Analysis of the Temperature Dependence of the Exciton Luminescence Spectra of Cadmium Selenide Quantum Dots Grown in a Liquid Crystal Matrix1

K. A. Magaryana, b, *, K. R. Karimullina, b, I. A. Vasil’evaa, and A. V. Naumova, b
Translated by V. Rogovoi

a Moscow State Pedagogical University, Moscow, 119435 Russia

b Institute for Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow, 108840 Russia

Correspondence to: *e-mail:

1XIII International Conference on Hole Burning, Single Molecule, and Related Spectroscopies: Science and Applications (HBSM–2018), August 6–12, 2018, Suzdal, Moscow, Russia.

Received 24 September, 2018

Abstract—The temperature dependences of the positions of maxima of exciton bands in the luminescence spectra of liquid crystal nanocomposites with CdSe quantum dots with sizes of 1.8 and 2.3 nm at T = 77–300 K have been analyzed. The analysis under the theoretical model taking into account the electron–phonon interaction inside quantum dots has made it possible to calculate the values of the Huang–Rhys factor and average phonon energy in nanocrystals under study.

DOI: 10.1134/S0030400X19010107