PDMR and ODMR crystalline p+-i-n+silicon diodes

Abstract
The authors illustrate the importance of photovoltaic detection of magnetic resonance (PDMR) in the case of crystalline p+-i-n+ silicon diodes. For gamma -irradiated diodes new triplet spectral have been observed in the PDMR and these results have been compared with ODMR measurements on the same devices. The detection of magnetic resonance is discussed in terms of a spin dependent triplet recombination process which determines the absorption from the two electron ground states of the defects.