期刊
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
卷 64, 期 2, 页码 265-271出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0022-3697(02)00291-3
关键词
nanoprticles; surface-modification; luminescence
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 similar to0.45 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. (C) 2002 Elsevier Science Ltd. All rights reserved.
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