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Polytypes of monoclinic TlInS2

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Abstract

The polytypes of monoclinic TlInS2 (c ∼ 15, 60, 120 Å) and triclinic TlInS2 (c ∼ 30 Å) were prepared. The positions of edge excitons and the band gaps were determined by the optical and photoelectric measurements. It was found that the maxima in the temperature dependences of dielectric constants of pure polytypes are situated at different temperatures. The photoconductivity spectra and the capacitive measurements showed that pure polytypes are unstable and transform with time into a mixture of the monoclinic polytypes of TlInS2. It is also established that all polytypes of monoclinic crystals tend to transform to the triclinic system.

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References

  1. Hahn, H. and Wellman, B., Uber ternare halkogenide des Thalliums mit Gallium und Indium, Naturwissenschaften, 1967, vol. 54, no. 2, p. 42.

    Google Scholar 

  2. Muller, D, Poltman, F.E., and Hahn, H., Zur struktur ternare halcogenide des Thallium mit Aluminium, Gallium und Indium,Z. Naturforsch.,1974, vol. 29, pp. 117–118.

    Google Scholar 

  3. Isaaks, T.J., Determination of Crystal Symmetry of the Polymorphs of Thallium-Indium Disulfide TlInS2, Z. Kristallogr., 1971, vol. 141, pp. 104–108.

    Google Scholar 

  4. Nadzhafov, A.I., Alekperov, O.Z., and Guseinov, G.G., Preparation and Properties of the Orthorhombic Modification of TlInS2, Neorg. Mater., 2005, vol. 41, no. 2, pp. 138–142.

    Google Scholar 

  5. Alekperov, O.Z. and Nadjafov, A.I., Growth of Orthorhombic and Tetragonal Modifications of TlInS2 from Monoclinic Crystal, Proc. Int. Conf. “Fizika-2005”, Baku, 2005, pp. 174–179.

  6. Range, K.-J., Engert, G., Muller, W, and Weiss, A., Hochdrucksinthese und kristal structuren von TlInS2-II und TlInS2-III, Z. Naturforsch., 1974, vol. 29, pp. 181–184.

    CAS  Google Scholar 

  7. Aliev, S.N., Nadzhafov, A.I, and Alekperov, O.Z., Preparation and Study of the Hexagonal Modification of TlInS2, Neorg. Mater., 1991, vol. 27, no. 3, pp. 621–622.

    CAS  Google Scholar 

  8. Nadzhafov, A.I., and Alekperov, O.Z., X-ray Study of the Transition of Monoclinic TlInS2 Crystals into Orthorhombic Phase, Izv. NAN Azerbaidjana, Ser. Fiz-Mat. Tekhn. Nauk, 2005, no. 2, pp. 61–69.

  9. Alekperov, O.Z. and Nadzhafov, A.I., Anomalies of Dielectric Constant in the Polytypes of Monoclinic Modification of TlInS2, Neorg. Mater., 2004, vol. 40, no. 12, pp. 1423–1426.

    Article  Google Scholar 

  10. Allakhverdiev, K.R., Baranov, A.I., Mamedov, T.G. et al., Phase Transition and Polytypes in β-TlInS2 Ferroelectric-Semiconductor, Ferroelectrics, Lett. Sec. 1988, vol. 8, nos. 5–6, pp. 125–133.

    Article  CAS  Google Scholar 

  11. Alekperov, O.Z., Nadzhafov, A.I., and Mamedov, T.G., Azerbaidzhan Patent a 2005 0278.

  12. Ukhanob, Yu.I., Opticheskie Svoistva Poluprovodnikov (Optical Properties of Semiconductors), Moscow: Nauka, 1977.

    Google Scholar 

  13. Alekperov, O.Z., Suleimanov, R.A., and Gamzaev, D.O., Two-Period Character of Interference in the Spectra of Layered GeS Crystal, Fiz. Tverd. Tela, 1993, vol. 35, no. 1, pp. 184–187.

    CAS  Google Scholar 

  14. Abdullaev, G.B., Abutalybov, G.I., and Aliev, A.A., Free and Bond Excitons in TlInS2 Crystals, Pis’ma Zh. Exp. Teor. Fiz., 1983, vol. 38, no. 11, pp. 525–526.

    CAS  Google Scholar 

  15. Belen’kii, G.L., Salaev, E.Yu., and Suleimanov, R.A., Deformation Phenomena in Layered Crystals, Usp. Fiz. Nauk, 1988, vol. 155, no. 1, pp. 89–127.

    CAS  Google Scholar 

  16. Mamedov, T.G. and Suleimanov, R.A., Influence of Lattice Deformation and Phase Transitions on Electronic Spectra of Layered Semiconductors TlGaS2, TlGaSe2, and TlInS2, Fiz. Tverd. Tela, 2003, vol. 45, no. 12, pp. 2141–2146.

    Google Scholar 

  17. Panfilov, V.V., Subbotin, S.T., Vereshagin, L.F., et al., On Exciton Absorption, Band Structure, and Phase Transformation of GaSe under Pressure, Phys. Status Solidi B, 1975, vol. 72, pp. 823–831.

    Article  CAS  Google Scholar 

  18. Abakumov, V.N., Perel, V.I., and Yassievich, I.N., Nonradiative Recombination in Semiconductors, Amsterdam: north Holland, 1991.

    Google Scholar 

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Authors and Affiliations

  1. Institute of Physics, Academy of Sciences of Azerbaidzhan, Baku, Azerbaidzhan

    O. Z. Alekperov & A. I. Nadzhafov

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  1. O. Z. Alekperov
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  2. A. I. Nadzhafov
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Correspondence to O. Z. Alekperov.

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Original Russian Text © O.Z. Alekperov, A.I. Nadzhafov, 2009, published in Neorganicheskie Materialy, 2008, Vol. 45, No. 1, pp. 9–14.

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Alekperov, O.Z., Nadzhafov, A.I. Polytypes of monoclinic TlInS2 . Inorg Mater 45, 7–12 (2009). https://doi.org/10.1134/S0020168509010026

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  • DOI: https://doi.org/10.1134/S0020168509010026

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