Abstract
Transient photocurrent measurements are reported in an electroluminescent porous silicon diode. Electron drift mobilities are obtained from the data as a function of temperature. Electron transport is dispersive, with a typical dispersion parameter α ≈ 0.5. The range of mobilities is 10-5 - 10-4 cm2/Vs between 225 K and 400 K. This temperature-dependence is much less than expected for multiple-trapping models for dispersion, and suggests that a fractal structure causes the dispersion and the small mobilities.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 613-618 |
| Number of pages | 6 |
| Journal | Materials Research Society Symposium - Proceedings |
| Volume | 452 |
| State | Published - 1997 |
| Externally published | Yes |
| Event | Proceedings of the 1996 MRS Fall Meeting - Boston, MA, USA Duration: Dec 2 1996 → Dec 6 1996 |
All Science Journal Classification (ASJC) codes
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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