Li-rich vapor transport equilibration temperature dependence of surface composition of initially congruent LiNbO 3 Crystal

De-Long Zhang; Zhen Wang; Ping-Rang Hua; Edwin Yue-Bun Pun

doi:10.1111/j.1551-2916.2012.05381.x

Li-rich vapor transport equilibration temperature dependence of surface composition of initially congruent LiNbO ₃ Crystal

De-Long Zhang, Zhen Wang, Ping-Rang Hua, Edwin Yue-Bun Pun

Department of Electrical Engineering

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

3 Citations (Scopus)

Abstract

The influence of Li-rich vapor transport equilibration (VTE) on surface Li ₂O-content of 1-mm-thick, congruent X-, and Z-cut LiNbO ₃ crystal plates was studied against the VTE temperature. The VTE-induced surface Li ₂O-content increase was evaluated from measured birefringence. The results show that the increase follows the traditional Arrhenius law with a surface Li ₂O-content alteration constant (614 ± 136)/(91 ± 10) mol% and an activation energy (0.76 ± 0.05)/(0.53 ± 0.03) eV for the X/Z-cut plate. An empirical expression that correlates the VTE-induced surface Li ₂O-content alteration with both the VTE temperature and duration is presented. The expression is useful for producing a near-stoichiometric LiNbO ₃ plate with the desired surface Li ₂O-content via balancing the VTE temperature and duration. © 2012 The American Ceramic Society.

Original language	English
Pages (from-to)	2798-2800
Journal	Journal of the American Ceramic Society
Volume	95
Issue number	9
DOIs	https://doi.org/10.1111/j.1551-2916.2012.05381.x
Publication status	Published - Sept 2012

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@article{1c985f06ed7e486f8cc6c8245f04b930,

title = "Li-rich vapor transport equilibration temperature dependence of surface composition of initially congruent LiNbO 3 Crystal",

abstract = "The influence of Li-rich vapor transport equilibration (VTE) on surface Li 2O-content of 1-mm-thick, congruent X-, and Z-cut LiNbO 3 crystal plates was studied against the VTE temperature. The VTE-induced surface Li 2O-content increase was evaluated from measured birefringence. The results show that the increase follows the traditional Arrhenius law with a surface Li 2O-content alteration constant (614 ± 136)/(91 ± 10) mol% and an activation energy (0.76 ± 0.05)/(0.53 ± 0.03) eV for the X/Z-cut plate. An empirical expression that correlates the VTE-induced surface Li 2O-content alteration with both the VTE temperature and duration is presented. The expression is useful for producing a near-stoichiometric LiNbO 3 plate with the desired surface Li 2O-content via balancing the VTE temperature and duration. {\textcopyright} 2012 The American Ceramic Society.",

author = "De-Long Zhang and Zhen Wang and Ping-Rang Hua and Pun, {Edwin Yue-Bun}",

year = "2012",

month = sep,

doi = "10.1111/j.1551-2916.2012.05381.x",

language = "English",

volume = "95",

pages = "2798--2800",

journal = "Journal of the American Ceramic Society",

issn = "0002-7820",

publisher = "Wiley-Blackwell",

number = "9",

}

TY - JOUR

T1 - Li-rich vapor transport equilibration temperature dependence of surface composition of initially congruent LiNbO 3 Crystal

AU - Zhang, De-Long

AU - Wang, Zhen

AU - Hua, Ping-Rang

AU - Pun, Edwin Yue-Bun

PY - 2012/9

Y1 - 2012/9

N2 - The influence of Li-rich vapor transport equilibration (VTE) on surface Li 2O-content of 1-mm-thick, congruent X-, and Z-cut LiNbO 3 crystal plates was studied against the VTE temperature. The VTE-induced surface Li 2O-content increase was evaluated from measured birefringence. The results show that the increase follows the traditional Arrhenius law with a surface Li 2O-content alteration constant (614 ± 136)/(91 ± 10) mol% and an activation energy (0.76 ± 0.05)/(0.53 ± 0.03) eV for the X/Z-cut plate. An empirical expression that correlates the VTE-induced surface Li 2O-content alteration with both the VTE temperature and duration is presented. The expression is useful for producing a near-stoichiometric LiNbO 3 plate with the desired surface Li 2O-content via balancing the VTE temperature and duration. © 2012 The American Ceramic Society.

AB - The influence of Li-rich vapor transport equilibration (VTE) on surface Li 2O-content of 1-mm-thick, congruent X-, and Z-cut LiNbO 3 crystal plates was studied against the VTE temperature. The VTE-induced surface Li 2O-content increase was evaluated from measured birefringence. The results show that the increase follows the traditional Arrhenius law with a surface Li 2O-content alteration constant (614 ± 136)/(91 ± 10) mol% and an activation energy (0.76 ± 0.05)/(0.53 ± 0.03) eV for the X/Z-cut plate. An empirical expression that correlates the VTE-induced surface Li 2O-content alteration with both the VTE temperature and duration is presented. The expression is useful for producing a near-stoichiometric LiNbO 3 plate with the desired surface Li 2O-content via balancing the VTE temperature and duration. © 2012 The American Ceramic Society.

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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84865714782&origin=recordpage

U2 - 10.1111/j.1551-2916.2012.05381.x

DO - 10.1111/j.1551-2916.2012.05381.x

M3 - RGC 21 - Publication in refereed journal

SN - 0002-7820

VL - 95

SP - 2798

EP - 2800

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

IS - 9

ER -