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Structure and optical properties of nanocrystalline erbia doped zirconia thin films
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UNSPECIFIED (2000) Structure and optical properties of nanocrystalline erbia doped zirconia thin films. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 14 (11). pp. 1239-1248. ISSN 0217-9792.
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Abstract
Thin films of zirconia doped with erbia in the concentration range of 5 to 15% have been prepared on quartz substrates by an inorganic and aqueous sol-gel method. The films were crystalline, continuous and single phase as deposited, with a cubic fluorite structure and crystallite sizes of 8-10 nm as shown by X-ray diffraction. The films were annealed to 600 and 1050 degrees C after deposition and found to be transparent in the region between 400 to 1100 nm, the crystalline structure becoming tetragonal at 1050 degrees C with crystallite sizes of around 30-40 nm. The refractive index increased with increase in annealing temperature. There is a peak in the refractive index at a dopant concentration of 10% where it achieves a value of 1.88 at 700 nm. The optical absorption edge shows a similar peak at the same dopant concentration with a value of 5.65 eV.
| 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 May 2000 | ||||
| Dates: |
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| Volume: | 14 | ||||
| Number: | 11 | ||||
| Number of Pages: | 10 | ||||
| Page Range: | pp. 1239-1248 | ||||
| Publication Status: | Published |
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