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- W1964098476 abstract "We suggested a new synthesis process, the sol-gel method, to incorporate high concentration of Er 3+ ions into the silicate film on silicon substrate. The coating solutions with uniformly dispersed metal ions were prepared from Er(NO) 3 solution, Si(OC 2 H 5 ) 4 and ethanol. Spin coating was carried out into a treated mono-crystalline silicon (100) substrate, at a speed of about 4000-rpm for 8s. The precursor films were annealed in air at 500 degree(s)C for 2 hours. Er-related approximately 1.54 micrometers photoluminescence was observed at room temperature. The optimal doped concentrations of Er 3+ in SiO 2 film was estimated at about approximately 10 21 /cm 3 . Through characterizations of AFM, FTIR, DTA, TG and EXAFS, we found that: the synthesized film is compact and smooth in microscope; 500 degree(s)C annealing is enough to perform the structure change of gel to glass; and, the Er-O formed complex with coordinate number of 9. Because of the formation of Er-O complex, Er-O-Si can form the next structure in the synthesized film. The configuration could not only increase the optical activity of ions, but also improve the homogeneous of Er 3+ ions in SiO 2 . Thus we demonstrated the sol-gel process is an efficient way to overcome the quench effect of concentration and increase the distribution quality." @default.
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- W1964098476 date "2000-04-13" @default.
- W1964098476 modified "2023-09-27" @default.
- W1964098476 title "Synthesis of Er3+-doped silicon-based light emitting material by sol-gel method" @default.
- W1964098476 doi "https://doi.org/10.1117/12.382871" @default.
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