Abstract
The polarized reflection spectra of arsenic sulfide crystal have been measured with high accuracy. The identical character of the triplet structures of the reflection spectra of As2S3 and As2Se3 has been established. On the basis of the well-known theoretical calculations of the bands of As2Se3, it is suggested that the three uppermost valence bands of both compounds are caused by the p states of arsenic, rather than sulfur, and are split into ∼0.1 and 0.2 eV. Underneath (about 0.4 eV) there are bands attributable to spin-orbital splitting of the p states of arsenic.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
V. V. Sobolev, Bands and Excitons of the A2B6 Group Compounds[in Russian], Kishinev (1980).
V. V. Sobolev and V. Val. Sobolev, Optical Fundamental Spectra of the A3B5 Group Compounds[in Russian], Kishinev (1979).
M. P. Lisitsa, A. M. Eremko, R. T. Tarasov, M. Ya. Valakh, and L. I. Berezhinskii, Fiz. Tverd. Tela, 14, 3219–3224 (1972).
V. L. Evans and P. A. Young, Proc. Roy. Soc. A,297, 230–243 (1967).
V. I. Donetskikh and V. V. Sobolev, Device for Measuring the Absolute Coefficients of Reflection, USSR Inventor’s Sertificate No. 813204 (1979).
V. V. Sobolev and V. Val. Sobolev, Fiz. Tverd. Tela, 36, 2560–2564 (1994).
V. V. Sobolev and V. Val. Sobolev, Zh. Prikl. Spektrosk., 61, 128–131 (1994).
H. L. Althaus, G. Weiser, and S. Nagel, Phys. Status Solidi (b), 87, 117–128 (1978).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sobolev, V.V. Exciton Reflection Spectra and the Structure of the Valence Band of Arsenic Chalcogenides. Journal of Applied Spectroscopy 69, 946–948 (2002). https://doi.org/10.1023/A:1022439226656
Issue Date:
DOI: https://doi.org/10.1023/A:1022439226656