Study of piezoresistance in GexSi1−x whiskers for sensor application
✍ Scribed by Anatolij Druzhinin; Igor Ostrovskii; Natalia Liakh
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 378 KB
- Volume
- 8
- Category
- Article
- ISSN
- 1369-8001
No coin nor oath required. For personal study only.
✦ Synopsis
The piezoresistance of Ge x Si 1Àx (x ¼ 0:0120:05) solid solution whiskers with impurity concentrations in the vicinity to metal-insulator transition at the temperature range 4.2-300 K was studied. A 'giant' piezoresistance was found at low temperatures (To50 K) in the samples. The absolute magnitude of the gauge factor depends on the doping level and for the whiskers with r 300 K ¼ 0:018 O cm it is around 3.4 Â 10 4 at the temperature 4.2 K. The observed effect was used for design of high sensitive strain sensors.
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