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Current issue   Ukr. J. Phys. 2016, Vol. 61, N 7, p.606-612
http://dx.doi.org/10.15407/ujpe61.07.0606    Paper

Krymus A.S., Myronchuk G.L., Parasyuk O.V.

Lesya Ukrainka Eastern European National University
(13, Volya Ave., Lutsk 43025, Ukraine; e-mail: post@univer.lutsk.ua)

Influence of Cu-, Sn-, and In-Doping on Optical Properties of AgGaGe3 Se8 Single Crystals

Section: Solid Matter
Original Author's Text: Ukrainian

Abstract: The optical properties of AgGaGe3Se8 single crystals doped with Cu, In, and Sn atoms have been studied. A physical model is proposed for those compounds, which are wide-gap semiconductors (Eg ≈ 2.09–2.15 eV at T = 300 K) with the p-type conductivity, and whose optical parameters depend on the dopant nature and concentration. On the basis of this model and making allowance for specific features of disordered systems, the obtained experimental results are explained.

Key words: chalcogenide crystals, optical properties, Urbach energy.

References:

  1. V.V Badikov, A.G. Tyulyupa, G.S. Shevyrdyaeva et al., Neorg. Mater. 27, 248 (1991).
  2. I.D. Olekseyuk, G.Ye. Davydyuk, N.S. Bogdanyuk et al., Neorg. Mater. 29, 617 (1993).
  3. I.D. Olekseyuk, A.V. Gulyak, L.V. Sysa et al., J. Alloys Comp. 241, 187 (1996).  CrossRef
  4. I.V. Kityk, G.L. Myronchuk, G.Ye. Davydyuk et al., Nauk. Visnyk Volyn. Nats. Univ. Ser. Fiz. Nauky 3, 8 (2012).
  5. I.V. Kityk, A.O. Fedorchuk, P. Rakus et al., Mater. Lett. 107, 218 (2013).  CrossRef
  6. G.Ye. Davydyuk, L.V. Bulatets'ka, V.V. Bozhko et al., Physical Properties of Ternary Chalcogenides (Volyn National Univ., Lutsk, 2009) (in Ukrainian).
  7. G. Lakshminarayana, M. Piasecki, G.E. Davydyuk et al., Mater. Chem. Phys. 135, 837 (2012).  CrossRef
  8. V.L. Bonch-Bruevich, R. Enderlein, B. Esser, R. Keiper, A.G. Mironov, and I.P. Zvyagin, Elektronentheorie Ungeordneter Halbleiter (Wissenschaften, Berlin, 1984).
  9. N.F. Mott and E.A. Davies, Electronic Processes in NonCrystalline Materials (Oxford Univ. Press, Oxford, 1979).
  10. T.S. Moss, Optical Process in Semiconductors (Butterworths, London, 1959).
  11. A.F. Guseva and E.V. Zaks, Handbook of General and Inorganic Chemistry (Ekaterinburg, 2001) (in Russian).
  12. J.I. Pankove, Optical Processes in Semiconductors (Dover, New York, 1975).
  13. P.V. Zhukovskii, Ya. Partyka, P. Vengerek et al., Fiz. Tekh. Poluprovodn. 35, 937 (2001).
  14. H.P.D. Lanyon, Phys. Rev. 130, 1 (1963).  CrossRef
  15. J. Tauc, Optical Properties of Solids (North-Holland, Amsterdam, 1970).
  16. F. Urbach, Phys. Rev. 92, 1324 (1953).  CrossRef
  17. G.D. Cody, T. Tiedje, B. Abeles et al., Phys. Rev. Lett. 47, 1480 (1981).  CrossRef
  18. Physics and Chemistry of AIIBVI Compounds, edited by S.A. Medvedev (Mir, Moscow, 1970) (in Russian).
  19. N.A. Goryunova, Complex Diamond-Like Semiconductors (Sovetskoe Radio, Moscow, 1968) (in Russian).
  20. H. Mahr, Phys. Rev. 125, 1510 (1962).  CrossRef
  21. M.V. Kurik, Phys. Status Solidi A 8, 9 (1974).  CrossRef
  22. A.V. Kopytov and A.V. Kosobutskii, Fiz. Tverd. Tela 51, 1994 (2009).
  23. T.V. Panchenko, S.Yu. Kopylova, and Yu.G. Osetskii, Solid State Phys. 37, 2578 (1995).
  24. C. Rincon, S.M. Wasim, G. Marin et al., J. Appl. Phys. 90, 4423 (2001).  CrossRef