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Erschienen in: Optical and Quantum Electronics 11/2019

01.11.2019

Role of oxygen concentrations on structural and optical properties of RF magnetron sputtered ZnO thin films

verfasst von: Francis Otieno, Mildred Airo, Theodore Ganetsos, Rudolph M. Erasmus, David G. Billing, Alexander Quandt, Daniel Wamwangi

Erschienen in: Optical and Quantum Electronics | Ausgabe 11/2019

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Abstract

We report an investigation on the effect of oxygen flow rate on the structural and optical properties of zinc oxide thin films prepared by RF magnetron sputtering. The structural measurements were carried using grazing incidence X-ray diffraction, atomic force microscopy and Raman spectroscopy. The role of oxygen partial pressure on the crystallinity, the surface morphology and vibrational modes has been established. The optical properties of the films were investigated using FR-Basic-VIS/NIR fitted with FR-Monitor software for film thickness, refractive index and color determination. The film thickness is observed to increase when oxygen is introduced at 4 sccm but eventual decrease with increase in the flow rate an indication of initial increase in rate of deposition followed by reduction. Elaborate explanations of these trends are provided.

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Metadaten
Titel
Role of oxygen concentrations on structural and optical properties of RF magnetron sputtered ZnO thin films
verfasst von
Francis Otieno
Mildred Airo
Theodore Ganetsos
Rudolph M. Erasmus
David G. Billing
Alexander Quandt
Daniel Wamwangi
Publikationsdatum
01.11.2019
Verlag
Springer US
Erschienen in
Optical and Quantum Electronics / Ausgabe 11/2019
Print ISSN: 0306-8919
Elektronische ISSN: 1572-817X
DOI
https://doi.org/10.1007/s11082-019-2076-5

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