Abstract
Low-temperature photoluminescence (PL) of unactivated KDP crystals under selective synchrotron excitation is for the first time measured with subnanosecond time resolution. Time-resolved PL (2–6 eV) and PL excitation (4–35 eV) spectra, as well as PL kinetics, are measured at 7 K. From the acquired experimental data, luminescent bands related to intrinsic defects of the KDP lattice are identified; in particular, the long-wave band at 2.6 eV is assigned to L defects, and the band at 3.5–3.6 eV is attributed to D defects. An efficient energy transfer over the hydrogen sublattice is shown to take place in KDP at low temperatures. It results in the efficient excitation of L and D center photoluminescence in the fundamental absorption region, at electron transitions to the bottom levels of the conduction band, corresponding to the states of the hydrogen atom. The band gap E g is evaluated to be 8.0–8.8 eV.
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References
1. L. N. Rashkovich, KDP-family Single Crystals (A. Hilger, Bristol, 1991).
2. W. L. Smith, Appl. Opt. 16, 1798 (1977).
3. D. Eimerl, Ferroelectrics 72, 95 (1987).
4. N. P. Zaitseva, J. J. De Yoreo, M. R. Dehaven, et al., J. Cryst. Growth 180, 255 (1997).
5. V. T. Kuanyshev, T. A. Belykh, I. N. Ogorodnikov, et al., Surface Investigation, X-ray, Synchrotron and Neutron Techniques 15, 773 (2000).
6. B. C. Frazer and R. Pepinsky, Acta Crystallogr. 6, 273 (1953).
7. W. Kanzig, Solid State Phys. 4, 1 (1957).
8. G. A. Smolenskiï, V. A. Bokov, and V. A. Isupova, Ferroelectrics and Antiferroelectrics (Nauka, Leningrad, 1971).
9. A. M. Lotonov, I. N. Medvedev, N. D. Gavrilova, and V. K. Novik, Neorg. Mater. 29, 816 (1993).
10. G. Baldini, M. Cottini, and E. Grilli, Solid State Commun. 11, 1257 (1972).
11. S. Saito, K. Wada, and R. Onaka, J. Phys. Soc. Jpn. 37, 711 (1974).
12. G. Zimmerer, Nucl. Instrum. Methods Phys. Res. A 308, 178 (1991).
13. A. A. Alybakov, A. A. Abdrazakov, O. M. Arbotoev, and K. Kudabaev, Cryst. Res. Technol. 23, 1401 (1988).
14. K. A. Müller, Ferroelectrics 72, 273 (1987).
15. É. P. Lokshin, Kristallografiya 41, 1125 (1996) [Crystallogr. Rep. 41, 1070 (1996)].
16. S. D. Setzler, K. T. Stevens, L. E. Hallibirton, et al., Phys. Rev. B 57, 2643 (1998).
17. W. E. Hughes and W. G. Moulton, J. Chem. Phys. 39, 1359 (1963).
18. K. Tsuchida, P. Abe, and M. Naito, J. Phys. Soc. Jpn. 35, 806 (1973).
19. R. C. Du Varney and R. P. Kohin, Phys. Rev. Lett. 24, 259 (1968).
20. L. B. Harris and G. J. Vella, J. Chem. Phys. 58, 4550 (1973).
21. A. I. Ryabov, N. S. Stel’makh, G. N. Pirogova, et al., Fiz. Tverd. Tela (Leningrad) 33, 2660 (1991) [Sov. Phys. Solid State 33, 1502 (1991)].
22. J. A. McMillan and J. M. Clemens, J. Chem. Phys. 68, 3627 (1978).
23. K. T. Stevens, N. Y. Garces, L. E. Halliburton, et al., Appl. Phys. Lett. 75, 1503 (1999).
24. E. Diéguez, J. M. Cabrera, and F. Agullo López, J. Chem. Phys. 81, 3369 (1984).
25. A. N. Levchenko, V. M. Shul’ga, and A. O. Doroshenko, Fiz. Tverd. Tela (Leningrad) 32, 2468 (1990) [Sov. Phys. Solid State 32, 1432 (1990)].
26. A. K. S. Song and R. T. Williams, Self-Trapped Excitons (Springer-Verlag, Berlin, 1996).
27. V. T. Kuanyshev, I. N. Ogorodnikov, and M. M. Kidibaev, in Problems of Spectroscopy and Spectrometry: Interuniversity Collection of Scientific Works (Ural. Gos. Tekh. Univ., Yekaterinburg, 1999), Vol. 2, p. 9.
28. G. M. Davis, L. Zhang, P. J. Chandler, and P. D. Townsend, IEEE Photonics Technol. Lett. 5, 430 (1993).
29. C. D. Marshall, S. A. Payne, M. A. Henesian, et al., J. Opt. Soc. Am. B 11, 774 (1994).
30. K. C. Wu and C. T. Chen, Appl. Phys. A A54, 209 (1992).
31. N. Ye, Q. Chen, B. Wu, and C. T. Chen, J. Appl. Phys. 84, 555 (1998).
32. I. V. Stasyuk and R. Ya. Stetsiv, Izv. Akad. Nauk SSSR, Ser. Fiz. 55, 522 (1991).
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Translated from Optika i Spektroskopiya, Vol. 91, No. 2, 2001, pp. 243–251.
Original Russian Text Copyright © 2001 by Ogorodnikov, Pustovarov, Shul’gin, Kuanyshev, Satybaldieva.
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Ogorodnikov, I.N., Pustovarov, V.A., Shul’gin, B.V. et al. Low-temperature time-resolved vacuum ultraviolet luminescent spectroscopy of KH2PO4 crystals with defects. Opt. Spectrosc. 91, 224–231 (2001). https://doi.org/10.1134/1.1397843
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DOI: https://doi.org/10.1134/1.1397843