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Funct. Mater. 2013; 20 (1): 59-63.

http://dx.doi.org/10.15407/fm20.01.059

Exciton absorption spectrum of thin (KI)1–x(PbI2)x films

O.N.Yunakova[1], V.K.Miloslavskii[1], E.N.Kovalenko[2]

[1]V.Karazin Kharkiv National University, 4 Svobody Sq., 61022 Kharkiv, Ukraine
[2]Kharkiv National University of Radioelectronics, 14 Lenin Ave., 61166 Kharkiv, Ukraine

Abstract: 

The absorption spectra of thin films of (KI)1–x(PbI2)x 0.1≤ x≤ 0.5 were investigated in the spectral interval 2–6 eV. The formation of two compounds KPbI3 and K4PbI6 in system KI–PbI2 was determined on the basis of the spectra analysis. It was shown, that exciton excitations in the investigated compounds are localized in sublattice containing lead ions and related to excitons of the intermediate bond.

References: 

1. I.I.Ilyasov, A.G.Bergman, J. General Chem., 26, 981 (1956).

2. I.I.Ilyasov, D.G.Barseghov, I.G.Berikashvili et al., J. Inorg. Chem., 14, 1484 (1969).

3. E.A.Seeger, V.V.Cockle, G.A.Babic et al., J. Inorg. Chem., 25, 2168 (1980).

4. I.N.Belyaev, E.A.Shurgin, N.S.Kudryashov, J. Inorg. Chem., 17, 2812 (1972).

5. A.S.Voloshinovsky, S.V.Myagkota, A.V.Gloskovsky, J. Phys. Res., 4, 335 (2000).

6. S.Kondo, K.Amaya, T.Saito, J. Phys.:Condens. Matter., 15, 971 (2003). http://dx.doi.org/10.1088/0953-8984/15/6/324

7. O.N.Yunakova, V.K.Miloslavskii, E.N.Kovalenko, Optics and Spectroscopy, 112, 90 (2012). http://dx.doi.org/10.1134/S0030400X12010249

8. O.N.Yunakova, V.K.Miloslavskii, E.N.Kovalenko et al., Low Temper. Phys., 38, 1191 (2012). http://dx.doi.org/10.1063/1.4758777

9. N.S.Pidzyraylo, A.S.Voloshinovsky, S.V.Myagkota, Optics and Spectroscopy, 64, 1187 (1988).

10. O.N.Yunakova, V.K.Miloslavskii, E.N.Kovalenko, Optics and Spectroscopy, 104, 631 (2008). http://dx.doi.org/10.1134/S0030400X08040115

11. D.M.Trots, S.V.Myagkota, J. Phys. Chem. Sol., 69, 2520 (2008). http://dx.doi.org/10.1016/j.jpcs.2008.05.007

12. S.Radhakrishna, K.P.Pande, Phys. Rev., B 7, 424 (1973). http://dx.doi.org/10.1103/PhysRevB.7.424

13. K.Schmitt, Phys. Stat. Sol. (b), 135, 389 (1986). http://dx.doi.org/10.1002/pssb.2221350138

14. T.Tsuboi, Phys. Stat. Sol. (b), 96, 321 (1979). http://dx.doi.org/10.1002/pssb.2220960134

15. Y.Onodera, Y.Toyasawa, J. Phys. Soc. Jap., 22, 833 (1967). http://dx.doi.org/10.1143/JPSJ.22.833

16. S.P.Liashenko, V.K.Miloslavskii, Optics and Spectroscopy, 16, 151 (1964).

17. S.H.Wemple, Phys. Rev. B, 7, 3767 (1973). http://dx.doi.org/10.1103/PhysRevB.7.3767

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