Optical properties of surface-modified Bi2O3 nanoparticles |
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| Authors: | Wenting Dong Congshan Zhu |
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| Institution: | Photon Craft Project Lab, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800, People's Republic of China |
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| Abstract: | Stearic acid coated Bi2O3 nanoparticles in the size range of 5-13 nm were synthesized by the microemulsion method. HRTEM showed that the morphology of Bi2O3 nanoparticles was ellipsoidal. The absorption edge of Bi2O3 nanoparticles showed a blue shift of ∼0.45 eV, comparing with that of the bulk Bi2O3. At room temperature, Bi2O3 nanoparticles also showed a strong luminescence at 397 and 420 nm, depending on the excitation wavelength. |
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| Keywords: | Nanoprticles Surface-modification D Luminescence |
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