LiNbO₃ tsis pom nyob rau hauv tej yam ntuj tso mineral. Cov qauv siv lead ua ntawm lithium niobate (LN) crystals yog thawj zaug tshaj tawm los ntawm Zachariasen hauv 1928. Nyob rau hauv 1955 Lapitskii thiab Simanov muab lattice parameters ntawm hexagonal thiab trigonal systems ntawm LN siv lead ua los ntawm X-ray hmoov diffraction tsom xam. Nyob rau hauv 1958, Reisman thiab Holtzberg muab lub pseudolement ntawm Li₂O-Nb₂O₅ los ntawm thermal tsom xam, X-ray diffraction tsom xam thiab ntsuas qhov ceev.

Daim duab theem qhia tias Li₃NbO₄, LiNB₃, LiB₃O₈ thiab Li₂Nb₂₈O₇₁ tag nrho tuaj yeem tsim los ntawm Li₂O-Nb₂O₅. Vim yog siv lead ua thiab cov khoom siv, tsuas yog LiNbO₃ tau kawm dav thiab siv. Raws li txoj cai dav dav ntawm tshuaj naming, LithiumNiobate yuav tsum Li₃NbO₄, and LiNbO₃ yuav tsum hu ua Lithium Metaniobate. Thaum ntxov, LiNbO₃ yog tseeb hu ua Lithium Metaniobate siv lead ua, tab sis vim cov LN crystals nrog lwm yam peb lub zogs tsis tau kawm dav, tam sim no LiNbO₃ yog yuav luag tsis hu Lyam Metniobate, tab sis yog dav lub npe hu ua Lyam Niobate.

Zoo LiNbO3 (LN) siv lead ua tsim los ntawm WISOPTIC.com

Qhov sib xyaw ua ke ntawm cov kua thiab cov khoom sib xyaw ntawm LN siv lead ua tsis sib xws nrog nws qhov sib piv stoichiometric. Cov khoom siv zoo ib yam nrog tib lub taub hau thiab tus Tsov tus tw cov khoom tuaj yeem yooj yim loj hlob los ntawm cov txheej txheem yaj crystallization tsuas yog thaum cov khoom siv nrog tib lub ntsiab lus ntawm cov khoom theem thiab cov kua theem. Yog li, LN crystals nrog cov khoom zoo-kua eutectic point txuam cov cuab yeej tau siv dav. LN crystals feem ntau tsis hais txog cov uas muaj tib yam muaj pes tsawg leeg, thiab cov ntsiab lus lithium ([Li] / [Li + Nb]) yog li 48.6%. Qhov tsis muaj ntau ntawm lithium ions nyob rau hauv LN siv lead ua ua rau muaj ntau ntawm cov lattice defects, uas muaj ob yam tseem ceeb: Ua ntej, nws cuam tshuam cov khoom ntawm LN siv lead ua; Qhov thib ob, lattice defects muab lub hauv paus tseem ceeb rau doping engineering ntawm LN siv lead ua, uas tuaj yeem tswj cov khoom siv lead ua haujlwm zoo los ntawm kev tswj hwm cov khoom siv lead ua, doping thiab valence tswj ntawm doped ntsiab lus, uas kuj yog ib qho ntawm cov laj thawj tseem ceeb rau kev mloog. LN siv lead ua.

Sib txawv ntawm qhov zoo tib yam LN siv lead ua, muaj “nyob ze stoichiometric LN siv lead ua "nws [Li] / [Nb] yog hais txog 1. Ntau lub photoelectric zog ntawm no nyob ze stoichiometric LN crystals yog qhov tseem ceeb tshaj li cov zoo tib yam LN crystals, thiab lawv yog rhiab heev rau ntau photoelectric zog vim. nyob ze-stoichiometric doping, yog li lawv tau kawm ntau heev. Txawm li cas los xij, txij li qhov ze-stoichiometric LN siv lead ua tsis yog eutectic nrog cov khoom thiab cov khoom ua kua, nws yog ib qho nyuaj los npaj cov khoom siv lead ua zoo los ntawm cov pa Czochralski. txoj kev. Yog li ntawd tseem muaj ntau txoj haujlwm ua los npaj cov khoom zoo thiab raug nqi ze-stoichiometric LN siv lead ua rau kev siv tswv yim.