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States of antimony and tin atoms in lead chalcogenides

Journal Article · · Semiconductors
 [1];  [2]; ; ;
  1. Herzen State Pedagogical University (Russian Federation)
  2. St. Petersburg State Polytechnical University (Russian Federation)
It is shown by Moessbauer spectroscopy of the {sup 119}Sb({sup 119m}Sn) isotope that impurity antimony atoms in PbS, PbSe, and PbTe lattices are distributed between cation and anion sublattices. In n-type samples, the greatest part of antimony is located in the anion sublattice; in hole ones, in the cation sublattice. The tin atoms formed as a result of radioactive decay of {sup 119}Sb (antisite state) are electrically inactive in the anion sub-lattice of PbS and PbSe, while, in the cation sublattice, they form donor U{sup -} centers. Electron exchange between the neutral and doubly ionized tin U{sup -} centers via the allowed band states is observed. The tin atoms formed after radioactive decay of {sup 119}Sb are electrically inactive in the anion and cation sublattices of PbTe.
OSTI ID:
22004840
Journal Information:
Semiconductors, Journal Name: Semiconductors Journal Issue: 4 Vol. 45; ISSN SMICES; ISSN 1063-7826
Country of Publication:
United States
Language:
English