Abstract
This paper reports on a study of the transient optical absorption exhibited by Li2B4O7 (LTB) in the visible and UV spectral regions. Using absorption optical spectroscopy with nanosecond time resolution, it is established that the transient optical absorption (TOA) in these crystals originates from optical transitions in hole centers and that the kinetics of the optical-density relaxation is controlled by interdefect tunneling recombination, which involves these hole centers and electronic Li0 centers representing neutral lithium atoms. At 290 K, the Li0 centers migrate in a thermally stimulated, one-dimensional manner, without carrier ejection into the conduction or valence band. The kinetics of the pulsed LTB cathodoluminescence is shown to be controlled by a relaxation process connected with tunneling electron transfer from a deep center to a small hole polaron migrating nearby, a process followed by the formation of a self-trapped exciton (STE) in an excited state. Radiative annihilation of the STE accounts for the characteristic σ-polarized LTB luminescence at 3.6 eV, whose kinetics is rate-limited by the tunneling electron transfer.
Similar content being viewed by others
References
R. Komatsu, T. Sugawara, K. Sassa, et al., Appl. Phys. Lett. 70(26), 3492 (1997).
J. D. Garret, M. Natarajan, and J. E. Greedan, J. Cryst. Growth 41, 225 (1977).
M. Adachi, T. Shiosaki, and A. Kawabata, Jpn. J. Appl. Phys., Part 1 24(S3), 72 (1985).
M. Adachi, S. Yamamichi, M. Ohira, et al., Jpn. J. Appl. Phys., Part 1 28(S28-2), 111 (1989).
T. Kitagawa, K. Higuchi, and K. Kodaira, J. Ceram. Soc. Jpn. 105, 616 (1997).
T. P. Balakireva, V. V. Lebold, V. A. Nefedov, et al., Inorg. Mater. 25(3), 462 (1989).
S. J. Fan, G. S. Shen, W. Wang, et al., J. Cryst. Growth 99(1–4), 811 (1990).
K. Byrappa, V. Rajeev, V. J. Hanumesh, et al., J. Mater. Res. 11(10), 2616 (1996).
J. Krogh-Moe, Acta Crystallogr. 15(3), 190 (1962).
J. Krogh-Moe, Acta Crystallogr. B 24(2), 179 (1968).
A. É. Aliev, Ya. V. Burak, and I. T. Lyseiko, Izv. Akad. Nauk SSSR, Neorg. Mater. 26(9), 1991 (1990).
S. F. Radaev, N. I. Sorokin, and V. I. Simonov, Fiz. Tverd. Tela (Leningrad) 33(12), 3597 (1991) [Sov. Phys. Solid State 33, 2024 (1991)].
A. O. Matkovskii, D. Yu. Sugak, S. B. Ubizskii, O. I. Shpotyuk, E. A. Chernyi, N. M. Vakiv, and V. A. Mokritskii, Influence of Ionizing Radiations on Electronics Materials (Svit, L’vov, 1994).
Ya. V. Burak, B. N. Kopko, I. T. Lyseiko, et al., Izv. Akad. Nauk SSSR, Neorg. Mater. 25(7), 1226 (1989).
I. N. Ogorodnikov, V. A. Pustovarov, A. V. Kruzhalov, et al., Fiz. Tverd. Tela (St. Petersburg) 42(3), 454 (2000) [Phys. Solid State 42, 464 (2000)].
A. Yu. Kuznetsov, L. I. Isaenko, A. V. Kruzhalov, et al., Fiz. Tverd. Tela (St. Petersburg) 41(1), 57 (1999) [Phys. Solid State 41, 48 (1999)].
B. P. Gritsenko, V. Yu. Yakovlev, and Yu. N. Safonov, in Proceedings of All-Union Conference on Modern State and Advanced Aspects of High-Speed Photography, Cinematography, and Metrology of Fast Processes, Moscow, 1978, p. 61.
V. N. Parmon, R. F. Khairutdinov, and K. I. Zamaraev, Fiz. Tverd. Tela (Leningrad) 16(9), 2572 (1974) [Sov. Phys. Solid State 16, 1672 (1974)].
E. F. Dolzhenkova, M. F. Dubovik, A. V. Tolmachev, et al., Pis’ma Zh. Tekh. Fiz. 25(17), 78 (1999) [Tech. Phys. Lett. 25, 709 (1999)].
S. Matyyasik and Yu. V. Shaldin, Fiz. Tverd. Tela (St. Petersburg) 43(8), 1405 (2001) [Phys. Solid State 43, 1464 (2001)].
A. É. Aliev, V. F. Krivorotov, and P. K. Khabibulaev, Fiz. Tverd. Tela (St. Petersburg) 39(9), 1548 (1997) [Phys. Solid State 39, 1378 (1997)].
I. N. Ogorodnikov, A. V. Porotnikov, S. V. Kudyakov, et al., Fiz. Tverd. Tela (St. Petersburg) 39(9), 1535 (1997) [Phys. Solid State 39, 1366 (1997)].
Yu. R. Zakis, L. N. Kantorovich, E. A. Kotomin, V. N. Kuzovkov, I. A. Tale, and A. L. Shlyuger, Models of Processes in Wide-Gap Solids with Defects (Zinatne, Riga, 1991).
A. É. Aliev and R. R. Valetov, Kristallografiya 36(6), 1507 (1991) [Sov. Phys. Crystallogr. 36, 855 (1991)].
A. É. Aliev, I. N. Kholmanov, and P. K. Khabibullaev, Solid State Ionics 118(1–2), 111 (1999).
A. É. Aliev, I. N. Kholmanov, and P. K. Khabibullaev, Dokl. Akad. Nauk 365(2), 178 (1999) [Dokl. Phys. 44, 147 (1999)].
Ch. B. Lushchik and A. Ch. Lushchik, Decay of Electron Excitations with Defect Formation in Solids (Nauka, Moscow, 1989).
U. T. Rogulis and I. K. Vitol, in Electron Processes and Defects in Ionic Crystals (Latv. Univ. im. P. Stuchki, Riga, 1985), pp. 22–23.
A. K. Pikaev, Modern Radiation Chemistry. Solid and Polymers. Applied Aspects (Nauka, Moscow, 1987).
Ya. V. Burak, Ya. O. Dovgii, and I. V. Kityk, Zh. Prikl. Spektrosk. 52(1), 126 (1989).
V. N. Moiseenko, A. V. Vdovin, and Ya. V. Burak, Opt. Spektrosk. 81(4), 620 (1996) [Opt. Spectrosc. 81, 565 (1996)].
A. V. Vdovin, V. N. Moiseenko, and Ya. V. Burak, Opt. Spektrosk. 90(4), 625 (2001) [Opt. Spectrosc. 90, 555 (2001)].
I. N. Ogorodnikov, V. A. Pustovarov, L. I. Isaenko, et al., Nucl. Instrum. Methods Phys. Res. A 448(1–2), 467 (2000).
S. Iwai, T. Tokizaki, A. Nakamura, et al., Phys. Rev. Lett. 76(10), 1691 (1996).
E. A. Vasil’chenko, I. A. Kudryavtseva, A. Ch. Lushchik, et al., Fiz. Tverd. Tela (St. Petersburg) 40(7), 1238 (1998) [Phys. Solid State 40, 1128 (1998)].
I. N. Ogorodnikov, V. A. Pustovarov, M. Kirm, et al., Fiz. Tverd. Tela (St. Petersburg) 43(8), 1396 (2001) [Phys. Solid State 43, 1454 (2001)].
M. Martini, C. Furetta, C. Sanipoli, et al., Radiat. Eff. Defects Solids 135(1–4), 133 (1995).
M. Martini, F. Meinardi, L. Kovács, and K. Polgar, Radiat. Prot. Dosim. 65(1–4), 343 (1996).
Author information
Authors and Affiliations
Additional information
__________
Translated from Fizika Tverdogo Tela, Vol. 44, No. 6, 2002, pp. 1039–1047.
Original Russian Text Copyright © 2002 by Ogorodnikov, Yakovlev, Kruzhalov, Isaenko.
Rights and permissions
About this article
Cite this article
Ogorodnikov, I.N., Yakovlev, V.Y., Kruzhalov, A.V. et al. Transient optical absorption and luminescence in Li2B4O7 lithium tetraborate. Phys. Solid State 44, 1085–1092 (2002). https://doi.org/10.1134/1.1485012
Received:
Issue Date:
DOI: https://doi.org/10.1134/1.1485012