP) has become intensively studied metal nanoparticles. In this work,...
We have explored spherical AuNPs anchored GO modified PEDOT-PSS based bioelectrode for sensing mycotoxin (especially, Aflatoxin B1). Synthesis of PEDOT-PSS over ITO electrode was carried out by adapting simple electrochemical polymerization technique in presence of GO as dopant. Further, uniform distribution of AuNPs on the surface of GO/PEDOT-PSS/ITO electrode was achieved by electrochemical...
Quantum dots are nanostructured semiconductor materials whose dimension is comparable to the de Broglie wavelength of free electrons. Due to the quantum confinement effect, the motion of the electrons present in the quantum dots is restricted in all three dimensions and the electronic energy states become quantized as compared to their bulk counterparts. This quantization of energy states...
The growing world energy demands, limited fossil fuel resources, as well as considerations based on greenhouse gas emissions, are motivating the search for viable renewable energy sources. Among the possibilities, solar energy conversion is of great interest because it is globally available, inexhaustible, and electrical energy can be converted to other energy currencies such as hydrogen....
The topic of structural color is crucial in the current world since it affects both industrial applications and our day-to-day lives. The current study delves further into the significance of microstructures in determining the visual appearance of three distinct colors of bougainvillea flower petals: pink, yellow-orange, and white. With the aid of a field-emission scanning electron microscope...
Abstract: Plants and their extracts play a crucial role in the green synthesis of nanoparticles because of their environmental friendliness. In this work, an efficient hydrothermal approach was used to synthesize gold nanoparticles (GNps) using tea leaf extract. The GNps were characterized using UV-Vis and PL spectroscopy. UV-visible spectrophotometric investigations confirmed the presence of...
Plasma fireball and dominant instabilities: A brief overview
Subham Dutta and Pralay Kumar Karmakar
Department of Physics, Tezpur University, Napaam-784028, Tezpur, Assam, India
Email: subham.dtta@gmail.com, subhamd@tezu.ernet.in
Abstract: An externally biased electrode submerged in a plasma chamber excites a plethora of waves and instabilities [1]. One of the special...
The ever-increasing demand for energy in day-to-day life thrives the world towards developing highly efficient, powerful energy storage devices. Since its commercialization by SONY in 1991, the lithium-ion batteries (LIBs) have revolutionized the energy sector and been used as a major power source in various portable electronic devices and electric cars. But in light of the concerns like...
Abstract
Recently, atmospheric dielectric barrier discharge (A-DBD) has gained recognition as a practical technique for modifying the surface properties of polymers. It has the ability to alter the chemical and physical properties of material surfaces at room temperature without any change to their bulk properties. For this study, A-DBD plasma treatment has been carried out on electrospun...
Nanocrystalline (Mg0.95Zn0.05)TiO3 thin films were deposited on to quartz and Pt/TiO2/SiO2/Si substrates by radio-frequency reactive magnetron sputtering. The (Mg0.95Zn0.05)TiO3 sputtering target was prepared by solid state reaction method. The effect of deposition gas ratio i.e. ratio of oxygen and argon (O2/Ar) on structural and optical properties of (Mg0.95Zn0.05)TiO3 thin films were...
The conversion of mechanical energy into electrical energy through the triboelectric nanogenerator (TENG) which works on the principle of triboelectrification and charge induction, is one of the methods to harvest mechanical energy from our surroundings and biomechanical movements. The external stimuli like pressure, humidity, sweat, temperature, etc can affect the output performance of a...
Fatty acid Langmuir monolayers and multilayers are very fascinating two-dimensional system formed at the air-water interface. These layers show thermodynamically metastable behaviours through different phases and phase transitions. Langmuir-Blodgett (LB) films provide the transfer of monolayer onto solid surfaces to study their morphological, structural, and optical properties. Similarly,...
In this paper, we have examined the vital field of gas sensors, which is crucial for environmental monitoring, industrial safety, and healthcare. One of the most important properties of gas sensors is their selectivity, or their capacity to precisely identify and discriminate particular gases in intricate combinations. Selectivity is influenced by a number of important parameters, some of...
