Nithya, N (2013) Structural, Photoluminescence and Photoconductivity Properties of ZnO:Mn2+ Thin Films by Chemical Bath Deposition Method. International Journal of Engineering Research & Technology, 2 (12). pp. 1649-1655. ISSN 2278-0181

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Abstract

ZnO:Mn2+ thin films were deposited on glass substrate
using chemical bath by alkalinity pH solution synthesis route. Mn2+ is varied between 0 and 10 mole% in steps of 2.5. The pure and Mn2+ doped ZnO nanocrystalline film have been compared structurally, morphologically and optically using, respectively, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV–Vis. absorption studies photoluminescence (PL) and
photoconductivity studies. The synthesized nanocrystalline films were composed of quantum dots with wurtzite structure. The UV–Vis absorption spectra revealed that pure and doped ZnO nanocrystalline film exhibit the blue shift in the absorption spectra with that of the bulk ZnO. The photoluminescence spectra showed enhanced luminescence intensity and the entry of Mn2+ into host lattice. Time resolved rise and decay photocurrent spectra are found to exhibit anomalous photoconductivity for pure and doped ZnO thin film wherein the photocurrent decreases even during steady illumination.

Item Type: Article
Uncontrolled Keywords: Mn doped ZnO thin film, chemical bath deposition, TEM, UV-Vis., photoluminescence, photoconductivity
Divisions: PSG College of Arts and Science > Department of Physics
Depositing User: Mr Team Mosys
Date Deposited: 23 Jun 2022 07:55
Last Modified: 23 Jun 2022 07:55
URI: http://ir.psgcas.ac.in/id/eprint/1268

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