Kevshin A. Influence of impurities (HgX, Ga2X3, Er2X3, X=S, Se) on the structure and optical properties of chalcogenide glasses based on GeX2.

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0411U004025

Thesis Registration Form

0411U004025.pdf

Applicant for

Specialization

  • 01.04.10 - Фізика напівпровідників і діелектриків

16-06-2011

Specialized Academic Board

Д 32.051.01

Essay

This dissertation is devoted to the study of the structure and optical properties of some chalcogenide glasses based on GeX2 (X=S, Se). It was shown that the main structural elements of the investigated glassy alloys are GeX4/2 (X=S, Se) tetrahedrons, and Band edge of intrinsic absorption is well described by Urbach's rule. It was determined that introduction of erbium ions in the glass matrix leads to occurrence of photoluminescence associated with electron transitions in the partially filled internal 4f-shell of the Er3+ ion.

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