Zhyshkovych A. Radiative Relaxation of Electronic Excitations in Fluorides Nanodimensional Crystals

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0415U006375

Thesis Registration Form

0415U006375.pdf

Applicant for

Zhyshkovych Andriy Volodymyrovych

Specialization

01.04.10 - Фізика напівпровідників і діелектриків

Date of defense

04-11-2015

Specialized Academic Board

Д 35.051.09

Ivan Franko National University of Lviv

Essay

The thesis is devoted to the study of the radiative relaxation mechanisms of high-energy electronic excitations and the excitation energy transfer to the luminescence centers of wide band gap dielectric fluoride nanocrystals MeF2 (Me = Ca, Sr, Ba) and MeF2: Ln (Ln = Eu2 +, Eu3 +, Ce3 +) depending on their size. The ratio between photoelectron thermalization length and the nanoparticle size is established to be determinative for intrinsic and impurity recombination luminescence. Intensity of the radiative core-valence transitions is revealed to depend slightly on the nanoparticle size because of a small value of core hole diffusion length.

Thesis supervisor

Voloshinovskii Anatolii Stepanovych

Official opponents

Пелещак Роман Михайлович
Шпотюк Олег Йосипович

Files

aref.doc

dis.doc

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