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Journal articles
Preparation and study of CuBi2O4 thin films by RF magnetron sputtering
Abstract : Copper bismuth oxide (CuBi2O4 or Bi2CuO4) thin films have been elaborated for the first time by radio-frequency
magnetron sputtering using a homemade CuBi2O4 ceramic target. X-ray diffraction characterizations revealed an
amourphous phase for as-deposited films. After air annealing at 450 °C for 12 h, a pure polycristalline CuBi2O4
phase can been obtained. Raman spectroscopy confirmed the film phase purity. The influence of the thickness on
the structural properties of the films has been studied and we observed that all films treated above 450 °C are
crystallized. The thinner films show preferred orientation while there are less crystal defects for the thickest films
(∼700 nm). Atomic force microscopy shows a homogeneous polycristalline microstructure at the surface of the
film. Optical measurements performed by UV–vis-IR spectrophotometry indicate that these films have one of
their optical band gaps in the visible region (Eg∼1.5 eV) which makes them suitable as thin films solar absorption
materials.
Cited literature [25 references]
https://hal.archives-ouvertes.fr/hal-02976031
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Friday, October 23, 2020 - 11:04:55 AM
Last modification on : Tuesday, October 27, 2020 - 3:24:09 AM
Long-term archiving on: : Sunday, January 24, 2021 - 6:26:00 PM
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Friday, October 23, 2020 - 11:04:55 AM
Last modification on : Tuesday, October 27, 2020 - 3:24:09 AM
Long-term archiving on: : Sunday, January 24, 2021 - 6:26:00 PM
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