Annotation
Photoconductivity spectra of ultrapure silicon at 80 К exhibit transitions in which longitudinal acoustic phonons and excitons take part. It is shown that effective trapping centers with a concentration of about $5\times10^{11}$ cm$^{-3}$ change the effective lifetime of charge carriers at 80 К by 3 to 4 orders of magnitude.
© 2016 Publisher M.V.Lomonosov Moscow State University
Authors
V.A. Morozova, O.G. Koshelev, V.V. Ostroborodova
Department of Semiconductor Physics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Department of Semiconductor Physics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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