Affordable Access

Publisher Website

Optical properties of Ga2Se3and Ga2Se3:Co2+single crystals

Authors
Journal
Journal of Physics and Chemistry of Solids
0022-3697
Publisher
Elsevier
Publication Date
Volume
62
Issue
6
Identifiers
DOI: 10.1016/s0022-3697(00)00293-6
Disciplines
  • Chemistry

Abstract

Abstract Ga 2Se 3 and Ga 2Se 3:Co 2+ single crystals were produced via the chemical transport reaction method using Ga, Se, and Co as starting materials and (ZnCl 2+I 2) as a transport agent. The single crystals then crystallized into cubic structures with a lattice constant of a=5.442 Å for Ga 2Se 3 and a=5.672 Å for Ga 2Se 3:Co 2+. The optical energy gap of the single crystals was found to be 2.070 eV for Ga 2Se 3 and 1.931 eV for Ga 2Se 3:Co 2+ at 298 K. The temperature dependence of the optical energy gap was fit well with the Varshni equation. Impurity optical absorption appeared in Ga 2Se 3:Co 2+. It was described, by the framework of the crystal field theory, as appearing due to electron transition between the energy levels of the Co 2+ ion sited in T d symmetry.

There are no comments yet on this publication. Be the first to share your thoughts.

Statistics

Seen <100 times
0 Comments

More articles like this

Optical properties of Ga2Se3:Co2+single crystals

on Solid State Communications Jan 01, 1989

Optical properties of Co0.2Ga2S3.2single crystals

on Solid State Communications Jan 01, 1986

Optical properties of undoped, Co2+- and Er3+-dope...

on Journal of Physics and Chemist... Jan 01, 1998

Optical properties of β-Ga2O3:Cr3+single crystals...

on Journal of Luminescence Jan 01, 1987
More articles like this..