Nlebanya dị nkenke nke Lithium Niobate Crystal na Ngwa Ya - Akụkụ 2: Nlebanya nke Lithium Niobate Crystal

Nlebanya dị nkenke nke Lithium Niobate Crystal na Ngwa Ya - Akụkụ 2: Nlebanya nke Lithium Niobate Crystal

LiNbO3 adịghị ahụ na ọdịdị dị ka a eke ịnweta. The crystal Ọdịdị nke lithium niobate (LN) crystals bụ nke mbụ kọrọ site Zachariasen na 1928. Na 1955 Lapitskii na Simanov nyere lattice paramita nke hexagonal na trigonal sistemu nke LN crystal site X-ray ntụ ntụ analysis. Na 1958, Reisman na Holtzberg nyere pseudoelement nke Li2O-Nb2O5 site na nyocha okpomọkụ, nyocha nke diffraction X-ray na nha njupụta.

Eserese nke usoro na-egosi na Li3NbO4, LiNbO3, LiNb3O8 na Li2Nb28O71 niile enwere ike ịmepụta site na Li2O-Nb2O5. N'ihi nkwadebe kristal na ihe onwunwe, naanị LiNbO3 a mụọla ma tinye ya n'ọrụ. Dịka iwu izugbe nke aha kemịkalụ siri dị, LithiumNiobate kwesịrị ịbụ Li3NbO4, na LiNbO3 Ekwesịrị ịkpọ Lithium Metaniobate. N'oge mmalite, LiNbO3 n'ezie a na-akpọ lithium Metaniobate crystal, ma n'ihi na kristal LN nwere atọ ndị ọzọ siri ike na-adọs amụbeghị nke ọma, ugbu a LiNbO3 bụ ọ fọrọ nke nta ka akpọkwaghị ya Lithium Metniobate, ma a maara nke ọma dị ka Lithium Niobate.

LN Crystal-WISOPTIC

kristal LiNbO3 (LN) dị elu nke WISOPTIC.com mepụtara

Ebe na-agbaze nke mmiri mmiri na ihe siri ike nke kristal LN adabaghị na nha stoichiometric ya. Enwere ike itolite otu kristal dị elu nke nwere otu isi na ọdụ ọdụ n'ụzọ dị mfe site na usoro ịgbaze crystallization naanị mgbe ejiri otu ihe mejupụtara nke ogbo siri ike na ọkwa mmiri. Ya mere, kristal LN nwere ezigbo mmiri eutectic point dabara nke ọma ejirila ọtụtụ ebe. kristal LN anaghị ekwukarị na-ezo aka na ndị nwere otu ihe mejupụtara, yana ọdịnaya lithium ([Li]/[Li+Nb]) bụ ihe dịka 48.6%. Enweghị ọnụ ọgụgụ dị ukwuu nke ion lithium na kristal LN na-eduga n'ọtụtụ ntụpọ lattice, nke nwere mmetụta abụọ dị mkpa: Nke mbụ, ọ na-emetụta ihe onwunwe nke kristal LN; Nke abụọ, ntụpọ lattice na-enye ihe ndabere dị mkpa maka injinia doping nke kristal LN, nke nwere ike ịhazi ọrụ kristal nke ọma site na nhazi nke ihe ndị kristal, doping na valence akara nke ihe doped, nke bụkwa otu n'ime ihe ndị dị mkpa maka nlebara anya. LN kristal.

Dị iche na nkịtị LN crystal, e nwere nso stoichiometric LN crystal” onye [Li]/[Nb] bụ ihe dị ka 1. Ọtụtụ n'ime fotoelectric Njirimara nke a nso stoichiometric LN kristal bụ ndị a ma ama karịa nke nkịtị LN kristal, na ha na-enwe mmetụta karịa ọtụtụ fotoelectric Njirimara n'ihi na. nso-stoichiometric doping, ya mere a mụọla ha nke ọma. Otú ọ dị, ebe ọ bụ na kristal dị nso-stoichiometric LN abụghị eutectic na ihe siri ike na mmiri mmiri, ọ na-esiri ike ịkwadebe otu kristal dị elu site na Czochralski omenala. usoro. Ya mere, a ka nwere ọtụtụ ọrụ a ga-arụ iji kwado kristal dị nso-stoichiometric LN dị oke mma yana ọnụ ahịa maka ojiji bara uru.


Oge nzipu: Dec-27-2021