Optical properties of highly oriented nanostructured CuI (111) thin films
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Authors
Luhanga, P.V.C.
Tiedt, L.
Muiva, C.
Coetzee, S.H.
Maabong, K.
Monowe, P.
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INOE Publishing House
Abstract
Transparent nanostructured copper(I) iodide (CuI) thin films of varying thicknesses were deposited by thermal evaporation
of pre-melt quenched CuI powders and their structural and optical properties are reported. X-ray diffraction characterization
identifies γ-CuI and suggests that the films are monocrystalline in nature showing high crystallographic orientation along CuI
(111). SEM studies reveal spherical granules growing in size with increasing film thickness. Thinner films were
characterised by high dislocation densities. Optical studies revealed a red shift in the absorption edge and decreased
optical band gap energies with film thickness
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Citation
Luhanga, P.V.C. et al. 2016. Optical properties of highly oriented nanostructured CuI (111) thin films. Journal of optoelectronics and advanced materials, 18(9-10):837-841. [https://joam.inoe.ro/index.php]