Blue-Green Photoluminescence from Ultrafine Colloidal Si Particles in 2-Propanol
- 1 May 1996
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 35 (5A) , L551
- https://doi.org/10.1143/jjap.35.l551
Abstract
We have prepared Si nanocolloids by trapping Si ultrafine particles (UFPs) prepared by gas evaporation into an organic solvent. The average diameter of the Si UFPs is 4.8 nm. Strong blue-green photoluminescence (PL) from the Si UFPs has been observed at room temperature. The peak energy of the broad PL band is about 2.5 eV. We have investigated the dependence of the PL intensity on the aging of the sample and the average diameter of the Si particles.Keywords
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