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Iron nanoparticles embedded in carbon films Structural and optical properties

Iron nanoparticles embedded in carbon films Structural and optical properties

Authors :
S. A. Sebt
Azizollah Shafiekhani
Fatemeh Mashayekhi
Publication Year :
2020
Publisher :
figshare, 2020.

Abstract

In the present work amorphous hydrogenated carbon films with sputtered iron nanoparticles (Fe NPs @ a-C:H) were deposited by co-deposition of RF-sputtering and RF-plasma enhanced chemical vapor deposition methods using acetylene gas and iron target on quartz and silicon substrates. Samples were prepared in different initial pressures and during constant deposition time. The crystalline structure of Fe NPs @ a-C:H was studied using X-ray diffraction and selected area electron diffraction patterns. The X-ray photoelectron spectroscopy analysis presents that increasing the initial pressure decreases the atomic ratio of Fe/C and the sp3-hybridized carbon content in prepared samples. The transmission electron microscope image shows the encapsulated Fe NPs in carbon films. The optical properties and localized surface plasmon resonance (LSPR) of samples were studied using UV-visible spectrophotometry, which is shown that increasing of Fe content decreases the intensity of LSPR peak and increases the optical band gap

Details

Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....c8c5149e2b771a06e5c5abd8d37b9db4
Full Text :
https://doi.org/10.6084/m9.figshare.12783878