Gurumurthy S C

Gurumurthy S C
Manipal Academy of Higher Education | MAHE · Department of Physics

Ph.D

About

24
Publications
1,434
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
57
Citations
Citations since 2016
13 Research Items
35 Citations
201620172018201920202021202205101520
201620172018201920202021202205101520
201620172018201920202021202205101520
201620172018201920202021202205101520

Publications

Publications (24)
Article
Full-text available
Nanofluids are a class of fluids prepared by dispersing nanoparticles in conventional base fluids. Owing to their excellent thermo-physical properties, nanofluids find potential applications in manufacturing industries. They are introduced to overcome the limitation with using traditional base fluids like water having low thermal conductivity (~ 0....
Article
Full-text available
In the present work, gold (Au), silver (Ag), and copper (Cu) based mono- and bimetallic NPs are prepared using a cost-effective facile wet chemical route. The pH for the synthesis is optimized in accordance with the optical spectra and supported by the finite difference time domain simulation studies. FESEM and TEM micrographs are used to analyze t...
Article
In this present work, we have synthesized silver nanoparticles (AgNPs) using the chemical reduction method and systematically studied the effect of AgNPs of different loading into polyvinyl alcohol/sodium bromide (PVA/NaBr) polymer electrolytes. X-ray diffraction and Fourier transform infrared spectroscopy confirmed the variation in the crystallini...
Article
Full-text available
Textile and clothing industry effluents are the primary source of water pollution, affecting aquatic animals and plants. The need of the hour is to filter these effluents to avoid contamination. Nanofiltration using carbon-based membranes is an effective method in dye filtration. The present work describes graphene oxide (GO) and reduced graphene o...
Article
In the present work, a systematic study on structural, electrical, linear, and nonlinear optical properties of Zn doped CdO thin films prepared by Spray Pyrolysis (SP) technique is reported. X-ray diffraction (XRD) studies revealed the cubic, wurtzite structure, and polycrystalline nature of all the films. The observed results showed a decrease in...
Article
Full-text available
Bimetallic nanoparticles (BNPs) have drawn significant attention due to their numerous applications. They demonstrate enhanced optical, electrical, thermal, and catalytic properties due to the synergistic effects of monometals present in them. In this work, CuAg and AuAg BNPs have been synthesized using a facile and economical chemical reduction me...
Article
Full-text available
Volatile organic compounds (VOCs) are harmful to human beings and animals. VOCs include a carbon compound and its derivatives. VOCs irritate the eyes, ears, and throat, ahigh concentration of VOCs may cause cancer; also, it affects the central nervous system. A concentration below 0.3 mg/m³ is harmless, above which it is harmful to human beings. Th...
Article
Full-text available
Perovskite-structured Dy-doped BZT–BCNT system has been investigated with variation of Dy doping through the solid-state reaction method. X-ray diffraction (XRD) and microscopic studies confirm the results in the rhombohedral stoichiometry without any secondary phases and uniform grain growth, respectively. Tolerance factor and electronegativity al...
Article
Full-text available
The optical and morphological properties of the vacuum-evaporated silver (Ag) nanoparticulate films on softened polyvinyl alcohol (PVA) modified with the 3-mercaptopropyl trimethoxysilane (MPTMS) and 3-aminopropyl trimethoxysilane (APTMS) dopants are reported. The topography of the particulate films is characterized by the field-emission scanning e...
Article
Full-text available
One-step wet chemical method has been employed for the synthesis of silver (Ag) nanofluids followed by the preparation of polyvinyl pyrrolidone (PVP), polyvinyl alcohol (PVA) and PVP–PVA mixed-dispersant-stabilized nanofluids by varying the concentration ratio of dispersants for the viscosity and thermal conductivity analysis. The optical absorptio...
Conference Paper
This article highlights the influence of ternary material combination of thermoelectric 0.5Bi2Te3 (BT), ferroelectric 0.5(PLZT9/65/35) (PLZT) nanopowders dispersed in polymer PVDF matrix to form a 0.5Bi2Te3-0.5[Pb0.91La0.09(Zr0.65Ti0.35)0.9775O3]-PVDF nanocomposite thin film. BT and PLZT were prepared by using simple precipitation method to form 0....
Article
Results of the investigations carried out on the optical properties of silver nanoparticulate films deposited on the electron beam irradiated blends of polystyrene (PS) and poly(4-vinylpyridine) (P4VP) are reported. Sub-surface silver particulate films are deposited at a constant deposition rate of 0.4 nm/s on irradiated blends held at 455 K in a v...
Article
Results of the investigations carried out on the optical properties of silver particulate films deposited at a rate of 0.4 nm/s on softened polystyrene and poly(4-vinylpyridine) (P4VP) blends held at 455 K are reported. Under the conditions of deposition, a sub-surface particulate structure is expected. It had been shown earlier that themorphology...
Article
The depth distribution of silver particulate films deposited on softened polystyrene substrates has been studied through Rutherford backscattering spectrometry (RBS). 150 nm thick silver films were deposited on polystyrene (PS) coated glass substrates held at 455 K and 490 K in a vacuum of 8 x 10(-6) Torr. The substrates were irradiated with 8 MeV...
Article
Results of the investigations carried out on the electrical behavior of silver particulate films deposited on electron beam irradiated polystyrene (PS) coated substrates held at a temperature of 455K in a vacuum of 8×10−6 torr at a constant deposition rate of 0.4nm/s are reported. It is known that when metals are evaporated on to softened polymer s...
Article
Results of the investigations carried out on the optical properties of particulate films deposited on 8 MeV electron beam irradiated polystyrene (PS) and on blends of PS and Poly (4‐vinyl pyridine) (P4VP) are reported. It is observed that absorption maxima shift towards higher wavelength for films deposited on irradiated polystyrene and on blend...
Article
Results of the studies on the effect of 8MeV electron beam irradiation of polystyrene substrates on the morphology of silver particulate films deposited at 455K in a vacuum of 8×10−6Torr are reported. Optical absorption studies show the presence of transverse and longitudinal plasmon resonance for films deposited on irradiated polystyrene. Scanning...
Article
Results of the investigations carried out on the optical properties of silver nanoparticulate films deposited on softened polystyrene (PS) doped with 3‐Mercaptopropyltrimethoxysilane (MPTMS) are reported. Optical absorption studies show two plasmon resonance maxima for silver deposited on MPTMS doped PS substrates indicating a change in morphol...
Article
Full-text available
The depth distribution of silver particulate films deposited on softened polystyrene substrates has been studied through Rutherford backscattering spectrometry (RBS). 150 nm thick silver films were deposited on polystyrene (PS) coated glass substrates held at 455 K and 490 K in a vacuum of 8 � 10�6 Torr. The substrates were irradiated with 8 MeV el...
Article
Results of the studies carried out on the electrical behaviour of silver island films deposited on the blends of polystyrene (PS) and poly (4-vinylpyridine) (P4VP) are presented here. The substrates were held at 457 K, much above the glass transition temperature of both the polymers to ensure sufficient polymer fluidity during deposition, to obtain...

Network

Cited By