Autor: |
Chengyun, Wang, Liwen, Gong, Guiwen, Zhao |
Zdroj: |
Journal of Materials Science: Materials in Electronics; March 2002, Vol. 13 Issue: 3 p179-182, 4p |
Abstrakt: |
Er2O3thin films had been prepared by a sol-gel dipping process with Er(NO3)3· 6H2O as the precursor and collodion as the viscosity-increasing agent. The annealing temperature of gel films was 600 °C and the thickness of Er2O3thin films increased linearly with the number of dippings at a rate of about 40 nm per dipping. This sol-gel dipping process provided a good reproducibility of the homogeneous Er2O3thin films. The spectral and crystal properties of the thin films were studied in detail and the results indicated that the color of the thin films mainly resulted from an interference effect. Moreover, the optically transparent region of Er2O3thin films was determined with photoacoustic spectroscopy. |
Databáze: |
Supplemental Index |
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