Meeting abstract

Optical properties of guanidinium aluminium sulphate hexahydrate

P. M. Nikolić ; Faculty of Electrical Engineering and Institute of Physics, Belgrade University
W. B. Roys ; Department of Physics, Nottingham University, England
D. Todorović ; Institute of Physics, Belgrade University
D. Raković ; Faculty of Electrical Engineering and Institute of Physics, Belgrade University
R. Grbić ; Faculty of Electrical Engineering, Belgrade University

Abstract

Single crystals of guanidinium aluminium sulphate hexahydrate (GASH) were obtained. The crystallographic and optical properties of this material are given. Transmission of monochromatic light was measured for both pure GASH and the compound doped with Cr atoms. Using these data the value of the energy gap for pure GASH was calculated and also the appearance of new energy levels in the forbidden energy zone when GASH was doped with Cr was discussed. Far infrared reflectivity was measured for pure GASH and the experimental results were numerically analysed. The values of some optical parameters were calculated.

Keywords

Hrčak ID:

340716

URI

https://hrcak.srce.hr/340716

Publication date:

15.12.1980.

Visits: 170 *