Optical characterization of antimony-based bismuth-doped thin films with different annealing temperatures |
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| Authors: | Xinmiao Lu Yiqun Wu Yang Wang Jinsong Wei |
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| Institution: | Xinmiao Lu1,Yiqun Wu1,2,Yang Wang1,and Jinsong Wei1 1Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,China 2Key Lab of Functional Inorganic Material Chemistry,Ministry of Education,Heilongjiang University,Harbin 150080,China |
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| Abstract: | Antimony-based bismuth-doped thin film,a new kind of super-resolution mask layer,is prepared by magnetron sputtering.The structures and optical constants of the thin films before and after annealing are examined in detail.The as-deposited film is mainly in an amorphous state.After annealing at 170-370℃,it is converted to the rhombohedral-type of structure.The extent of crystallization increased with the annealing temperature.When the thin film is annealed,its refractive index decreased in the most visible region,whereas the extinction coefficient and reflectivity are markedly increased.The results indicate that the optical parameters of the film strongly depend on its microstructure and the bonding of the atoms. |
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