Sāngola, India
Sāngola, India

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Abhange P.B.,Raje Ramrao Mahavidyalaya | Malvade V.C.,Raje Ramrao Mahavidyalaya | Chandralingam S.,Jawaharlal Nehru Technological University | Thombare J.V.,Vidnyan Mahavidyalaya | Kokare S.R.,Raje Ramrao Mahavidyalaya
Materials Letters | Year: 2016

The BaNd1.96La0.04Ti3O10 (La-BNT) sample was prepared by solid state reaction method. The prepared sample was characterized by different techniques. The structural study was carried out by X-ray diffraction (XRD) technique. The morphological study is carried out by scanning electron microscopy (SEM) technique. The surface morphological study showed that the La-BNT hexagonal bricks are randomly oriented. The electrical study of La-BNT pellet was made with the help of resistivity measurement and impedance analysis. The resistivity plot showed that sample is in highly resistive state. The resistivity study showed that thermally induced mobility of the charge carriers may develop in La-BNT pellet. The activation energy Ea was obtained from the DC resistivity data and it was found that 0.47 eV which shows n-type semiconductor. © 2016 Elsevier B.V. All rights reserved.


Patil J.S.,K.B.P. Mahavidyalaya | Dhasade S.S.,Vidnyan Mahavidyalaya | Babar A.R.,Shankarrao Mohite Patil Mahavidyalaya Akluj | Patil S.,Pratap Singh Mohite Patil Mahavidyalaya Karmala | Fulari V.J.,Shivaji University
Superlattices and Microstructures | Year: 2015

Zinc sulfide thin films were deposited on stainless steel and indium doped tin oxide substrates from an aqueous solution of ZnSO4, and Na2S2O3. This study reports the effect of bath conc. on the crystal structure, surface morphology, optical properties and compositional analysis of zinc sulfide nanostructured thin films. The electrodeposition time and bath concentration can be used to control the dimensions of the electrodeposited nanoflakes within nanometer range. Zinc sulfide thin films are polycrystalline with cubic crystal structure. SEM images indicate that the film surfaces are well-covered with zinc sulfide nanoflakes. The agglomeration of nanoflakes is enhanced due to the formation of large number of particles during growth process. A Raman shift of sample is detected at wave number 254 cm-1. Typical film deposited with optimized bath concentration shows optical band gap of about 3.83 eV. © 2015 Elsevier Ltd. All rights reserved.


Dhasade S.S.,Vidnyan Mahavidyalaya | Patil J.S.,K.B.P. Mahavidyalaya | Kim J.H.,Chonnam National University | Han S.H.,Hanyang University | And 2 more authors.
Materials Chemistry and Physics | Year: 2012

CuS thin films were deposited on stainless steel substrates from an aqueous solution of CuSO 4, Na 2S 2O 3 and Triethanolamine. Deposited films were characterized by XRD, SEM, EDAX, Raman and Optical measurements. The electrodeposition bath concentration can be used to control the diameter of the electrodeposited nanorods within the range of 35-40 nm. The formation of complexes of copper ions and TEA was found to be a key factor in the nanorods growth process. Films are polycrystalline with hexagonal crystal structure. SEM images indicate that the film surfaces are smooth, homogeneous and well-covered. A new structure of CuS nanorods having length of 5-10 μm and diameter from 35 to 40 nm has been demonstrated. By changing bath concentration and keeping deposition time fixed the agglomeration of rods is enhanced due to the formation of large number of particles during growth process. Raman shifts of samples are detected at wave numbers 473 cm -1. Typical film deposited with optimized bath concentration shows optical band gap of about 2.73 eV. © 2012 Elsevier B.V. All rights reserved.


Dhasade S.S.,Vidnyan Mahavidyalaya | Patil S.,Vidnyan Mahavidyalaya | Rath M.C.,Bhabha Atomic Research Center | Thombare J.V.,Shivaji University | Fulari V.J.,Shivaji University
Materials Letters | Year: 2013

The electron beam irradiation could be used to control the dimensions of the electrodeposited copper selenide nanostructures in the nanometer scale. Copper selenide nanostructures with rose flower and hibiscus nanopetals of various dimensions and lengths were obtained by the electron beam irradiation. This study reports the effect of irradiation of 2 MeV electron beam on the crystal structure, surface morphology, optical properties and compositional analysis of copper selenide nanostructured thin films. Upon electron beam irradiation, the band gap energy of copper selenide decreases from 2.53 to 2.39 eV along with an increase in the crystal size for dose up to 45 kGy. Similarly, X-ray diffraction studies show that the crystal size of copper selenide decreases from 11 to 6 nm with electron dose of 50 kGy and the materials exhibit poor crystallization with increase in the band gap energy up to 2.62 eV. © 2013 Elsevier B.V.


Dhasade S.S.,Vidnyan Mahavidyalaya | Patil S.,Vidnyan Mahavidyalaya | Kale B.B.,C MET | Han S.H.,Hanyang University | And 2 more authors.
Materials Letters | Year: 2013

Copper sulfide hollow spheres were formed by irradiating thin films with 7 MeV electron beam. The electron beam irradiated films were characterized using X-ray diffraction, scanning electron microscopy and UV-vis absorption techniques. During electron beam irradiation, the process of formation of the CuS nanoparticles appeared to be initiated by an electron fluence of 2×1013 electrons cm-2 that further depends on the dose rate. X-ray diffraction measurements reveal that the crystal size decreases from 12 nm to 5 nm with an electron dose of 50 kGy. This signifies that there is a drastic change in morphology and crystallinity with electron beam irradiation. The change in morphology and crystallinity is due to increased surface temperature with electron dose. © 2012 Elsevier B.V.


Thombare J.V.,Vidnyan Mahavidyalaya | Thombare J.V.,Shivaji University | Lohar G.M.,Shivaji University | Shinde S.K.,Shivaji University | And 3 more authors.
Electronic Materials Letters | Year: 2015

Polypyrrole thin films were prepared by galvanostatic mode of electrodeposition. The applied constant current density changes structural, optical and surface wettability properties of polypyrrole thin films. The prepared films were characterized for structural, optical and surface wettability study. Fourier transform infrared spectroscopy shows the benzoid and qunoid like structures in polypyrrole films. The UV-Visible absorption study shows that the optical density varies with the applied deposition current density. The band gap energy calculated from the Tauc’s plot was found to be 2.25 eV and shows the film is in semiconductor nature. The surface wettability study confirms hydrophilic nature of polypyrrole films. © 2015, The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht.


Dhasade S.S.,Vidnyan Mahavidyalaya | Patil S.,Vidnyan Mahavidyalaya | Rath M.C.,Bhabha Atomic Research Center | Fulari V.J.,Shivaji University
Materials Letters | Year: 2013

Manganese sulfide nanostructures with various dimensions were obtained by irradiating electrodeposited thin films. The irradiation dose could be used to control the diameter of the electrodeposited nanostructures within the range of nanometer scale. This study reports the effect of irradiation of 7 MeV electron beam on the surface wettability and optical properties of MnS nanostructured thin films. The photoluminescence intensity was found to increase with increase in the absorbed dose from 10 to 50 kGy. The fluence of the electron beam was 2×1013 electrons/cm2. The crystal size was found to decrease upon electron beam irradiation and the materials exhibit poor crystallization. Similar results were also observed in the X-ray diffraction studies, where peak intensity decreased upon electron beam irradiation. © 2013 Elsevier B.V. All rights reserved.


Patil J.S.,K.B.P. Mahavidyalaya | Dhasade S.S.,Vidnyan Mahavidyalaya | Rath M.C.,Bhabha Atomic Research Center | Thombare J.V.,Shivaji University | Fulari V.J.,Shivaji University
Materials Science in Semiconductor Processing | Year: 2014

In this work we employed an electron irradiation technique to prepare zinc sulfide nanoflakes with various dimensions by irradiating electrodeposited thin films. This study reports the effect of irradiation of 2 MeV electron beam on the crystal structure, surface morphology, optical properties and photosensitive properties of zinc sulfide thin films. The electron beam irradiated films were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM) and the ultraviolet-visible (UV-vis). Upon electron beam irradiation, the band gap energy of zinc sulfide decreases from 3.61 to 3.31 eV along with an increase in the crystal size form 47-78 nm. The fluence of the electron beam was 2×1013 electrons/2 μs cm2. The crystal size was found to increase upon electron beam irradiation and materials exhibit better crystallization. Similar results were also observed in the X-ray diffraction studies, where peak intensity increased upon electron beam irradiation. © 2014 Elsevier Ltd.


Bugad R.A.,Sangola College | Mane T.R.,Sangola College | Navale B.B.,Vidnyan Mahavidyalaya | Thombare J.V.,Vidnyan Mahavidyalaya | And 2 more authors.
Journal of Materials Science: Materials in Electronics | Year: 2016

Interlocked nanoparticles of La3+ substituted magnesium zinc ferrites (La-MZF) with general formula Mg0.6Zn0.4La2yFe2–2yO4 (where y = 0.0, 0.05, 0.1, 0.15, 0.20 and 0.25) have been synthesized using co-precipitation method. The structural and micro-structural properties of prepared sample were characterized by different physical and chemical characterization techniques. The X-ray diffraction analysis was carried out to confirm the single-phase cubic spinel structure of La3+ substituted magnesium zinc ferrites. The lattice constant, X-Ray density, physical density, porosity, particle size, site radii (RA and RB), bond lengths (A–O and B–O) are calculated for the samples. As composition y varies from 0.00 to 0.25; lattice constant decreases from 8.4514 to 8.4488 Å, due to the large difference of ionic radius of La3+ and other cations. SEM micrographs were obtained. The surface morphology of La-MZF shows that the interlocked nanoparticles with average grain size varying from 300 to 95 nm. Also, energy dispersive analysis by X-ray shows the presence of all the metals in the exact composition as that of precursors used for preparation of samples. © 2016 Springer Science+Business Media New York


Dhasade S.S.,Vidnyan Mahavidyalaya | Kadam A.B.,Vidnyan Mahavidyalaya | Thombare J.V.,Shivaji University | Fulari V.J.,Shivaji University
2013 International Conference on Energy Efficient Technologies for Sustainability, ICEETS 2013 | Year: 2013

Copper selenide nanorods fused at both ends with various diameters and lengths were obtained by irradiating electrodeposited thin films. The irradiation dose can be used to control the diameter of the electrodeposited nanorods to within the range of 70-100 nm. This paper reports the effect of high-energy (7 MeV) electron beam irradiation on the optical properties of CuSe thin films grown by conventional electrodeposition method on steel substrates. Upon irradiation the band gap energy increased from a value of 2.82 eV to 3.03 eV where as there is a drastic change in their morphology. The grain size increases with electron beam irradiation and material become poor crystalline. Similar results were observed in the X-ray diffraction studies, where peak intensity decreases with electron beam irradiation. © 2013 IEEE.

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