Optical Properties of Polyethylene Filled with Bi2Te3 Nanocrystallites
- Authors: Gamzayeva A.Y.1, Alizade E.G.2, Mamedov N.T.2, Abdullayev N.A.2, Amiraslanov I.R.2, Aliyeva Y.N.2, Akhmedova K.N.2, Azhdarov G.H.2, Kahramanov K.S.2, Nemov S.A.3
-
Affiliations:
- Ganja State University
- Institute of Physics, Azerbaijan National University of Sciences
- Peter the Great St. Petersburg Polytechnic University
- Issue: Vol 53, No 2 (2019)
- Pages: 224-228
- Section: Microcrystalline, Nanocrystalline, Porous, and Composite Semiconductors
- URL: https://journals.rcsi.science/1063-7826/article/view/205735
- DOI: https://doi.org/10.1134/S106378261902009X
- ID: 205735
Cite item
Abstract
Composite mixtures with various component concentrations are fabricated by the thermal pressing of low-density polyethylene and Bi2Te3 in the powder-like state with a nanocrystal size of ~50 nm. These samples preliminarily characterized by X-ray diffractometry and Raman spectroscopy are investigated by spectroscopic ellipsometry in a photon energy range of 1–6 eV. The dielectric functions for composites with a nominal Bi2Te3 weight concentration of 5, 10, 30, 40, 50, 60, and 70% are calculated based on the measured optical constants of polyethylene and the Bi2Te3 crystal in the approximation of the Bruggeman effective medium. The analysis of depolarization features of reflected light makes it possible to establish the actual inhomogeneity of the composite samples under study caused by the clusterization of nanocrystallites with an increase in the Bi2Te3 weight concentration in polyethylene and propose the most reliable optical model of the formed composites.
About the authors
A. Yu. Gamzayeva
Ganja State University
Email: abnadir@mail.ru
Azerbaijan, Ganja, Az-2003
E. G. Alizade
Institute of Physics, Azerbaijan National University of Sciences
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
N. T. Mamedov
Institute of Physics, Azerbaijan National University of Sciences
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
N. A. Abdullayev
Institute of Physics, Azerbaijan National University of Sciences
Author for correspondence.
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
I. R. Amiraslanov
Institute of Physics, Azerbaijan National University of Sciences
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
Y. N. Aliyeva
Institute of Physics, Azerbaijan National University of Sciences
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
Kh. N. Akhmedova
Institute of Physics, Azerbaijan National University of Sciences
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
G. H. Azhdarov
Institute of Physics, Azerbaijan National University of Sciences
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
K. Sh. Kahramanov
Institute of Physics, Azerbaijan National University of Sciences
Email: abnadir@mail.ru
Azerbaijan, Baku, Az-1143
S. A. Nemov
Peter the Great St. Petersburg Polytechnic University
Email: abnadir@mail.ru
Russian Federation, St. Petersburg, 195251