Abstract
Er-doped hydrogenated amorphous silicon (a-Si:H) films were prepared by a novel deposition technique combining catalytic chemical vapor deposition (CVD) and pulsed laser-ablation. Er content was controlled, ranging from 8 x 1019 to 7 x 1020 cm-3, by increasing the gas pressure during deposition from 6.7 to 106 Pa. Photoluminescence (PL) properties were measured at various temperatures. PL originating from Er 4f-intra transition was observed even at room temperature. Activation energy for the quenching the PL intensity is smaller than that for Er-doped single crystal Si. Based on these results we suggest that Er-doped a-Si:H films prepared by our method are promising materials for optical-communication devices.
| Original language | English |
|---|---|
| Pages (from-to) | 136-140 |
| Number of pages | 5 |
| Journal | Journal of Non-Crystalline Solids |
| Volume | 266-269 A |
| DOIs | |
| Publication status | Published - 01-05-2000 |
| Externally published | Yes |
| Event | 18th International Conference on Amorphous and Microcrystalline Semiconductors - Sicence and Technology (ICAMS 18) - Snowbird, UT, United States Duration: 23-08-1999 → 27-08-1999 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Materials Chemistry