The effect of ZnO additions on the characteristics of LiNbO3 single crystals

The characteristics of ZnO-doped LiNbO3 crystals were analysed and compared with those of undoped and a 5-mol% MgO-doped LiNbO3 crystal. The optical and electrical properties of the LiNbO3 crystals showed that doping with Zn2+ increases the photorefractive resistance. The mechanism suggested is that...

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Veröffentlicht in:	Materials letters 2002-07, Vol.55 (1-2), p.116-120
Hauptverfasser:	Kim, Ki Hyun, Shim, Kwang Bo, Auh, Keun Ho
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity) Optical constants: refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of bulk materials and thin films Physics
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Zusammenfassung:	The characteristics of ZnO-doped LiNbO3 crystals were analysed and compared with those of undoped and a 5-mol% MgO-doped LiNbO3 crystal. The optical and electrical properties of the LiNbO3 crystals showed that doping with Zn2+ increases the photorefractive resistance. The mechanism suggested is that Zn2+ ions substitute for Nb(Li)4+ in nonstoichiometric LiNbO3 ([Li1-5xNb5x]Nb1-4xO3, x = 0-0.02) and this approach has proved useful in understanding the crystalline structure essential to analysis of these properties. 20 refs.
ISSN:	0167-577X 1873-4979
DOI:	10.1016/s0167-577x(01)00632-2