Primary defect transformations in high-resistivity p-type silicon irradiated with electrons at cryogenic temperatures

Autor: S.B. Lastovski, Michael Moll, L.I. Murin, Leonid Makarenko, F.P. Korshunov
Rok vydání: 2009
Předmět:
Zdroj: Journal of End-to-End-testing. 404:4561-4564
ISSN: 9999-9994
DOI: 10.1016/s9999-9994(09)20505-8
Popis: It has been revealed that self-interstitials formed under low intensity electron irradiation in high resistivity p-type silicon can be retained frozen up to room temperature. Low thermal mobility of the self-interstitials suggests that Frenkel pairs in silicon can be stable at temperatures of about or higher than 100 K. A broad DLTS peak with activation energy of 0.14–0.17 eV can be identified as related to Frenkel pairs. This peak anneals out at temperatures of 120−140 K. Experimental evidences are presented that becoming more mobile under forward current injection the self-interstitials change their charge state to a less positive one.
Databáze: OpenAIRE