Abstract
Nanocrystalline silicon (n-Si) is formed in a silicon dioxide thin-film matrix by ion implantation followed by thermal annealing in forming gas at 1100°C for 1 hour. The ion implantation is performed using multiple implants with different implantation energies and doses to create a quasi-flat concentration of silicon atoms throughout the silicon dioxide film. These samples are then analyzed using spectroscopic ellipsometry to characterize their linear optical properties. Implantations with small doses (5 × 1020 Si atoms/cm3) increase the refractive index by a small amount (Δn∼0.006 at 600nm), while implantations with moderate dose (5 × 1021 Si atoms/cm3) have a larger increase in refractive index and exhibit optical absorption above ∼1.9 eV (650 nm).
Original language | English |
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Pages (from-to) | 259-264 |
Number of pages | 6 |
Journal | Materials Research Society Symposium - Proceedings |
Volume | 737 |
State | Published - 2003 |
Event | Quantum Confined Semiconductor Nanostructures - Boston MA, United States Duration: Dec 2 2002 → Dec 5 2002 |