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Optical properties of nanocrystalline ytterbia DOPEDC zirconia thin films
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UNSPECIFIED (2000) Optical properties of nanocrystalline ytterbia DOPEDC zirconia thin films. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 14 (9). pp. 1017-1024. ISSN 0217-9792.
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Abstract
Thin films of Zr1-xYbxO2-y where x ranges from 0 to 0.3 have been coated onto quartz substrates using an inorganic sol-gel approach at low temperature. The films were fully crystalline and continuous as deposited, with a fluorite structure. On heating over 900 degrees C, films with less than 16% doping had a tetragonal structure whilst those above retained a cubic structure. Crystallite size measurements indicated that the films were nanocrystalline, the size decreasing as a function of increasing dopant concentration. The films are transparent in the region 500 to 1500 nn with very low optical losses. The film refractive index seems relatively independent of the dopant concentration. The optical band gap is dependent on the dopant concentration and is in the range 5.6 to 5.7 eV. There is an increase in refractive index and decrease in optical absorption with increase in annealing temperature from 600 degrees C to 1050 degrees C.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | INTERNATIONAL JOURNAL OF MODERN PHYSICS B | ||||
| Publisher: | WORLD SCIENTIFIC PUBL CO PTE LTD | ||||
| ISSN: | 0217-9792 | ||||
| Official Date: | 10 April 2000 | ||||
| Dates: |
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| Volume: | 14 | ||||
| Number: | 9 | ||||
| Number of Pages: | 8 | ||||
| Page Range: | pp. 1017-1024 | ||||
| Publication Status: | Published |
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