Determining the mutual Interaction factor for Phonon-Exciton in AgBr crystal doped with copper

Authors

  • Nizar Shaaban Damascus University
  • Salahaldin Nouraldin Tartous University

Abstract

The essential absorption edge of AgBr doped with copper is investigated and studied   as a function of  temperature, in the temperature range from 140 K to 490 K , and in the energy range from 2 eV to 3.5 eV. The mutual interaction factor  for phonon-  exciton in the crystal is calculated and compared the same factor of intrinsic AgBr .

 

References

ARTJUSHENKO V.G., Infrared crystalline fibers, Proc. SPIE, Vol.1228, 12-25, (1990).

ARTJUSHENKO V.G., et al., Mechanism of optical losses in polycrystalline fibers, Proc. SPIE, Vol. 1591, 83-89.

GLAUS, S. & CALZAFERRI, G. (2003). "The band structures of the silver halides AgF, AgCl, and AgBr: A comparative study". Photochem. Photobiol. Sci. 2 (4): 398.

CHATEAN H., compt .Rend, 1959, v.248. 1950.

RATHOR, A. ,ARORA, G.a, and AHUJA, B.L. Band-structure calculations and electron momentum densities of AgCl and AgBr . Phys. Stat. Sol.(b) 245,

N.8, 1563-1570 (2008).

MCLEANT, P., The absorption edge spectrum of semiconductors, In: progress in semiconductors ,Heywood and company, val.5, p.87, (1960).

MOSER, F. URBACH, F. , Optical absorption of pure silver holides , phys.Rev.

V. 1202 , N.6. J.15.

KURIK, M.V., URBACH rule, Phys. Stat. Sol. (a) 1971, V.8, N.1, P.9-45.

Published

2021-01-14

How to Cite

1.
Shaaban N, Nouraldin S. Determining the mutual Interaction factor for Phonon-Exciton in AgBr crystal doped with copper. TUJ-BA [Internet]. 2021Jan.14 [cited 2024May8];41(1). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/7916