UV-Induced Anisotropy in CdBr2-CdBr2: Cu Nanostructures

• Autorzy: El-Naggar A. M. , Albassam A. A. , Oźga K. , Szota M. , Kityk I. V.

Identyfikatory

DOI

10.1515/amm-2015-0344

Warianty tytułu

PL

Anizotropia wywołana promieniowaniem UV w nanostrukturach CdBr₂-CdBr₂: Cu

• Języki publikacji: EN

Abstrakty

EN

We have found an occurrence of anisotropy in the nanostructure CdBr₂-CdBr₂: Cu nanocrystalline films. The film thickness was varied from 4 nm up to 80 nm. The films were prepared by successive deposition of the novel layers onto the basic nanocrystals. The detection of anisotropy was performed by occurrence of anisotropy in the polarized light at 633 nm He-Ne laser wavelength. The occurrence of anisotropy was substantially dependent on the film thickness and the photoinduced power density. Possible mechanisms of the observed phenomena are discussed.

PL

Wykryto pojawienie się anizotropii w nanostrukturalnych warstwach nanokrystalicznych CdBr₂-CdBr₂: Cu. Grubość warstwy zmieniano w zakresie od 4 nm do 80 nm. Nanostrukturalne warstwy otrzymano poprzez kolejne osadzanie na nowych warstwach na podstawie nanokrystalitów. Detekcję anizotropii wykonano w spolaryzowanym świetle lasera gazowego He-Ne o długości fali 633 nm. Anizotropia optyczna występująca w warstwach w znacznym stopniu zależy od grubości warstwy i gęstości mocy indukowanej światłem. Omówiono możliwe mechanizmy obserwowanego zjawiska.

Słowa kluczowe

EN

CdBr2-CdBr2: Cu nanocrystalline film; UV-induced anisotropy; optical properties; birefringence; layered crystals

PL

warstwy nanokystaliczne CdBr2-CdBr2: Cu; anizotropia wywołana UV; właściwości optyczne; dwoistość; kryształy warstwowe

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 3A
• Strony: 2029--2032
• Opis fizyczny: Bibliogr. 14 poz., rys., tab., wykr., wzory

Twórcy

autor

El-Naggar A. M.

• Research Chair of Exploitation of Renewable Energy Applications in Saudi Arabia, Physics & Astronomy Dept., College of Science, King Saud University, P.0.Box 2455, Riyadh 11451, Saudi Arabia
• Physics Department, Faculty of Science, Ain Shams University, Abassia, Cairo 11566, Egypt

autor

Albassam A. A.

• Research Chair of Exploitation of Renewable Energy Applications in Saudi Arabia, Physics & Astronomy Dept., College of Science, King Saud University, P.0.Box 2455, Riyadh 11451, Saudi Arabia

autor

Oźga K.

• Czestochowa University of Technology, Institute of Electronic and Control System, 17 Armii Krajowej Av., 42-200 Czestochowa, Poland

autor

Szota M.

• Czestochowa University of Technology, Institute of Material Science Engineering, 19 Armii Krajowej Av., 42-200 Czestochowa, Poland

autor

Kityk I. V.

• Czestochowa University of Technology, Institute of Electronic and Control System, 17 Armii Krajowej Av., 42-200 Czestochowa, Poland

Bibliografia

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• [12] J. K. Plusinski, G. Lakshminarayana, Operation by acentricity in the CdBr2 nanolayers, Physica E 56, 348-350 (2014).
• [13] Y. M. Alecksandrov, Y. O. Dovgii, I. V. Kityk, V. N. Kolobanov, V. N. Makhov, V.V. Mikhailin, Energy-band structure of layered CdBr2 crystals, Fizika Tvardego Tela 27 (5), 1565-1567 (1985).
• [14] Ya. O. Dovgii, I. V. Kityk, I. G. Man’kovskaya, L. N. Evstigneeva, Polarized light spectrum of Tl3SbS3 single crystals, Phys. Semicond. 24, 1004-1005 (1990).

Uwagi

EN

The project was financially supported by King Saudi University, Vice Deanship of research chairs, research chair of Exploitation of Renewable Energy Applications in Saudi Arabia