Electrically active centers introduced in p‐type Si by rapid thermal processing
Autor: | Edouard Monakhov, Jeyanthinath Mayandi, Chi Kwong Tang, Bengt Gunnar Svensson, Arve Holt, Eiliv Lund |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | physica status solidi c. 8:725-728 |
ISSN: | 1610-1642 1862-6351 |
DOI: | 10.1002/pssc.201000263 |
Popis: | Electrically active defects introduced in boron-doped silicon by rapid thermal annealing were studied using deep level transient spectroscopy. Thermal treatment at 1000 °C for 2 minutes induced two hole traps with energy levels at 0.3 eV and 0.4 eV above the valence band edge and concentration between 5 × 1012 and 5 × 1013cm–3. Both defects exhibit Poole-Frenkel effect and show thermal stability up to 650 °C. Depth profiling reveals that these defects extend more than 3 m into the bulk and decrease in concentration towards the surface. The origin and formation kinetics of these centers will be discussed and compared with theoretical predictions in the literature. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
Databáze: | OpenAIRE |
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