Optical properties of bismuth trioxide thin films
By L. Leontie, M. Caraman, M. Delibaş, G. Rusu. 2001
169 citations recorded by the source corpus.
For Bi2O3 thin films, the influence of preparation conditions on the optical absorption, in the spectral range of 280–1260 nm, was investigated. Bi2O3 films (d = 0.07–1.50 μm) were prepared by thermal oxidation, in air, of vacuum evaporated Bi films. Glass and mica substrates were used. Structural investigations (performed by X-ray diffraction and optical polarizing microscopy) showed that films have a polycrystalline and multiphasic structure. The values of energy gap, Eg (direct transitions), calculated from the absorption spectra, ranged between 2.40 and 3.96 eV. The values of Eg for Bi2O3 films are strongly influenced by the heat treatment characteristics, which determine the phase composition of samples.
Subfields: Catalysis, Electrical and Electronic Engineering, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/74f38d88ea7af3399787f1f7a5ed3f1485b40509
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
- Jiefu Yin
- H. Cao
- Xiangwen Liu
Citations in the corpus
- Generation and photocatalytic activities of Bi@Bi2O3 microspheres (2011, background): “These metastable phases are easily transformed to the α-phase at low temperature and the δ-phase at high temperature, and every phase is associated with certain band gap energy [ 10 ].”