Abstract

The short-range order in thin amorphous Bi2S3 films grown under ordinary conditions and in an applied electric field of 3000 V/cm has been studied. The interatomic distances obtained are r1 = 0.23 nm, r2 = 0.345 nm, and r3 = 0.45 nm, and the corresponding coordination numbers are n1 = 4, n2 = 6, and n3 = 5.88. The coordination numbers and the ratios r3/r1 = 1.96 and r2/r1 = 1.5 indicate that the atoms in amorphous Bi2S3 are in tetrahedral and octahedral coordination. In the films grown in an electric field, the near neighbor distances are slightly shorter.

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