S
Sudipta Bandyopadhyay
Researcher at University of Calcutta
Publications - 84
Citations - 1666
Sudipta Bandyopadhyay is an academic researcher from University of Calcutta. The author has contributed to research in topics: Magnetization & Doping. The author has an hindex of 21, co-authored 79 publications receiving 1389 citations. Previous affiliations of Sudipta Bandyopadhyay include Indian Association for the Cultivation of Science.
Papers
More filters
Journal ArticleDOI
Study of structural and electrical properties of grain-boundary modified ZnO films prepared by sol–gel technique
TL;DR: In this paper, the electrical conductivity of ZnO films has been studied in order to elucidate the structural and electrical properties at low temperature, showing that zinc monoacetate is an intermediate product prior to the formation of zinc hydroxide.
Journal ArticleDOI
Structural, optical and electrical studies on sol–gel deposited Zr doped ZnO films
TL;DR: In this paper, a transparent and conducting films of mixed oxides of zinc and zirconium have been prepared by sol-gel method and the optical bandgap was estimated from the reflectance and transmittance spectra.
Journal ArticleDOI
Structural; morphological; optical and magnetic properties of Mn doped ferromagnetic ZnO thin film
TL;DR: The structural, optical and magnetic properties of the Zn1−xMnxO (0, <,x,<,0.05) thin films synthesized by solgel technique have been analyzed in the light of modification of the electronic structure and disorder developed in the samples due to Mn doping as mentioned in this paper.
Journal ArticleDOI
Study of optical properties of some sol-gel derived films of ZnO
TL;DR: In this paper, the optical transmission and reflection data for aluminum doped zinc oxide films have been analyzed and the optical absorption coefficient (α ) and hence the refractive index ( n ), extinction coefficient ( k ) and the band gap ( E g ) have been determined for these films using different methods.
Journal ArticleDOI
Defects induced ferromagnetism in Mn doped ZnO
Sukalyan Chattopadhyay,S.K. Neogi,Anindya Sarkar,M. D. Mukadam,S. M. Yusuf,Aritra Banerjee,Sudipta Bandyopadhyay +6 more
TL;DR: In this article, single phase Mn doped ZnO samples have been synthesized by the solid-state reaction technique and all the samples were found to be ferromagnetic with clear hysteresis loops at room temperature and the maximum value for saturation magnetization (0.11μB/Mn atom) was achieved for 96h milled sample.