Speaker
Marko Mikuz
(Jozef Stefan Institute (SI))
Description
Electric field in silicon irradiated with neutrons up to 1e17 n_eq/cm^2 was investigated by edge-TCT. Methods for absolute determination of electric field were developed. From the v(E) dependence mobility degradation with fluence was extracted. A simple field structure was observed, consistent with a SCR and "ENB", a region that does not contribute to leakage current and the electric field there is consistent with current transport across highly resistive silicon. The observed mobility change and the values of electric field indicate substantial reduction of trapping from linear extrapolation of low fluence values.
An irradiation campaign at CERN IRRAD covering the fluence range from 3e14 n_eq/cm^2 to 3e16 n_eq/cm^2 shall provide complementary information on electric field and mobility changes after charged hadron irradiation.
Primary authors
Dr
Gregor Kramberger
(Jozef Stefan Institute (SI))
Prof.
Igor Mandic
(Jozef Stefan Institute (SI))
Marko Mikuz
(Jozef Stefan Institute (SI))
Prof.
Marko Zavrtanik
(Jozef Stefan Institute (SI))
Prof.
Vladimir Cindro
(Jozef Stefan Institute (SI))
