Research on Interband Optical Transitions in Gd2O3: Er Nanoparticles – Prospective System for Energy Convertors

Authors

  • A. F. Zatsepin Institute of Physics and Technology, Ural Federal University, Yekaterinburg, Russia.
  • Yu A. Kuznetsova Institute of Physics and Technology, Ural Federal University, Yekaterinburg, Russia.
  • M. A. Mashkovtsev Institute of Physics and Technology, Ural Federal University, Yekaterinburg, Russia.
  • V. N. Rychkov Institute of Physics and Technology, Ural Federal University, Yekaterinburg, Russia.

DOI:

https://doi.org/10.9734/bpi/aaer/v8/7385D

Keywords:

Interband optical transitions, Gd2O3 nanoparticles, electron transitions

Abstract

The features of electron transitions in the region of fundamental absorption edge as well as vibrational characteristics are investigated in Gd2O3 nanoparticles doped with Er3+ ions at 0.25-8 mol% concentration. The analysis of initial reflection data is performed for cases of direct and indirect interband transitions. The dependences of corresponding energy gaps on activator concentration are obtained. The effect of strong decrease in the phonon frequency under doping of matrix with a small amount of Er3+ is found. The obtained data open new opportunities for improving the efficiency of energy conversion devices. The obtained data indicate the possibility of thermal losses minimization during the radiation conversion.

Published

2021-05-11

How to Cite

A. F. Zatsepin, Yu A. Kuznetsova, M. A. Mashkovtsev, & V. N. Rychkov. (2021). Research on Interband Optical Transitions in Gd2O3: Er Nanoparticles – Prospective System for Energy Convertors. Advanced Aspects of Engineering Research Vol. 8, 129–136. https://doi.org/10.9734/bpi/aaer/v8/7385D

Issue

Advanced Aspects of Engineering Research Vol. 8

Section

Chapters