- Access by Xinjiang University
Optical Properties and Band Structure of Trigonal Selenium
Phys. Rev. 158, 623 – Published 15 June, 1967
DOI: https://doi.org/10.1103/PhysRev.158.623
Abstract
The reflectivity spectra of single crystals of trigonal selenium have been measured at 300 and 20°K between 1.0 and 5.9 eV for light polarized in directions parallel and perpendicular to the axis. The Kramers-Kronig relation has been applied to obtain the wavelength dependence of the optical constants. At 20°K, the imaginary part of the dielectric constant for perpendicular polarization shows one sharp peak at 1.95 eV which has been interpreted as being due to exciton absorption. Another sharp peak in the parallel polarization spectrum at 3.09 eV has also been attributed to an exciton absorption. All other observed peaks have been interpreted in terms of transitions at symmetry points in space. Based on the double-group selection rule and the observed transition energies, a band structure for trigonal selenium is proposed and is compared with published theoretical calculations.
References (28)
- F. C. Jahoda, Phys. Rev. 107, 1261 (1957)
- H. R. Philipp and E. A. Taft, Phys. Rev. 113, 1002 (1959) ibid.120, 37 (1960) ibid.127, 159 (1962)
- H. R. Philipp and H. Ehrenreich, Phys. Rev. 129, 1550 (1963) ibid.131, 2016 (1963)
- J. R. Reitz, Phys. Rev. 105, 1233 (1956)
- D. J. Olechna and R. S. Knox, Phys. Rev. 140, A986 (1965)
- J. Stuke and H. Keller, Phys. Status Solidi 7, 189 (1964)
- R. Sandrock, dissertation, Marburg University, Lahn, Germany, 1965 (unpublished) R. Sandrock and J. Treusch, Solid State Commun. 3, 361 (1965) Phys. Status Solidi 16, 487 (1966)
- W. Kohn and N. Rostoker, Phys. Rev. 94, 1111 (1954)
- V. Prosser, Czech. J. Phys. B10, 306 (1960) Proceedings of the International Conference on Semiconductor Physics, 1960 (Academic Press Inc., New York, 1961), p. 993
- H. Gobrecht and A. Tausend, Z. Physik 161, 205 (1961)
- S. Tutihasi and I. Chen, Solid State Commun. (to be published)
- R. C. Keezer and J. W. Moody, Appl. Phys. Letters 8, 233 (1966) R. C. Keezer, C. Wood, and J. W. Moody, in Proceedings of an International Conference on Crystal Growth, Boston, 1966, p. 119 (to be published in J. Phys. Chem. Solids Suppl.)
- A. Smith, J. Opt. Soc. Am. 50, 862 (1960)
- I. Chen and T. P. Das, J. Chem. Phys. 45, 3526 (1966) ibid.45, 3536 (1966)
- P. Cherin and P. Unger, in Proceedings of the 7th International Congress and Symposium of the International Union of Crystallographers, Moscow, 1966 (unpublished) Inorg. Chem. (to be published)
- C. J. Ballhausen and H. B. Gray, Molecular Orbital Theory (W. A. Benjamin, Inc., New York, 1964), p. 122
- L. C. Cusachs, J. Chem. Phys. 43, S157 (1965)
- C. E. Moore, Atomic Energy Levels, Natl. Bur. Std. (U. S.) Circ. No. 467 (U. S. Government Publishing and Printing Office, Washington, D. C., 1949)
- M. Hulin, Ann. Phys. (Paris) 8, 647 (1963)
- D. L. Dexter, Phys. Rev. 101, 48 (1956)
- D. G. Thomas, J. Phys. Chem. Solids 15, 86 (1960)
- J. J. Hopfield and D. G. Thomas, Phys. Rev. 122, 35 (1961)
- [11]
- G. Lucovsky and R. C. Keezer, Bull. Am. Phys. Soc. 11, 812 (1966) A. Mooradian and G. B. Wright, ibid. 11, 812 (1966)
- R. S. Knox, Theory of Excitons (Academic Press Inc., New York, 1963), Sec. 4b
- J. Stuke and G. Weiser, Phys. Status Solidi 17, 343 (1966)
- H. Gobrecht and A. Tausend, in Proceedings of the International Conference on the Physics of Semiconductors, Paris, 1964 (Academic Press Inc., New York, 1965), p. 1189
- R. S. Knox, Xerox Research and Engineering Division Laboratories Report No. RL63-59 (unpublished) [14]