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Effect of Reactor Irradiation on the Conductivity and the Photoconductivity of Hexagonal Selenium Single Crystals
Author(s) -
Tuomi T. O.
Publication year - 1968
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19680280133
Subject(s) - conductivity , photoconductivity , selenium , irradiation , materials science , hexagonal crystal system , radiation , neutron , radiochemistry , analytical chemistry (journal) , electrical resistivity and conductivity , optoelectronics , chemistry , crystallography , optics , nuclear physics , physics , chromatography , quantum mechanics , metallurgy
Radiation damage in selenium is investigated at various temperatures. Fast neutron irradiation is found to decrease the conductivity of a hexagonal selenium single crystal at 310 ° K in an exponential manner. According to the barrier model the decrease of the conductivity is a result of the decrease in the hole concentration in the high conductivity regions. The photoconductivity measurements indicate that the fast neutron irradiation does not markedly change the properties of the barriers. At 80 ° K the crystals are more sensitive to radiation than at 310 ° K, whereas at 20 ° K the effect of radiation on the conductivity is of the same order as at room temperature.