Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. Founded at 2009

Specific features of the defect structure of LiNbO3:B crystals

N.V. Sidorov, A.V. Kadetova, R.A. Titov, N.A. Teplyakova, M.N. Palatnikov

Tananaev Institute of Chemistry  Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»

DOI: 10.26456/pcascnn/2022.14.235

Original article

Abstract: Specific features of the defect structure of nominally pure LiNbO3:B crystals were studied by the X-ray diffraction analysis. Nominally pure LiNbO3:B crystals were grown by Czochralski using the technology of the direct solid-phase doping of the congruent charge by orthoboric acid (H3BO3). The bonds lengths of Me-O in MeO6 clusters (Me-Li, Nb) determine the ferroelectric and nonlinear optical properties of the lithium niobate crystal. The values of these bonds in LiNbO3:B crystals differ significantly from the bonds lengths of the nominally pure congruent crystal LiNbO3cong. The differences in the bonds lengths are caused by a change in the properties of the boron-containing melt, technological parameters of the growth of LiNbO3:B crystals, and the localization of a trace amounts of boron in tetrahedral voids of the lithium niobate crystal structure. The results of the study of LiNbO3:B crystals were compared with those for nominally pure LiNbO3cong crystals and near-stoichiometric LiNbO3stoich (5,5 wt% K2O) ones.

Keywords: lithium niobate, crystal, defects, direct solid-phase doping, X-ray diffraction analysis

  • Nikolay V. Sidorov – Dr. Sc., Professor, Chief Researcher and as Head of the Vibrational Spectroscopy Sector of the Electronic Engineering Materials Laboratory, Tananaev Institute of Chemistry  Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»
  • Alexandra V. Kadetova – postgraduate studen, Tananaev Institute of Chemistry  Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»
  • Roman A. Titov – Junior Researcher, Vibrational Spectroscopy Sector of the Electronic Engineering Materials Laboratory, Tananaev Institute of Chemistry  Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»
  • Natalya A. Teplyakova – Ph. D., Senior Researcher, Vibrational Spectroscopy Sector of the Electronic Engineering Materials Laboratory, Tananaev Institute of Chemistry  Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»
  • Mikhail N. Palatnikov – Dr. Sc., Chief Researcher and as Head of the Electronic Engineering Materials Laboratory, Tananaev Institute of Chemistry  Subdivision of the Federal Research Centre «Kola Science Centre of the Russian Academy of Sciences»

Reference:

Sidorov N.V., Kadetova A.V., Titov R.A., Teplyakova N.A., Palatnikov M.N. Osobennosti defektnoj struktury kristallov LiNbO3:B [Specific features of the defect structure of LiNbO3:B crystals], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2022, issue 14, pp. 235-242. DOI: 10.26456/pcascnn/2022.14.235. ⎘

Full article (in Russian): download PDF file

References:

1. Sidorov N.V., Volk T.P., Mavrin B.N., Kalinnikov V.T. Niobat litiya: defekty, fotorefraktsiya, kolebatel'nyi spektr, polyaritony [Lithium niobate: defects, photorefraction, vibrational spectrum, polaritons]. Moscow, Nauka Publ., 2003, 255 p. (In Russian).
2. Kuz'minov Yu.S. Elektroopticheskij i nelinejnoopticheskij kristall niobata litiya [Electro-optical and nonlinear-optical crystal of lithium niobate]. Moscow, Nauka Publ., 1987, 264 p. (In Russian).
3. Photorefractive materials and their applications 1, ed by. Р. Gunter, J.-P. Huignard. New York, Springer, 2006, XIV, 426 р. DOI: 10.1007/b106782.
4. Lehnert H., Boysen H., Frey F., Hewat A.W., Radaelli P. A neutron powder investigation of the high-temperature structure and phase transition in stoichiometric LiNbO3, Crystalline Materials, 1997, vol. 212, issue 10, pp. 712-719. DOI: 10.1524/zkri.1997.212.10.712.
5. Volk T., Wohlecke M. Lithium niobate. Defects, photorefraction and ferroelectric switching. Berlin, Springer, 2008, 250 p. DOI: 10.1007/978-3-540-70766-0.
6. Can H., Shichao W., Ning Y. Subsolidus phase relations and the crystallization region of LiNbO3 in the system Li2O-B2O3-Nb2O5, Journal of Alloys and Compounds, 2010, vol. 502, issue 1, pp. 211-214. DOI: 10.1016/j.jallcom.2010.04.146.
7. Sidorov N.V., Teplyakova N.A., Makarova O.V. et al.Boron influence on defect structure and properties of lithium niobate сrystals, Crystals, 2021, vol. 11, issue 5, art. no. 458, 37 p. DOI: 10.3390/cryst11050458.
8. Masloboeva S.M., Kadyrova G.I., Arutyunyan L.G. Synthesis of Nb2O5〈В〉 solid precursors and LiNbO3〈В〉 batches and their phase compositions, Russian Journal of Inorganic Chemistry, 2016, vol. 61, issue 4, pp. 412-419. DOI: 10.1134/S0036023616040148.
9. Elizarova I.R., Masloboeva S.M. Composition and homogeneity of Nb2O5〈В〉 solid precursors and LiNbO3〈В〉 batches, Russian Journal of Inorganic Chemistry, 2018, vol. 63, issue 2, pp. 239-244. DOI: 10.1134/S0036023618020055.
10. Palatnikov M.N., Biryukova I.V., Makarova O.V. et al. Poluchenie i svojstva kristallov niobata litiya, vyrashchennykh iz rasplavov kongruentnogo sostava, legirovannykh borom [Preparation and properties of lithium niobate crystals grown from melts of congruent composition doped with boron], Trudy Kol'skogo nauchnogo tsentra RAN. Khimiya i materialovedenie. Spetsvypusk [Proceedings of the Kola Scientific Center of the Russian Academy of Sciences. Chemistry and materials science. Special issue], 2015, no. 5(31), pp. 434-438. (In Russian).

⇐ Prevoius journal article | Content | Next journal article ⇒