Abstract
Silicon nanocrystals with the most probable diameter of 2 nm are surface passivated by glycerol and deposited on porous silicon (PS) substrate with intrinsic red photoluminescence. Tunable full-color emission is observed from this composite film and the quantum efficiency varies from 17% to 28% under different excitation wavelengths. Spectral analysis reveals that the full-color emission arises from combined quantum confinement in the silicon and PS nanocrystals with glycerol passivation. The nanostructured all-silicon film is robust and compatible with microelectronic processing. © 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 17-20 |
Journal | Scripta Materialia |
Volume | 76 |
DOIs | |
Publication status | Published - Apr 2014 |
Research Keywords
- Glycerol passivation
- Quantum confinement effect
- Si nanocrystals
- Tunable photoluminescence