Optical Analytical Studies of Electrostatic-Sprayed Eu-doped Cadmium Selenide Nanofilms at Different Temperatures

Jeroh, M.D.; Ekpunobi, A.J.; Okoli, D.N.

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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
License	Copyright not evaluated
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)