THE DETERMINATION OF OPTICAL BAND AND OPTICAL CONSTANTS OF MnO2THIN FILMS PREPARED BY SPRAY PYROLYSIS
Salah K. Hazaa
Abstract
Polycrystal MnO2thin films have been deposited using spray pyrolysis deposition technique under a varied thickness. By analyzing the X-ray diffraction, the structure of deposited films was found to be polycrystalline. Different optical properties of these films have been investigated by observing the optical absorption and transmission spectra. Various optical constants such as optical energy gap, the width of band tails of localized states into the gap, and steepness parameter, were calculated and the variation of various optical parameters such as refractive index, extinction coefficient and dielectric constant, with phonon energy are estimated.
Keywords
MnO2, thin films, spray pyrolysis, optical properties
DOI:
http://dx.doi.org/10.12928/bfi-jifpa.v5i1.243
Refbacks
There are currently no refbacks.
Copyright (c) 2018 Universitas Ahmad Dahlan
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License .
Berkala Fisika Indonesia : Jurnal Ilmiah Fisika, Pembelajaran dan Aplikasinya
Kampus 2 Universitas Ahmad Dahlan Jalan Pramuka No. 42, Pandeyan, Umbulharjo, Yogyakarta - 55161 Telp. (0274) 563515, ext. 4902; Fax. (0274) 564604
Email: bfi@mpfis.uad.ac.id
p-ISSN: 2085-0409 | e-ISSN: 2550-0465
<div class="statcounter"><a title="Web Analytics" href="https://statcounter.com/" target="_blank"><img class="statcounter" src="https://c.statcounter.com/12556442/0/86f5989a/0/" alt="Web Analytics"></a></div>
<div class="statcounter"><a title="Web Analytics" href="https://statcounter.com/" target="_blank"><img class="statcounter" src="https://c.statcounter.com/12556442/0/86f5989a/0/" alt="Web Analytics"></a></div>
View My Stats