Abstract
We have fabricated Si nanocrystals utilizing nanometer-sized Pt islands acting as etching-masks on SiOx/amorphous-Si/SiOx/p-Si (100) thin films. In the measurement of transmission electron microscopy the Si nanocrystals embedded in SiO2 were observed, and in the measurement of cathodoluminescence spectroscopy at 77 K Si nanocrystal-related peaks were observed at 462 and 647 nm. For the Al/SiO 2/nanocrystalline-Si/SiO2/p-Si capacitor structure, a hysteretic behavior with the flatband voltage shift of 0.592 V was observed in the measurement of capacitance-voltage characteristic at 300 K. These results indicate that Si nanocrystals can be formed by using a nanosized Pt island etching-mask, and that Si nanocrystals embedded in SiO2 layer act as Si quantum dots which hold promise potential applications.
Original language | English |
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Pages (from-to) | 379-383 |
Number of pages | 5 |
Journal | Thin Solid Films |
Volume | 451-452 |
DOIs | |
State | Published - 22 Mar 2004 |
Event | Proceedings of Symposium D on Thin Film and Nano-Structured - Strasbourg, France Duration: 10 Jun 2003 → 13 Jun 2003 |
Keywords
- Cathodoluminescence
- Flatband voltage shift
- Platinum-nanomask
- Silicon nanocrystals