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Title Optical Analytical Studies of Electrostatic-Sprayed Eu-doped Cadmium Selenide Nanofilms at Different Temperatures
Authors Jeroh, M.D.
Ekpunobi, A.J.
Okoli, D.N.
ORCID
Keywords Photon Energy
Optical Constants
Band gap
Substrate temperature
Blue-shift
Electromagnetic spectrum
Type Article
Date of Issue 2018
URI http://essuir.sumdu.edu.ua/handle/123456789/69284
Publisher Sumy State University
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Citation Jeroh, M.D. Optical Analytical Studies of Electrostatic-Sprayed Eu-doped Cadmium Selenide Nanofilms at Different Temperatures [Текст] / M.D. Jeroh, A.J. Ekpunobi, D.N. Okoli // Журнал нано- та електронної фізики. - 2018. - Т.10, № 3. - 03006. - DOI: 10.21272/jnep.10(3).03006.
Abstract Electrostatic spray pyrolysis was utilized to grow nanofilms of Eu-doped cadmium selenide at different temperatures. Optical analysis performed on the grown films reveals extremely poor reflection and absorption of light throughout the visible spectrum. However, high transmission was determined at higher wavelengths (visible spectrum) for the films. Other optical constants such as absorption coefficient, optical conductivity, refractive index, extinction coefficient, dielectric constants (imaginary and real), sum of both dielectric constants (imaginary and real) are analyzed. Optical band gap studies disclosed the band gaps of CdSe:Eu films were blue-shifted from CdSe bulk value (1.75 eV); from 2.4 eV to 2.84 eV.
Appears in Collections: Журнал нано- та електронної фізики (Journal of nano- and electronic physics)

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