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- Title
SIZE-DEPENDENT BAND-GAP AND DIELECTRIC CONSTANT OF SI NANOCRYSTALS.
- Authors
LI, M.; LI, J. C.; JIANG, Q.
- Abstract
Based on the consideration on size-dependent temperature Tm(D) where D denotes the diameter of nanoparticles and nanowires or the thickness of thin films, the size-dependent band-gap ΔEg(D) and dielectric constant ε(D) of low dimensional materials are modeled without any adjustable parameter. The model predicts an increase of the band-gap and a decrease of dielectric constant with drop of Si nanocrystals' size. The predicted results correspond to experimental and computer simulation results of Si nanocrystals.
- Subjects
NANOSILICON; NANOCRYSTALS; DIELECTRICS; THIN films; COMPUTER simulation; NANOWIRES
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2010, Vol 24, Issue 15/16, p2297
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979210064824