Azhniuk Y. Optical manifestations of size-dependent, compositional, and structural transformations in II-VI semiconductor nanocrystals under external factors

Українська версія

Thesis for the degree of Doctor of Science (DSc)

State registration number

0511U000549

Thesis Registration Form

0511U000549.pdf

Applicant for

Specialization

  • 01.04.10 - Фізика напівпровідників і діелектриків

24-06-2011

Specialized Academic Board

Д26.199.02

Essay

Optical studies of size-dependent, compositional, and structural transformations in matrix-embedded II-VI nanocrystals under external effects were performed. Iintense thermal treatment results in the minority chalcogen being pushed out from the nanocrystals into the matrix. Quaternary Cd-Zn-S-Se and Cd-S-Se-Te nanocrystal rows were identified. Conditions of precipitation Se2 or Te2 molecular clusters as an alternative to II-VI nanocrystal formation in borosilicate glass are determined. Radiation-induced changes in absorption are explained by ionization of the II-VI nanocrystals and charge transfer with radiation-induced hole traps in the glass matrix.

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Files

Diss_Azhniuk.doc

aref_Azhniuk.doc

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