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Effect of substrate on the nanostructured Bi2Se3 thin films for solar cell applications
Desai, N. D.,Ghanwat, V. B.,Khot, K. V.,Mali, S. S.,Hong, C. K.,Bhosale, P. N. Springer Science + Business Media 2016 Journal of materials science Materials in electron Vol.27 No.3
<P>In this article, we are reporting the effect of different substrates on the growth of nanostructured bismuth selenide (Bi2Se3) thin films for photoelectrochemical (PEC) application. Three different substrates are used such as glass, indium doped tin oxide (ITO) and fluorine doped tin oxide (FTO) for the deposition of Bi2Se3 thin film using arrested precipitation technique at room temperature (300 K). The optical, structural, morphological, compositional and PEC properties of Bi2Se3 thin films were studied by using various characterization techniques such as UV-Vis-NIR, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and PEC as a function of different substrates. Finally, the PEC performance of deposited thin films shows highest conversion efficiency 0.14 % for Bi2Se3 thin films deposited on FTO coated substrate surface.</P>
Bagade, C. S.,Ghanwat, V. B.,Mali, S. S.,Khot, K. V.,Hong, C. K.,Bhosale, P. N. Springer Science + Business Media 2016 Journal of materials science Materials in electron Vol.27 No.6
<P>In the present work, we have synthesized nanocrystalline (CdZn) Se thin films by a simple and cost effective arrested precipitation technique. Systematic characterization of optostructural, morphological, compositional and photoelectrochemical property has been carried out. The optical band gap was evaluated from optical absorption spectra by using UV-Vis-NIR spectrophotometer. Estimated optical band gap lies in the range of 1.90-2.07 eV. X-ray diffraction pattern reveals that the deposited thin films were nanocrystalline in nature and exhibit cubic crystal structure. The dependency of microstructural parameters such as crystallite size, microstrain and dislocation density has been studied. Scanning electron microscopy images demonstrates that surface morphology can be improved with respect to deposition time. X-ray photoelectron spectroscopy and energy dispersive X-ray spectroscopy confirmed that composition and stoichiometry of (CdZn) Se thin films. A maximum photo conversion efficiency 0.73 % was achieved in the (CdZn) Se cauliflower thin film based solar cell.</P>
Novel synthesis of interconnected nanocubic PbS thin films by facile aqueous chemical route
Khot, K. V.,Mali, S. S.,Pawar, N. B.,Mane, R. M.,Kondalkar, V. V.,Ghanwat, V. B.,Patil, P. S.,Hong, Chang Kook,Kim, Jin Hyeok,Heo, Jaeyeong,Bhosale, P. N. Springer-Verlag 2014 Journal of materials science Materials in electron Vol.25 No.9