Vapor transport equilibration-induced formation of micron-sized ErNbO4 precipitates in Zn/Er-codoped LiNbO3 crystals

De Long Zhang; Ping Rang Hua; Liang Sun; Yu Heng Xu; E. Y.B. Pun

doi:10.1016/j.msec.2008.01.002

Vapor transport equilibration-induced formation of micron-sized ErNbO₄ precipitates in Zn/Er-codoped LiNbO₃ crystals

De Long Zhang^*
, Ping Rang Hua
, Liang Sun
, Yu Heng Xu
, E. Y.B. Pun

^*Corresponding author for this work

Tianjin University
City University of Hong Kong
School of Materials Science and Engineering, Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

Congruent LiNbO₃ crystals with Zn/Er-doping levels of 5.5/1, 6/0.15 and 7/0.8 mol%/mol% were thermally treated at 1100 °C over 101 h using vapor transport equilibration (VTE) technique. It is shown that the VTE treatment has brought these crystals closer to stoichiometric composition. X-ray powder diffraction and Er³⁺ spectroscopic characterizations show that the VTE treatment induced formation of micron-sized ErNbO₄ precipitates on the surface and in the bulk of all crystals studied. It was observed using an optical microscope that the precipitates grow preferably along X, Y and Z axes of the host matrix, and show different morphologies, densities and dimensions, depending on the Er³⁺ and Zn³⁺ doping level. The formation origin of the precipitate is qualitatively explained.

Original language	English
Pages (from-to)	1289-1296
Number of pages	8
Journal	Materials Science and Engineering C
Volume	28
Issue number	8
DOIs	https://doi.org/10.1016/j.msec.2008.01.002
State	Published - 1 Dec 2008
Externally published	Yes

Keywords

Micron-sized ErNbO precipitate
Morphology
Phase transformation
Vapor transport equilibration
Zn:Er:LiNbO crystal

Access to Document

10.1016/j.msec.2008.01.002

Cite this

@article{c2c603349154423fa064b0bb18bc5161,

title = "Vapor transport equilibration-induced formation of micron-sized ErNbO4 precipitates in Zn/Er-codoped LiNbO3 crystals",

abstract = "Congruent LiNbO3 crystals with Zn/Er-doping levels of 5.5/1, 6/0.15 and 7/0.8 mol\%/mol\% were thermally treated at 1100 °C over 101 h using vapor transport equilibration (VTE) technique. It is shown that the VTE treatment has brought these crystals closer to stoichiometric composition. X-ray powder diffraction and Er3+ spectroscopic characterizations show that the VTE treatment induced formation of micron-sized ErNbO4 precipitates on the surface and in the bulk of all crystals studied. It was observed using an optical microscope that the precipitates grow preferably along X, Y and Z axes of the host matrix, and show different morphologies, densities and dimensions, depending on the Er3+ and Zn3+ doping level. The formation origin of the precipitate is qualitatively explained.",

keywords = "Micron-sized ErNbO precipitate, Morphology, Phase transformation, Vapor transport equilibration, Zn:Er:LiNbO crystal",

author = "Zhang, \{De Long\} and Hua, \{Ping Rang\} and Liang Sun and Xu, \{Yu Heng\} and Pun, \{E. Y.B.\}",

year = "2008",

month = dec,

day = "1",

doi = "10.1016/j.msec.2008.01.002",

language = "英语",

volume = "28",

pages = "1289--1296",

journal = "Materials Science and Engineering C",

issn = "0928-4931",

publisher = "Elsevier Ltd",

number = "8",

}

TY - JOUR

T1 - Vapor transport equilibration-induced formation of micron-sized ErNbO4 precipitates in Zn/Er-codoped LiNbO3 crystals

AU - Zhang, De Long

AU - Hua, Ping Rang

AU - Sun, Liang

AU - Xu, Yu Heng

AU - Pun, E. Y.B.

PY - 2008/12/1

Y1 - 2008/12/1

N2 - Congruent LiNbO3 crystals with Zn/Er-doping levels of 5.5/1, 6/0.15 and 7/0.8 mol%/mol% were thermally treated at 1100 °C over 101 h using vapor transport equilibration (VTE) technique. It is shown that the VTE treatment has brought these crystals closer to stoichiometric composition. X-ray powder diffraction and Er3+ spectroscopic characterizations show that the VTE treatment induced formation of micron-sized ErNbO4 precipitates on the surface and in the bulk of all crystals studied. It was observed using an optical microscope that the precipitates grow preferably along X, Y and Z axes of the host matrix, and show different morphologies, densities and dimensions, depending on the Er3+ and Zn3+ doping level. The formation origin of the precipitate is qualitatively explained.

AB - Congruent LiNbO3 crystals with Zn/Er-doping levels of 5.5/1, 6/0.15 and 7/0.8 mol%/mol% were thermally treated at 1100 °C over 101 h using vapor transport equilibration (VTE) technique. It is shown that the VTE treatment has brought these crystals closer to stoichiometric composition. X-ray powder diffraction and Er3+ spectroscopic characterizations show that the VTE treatment induced formation of micron-sized ErNbO4 precipitates on the surface and in the bulk of all crystals studied. It was observed using an optical microscope that the precipitates grow preferably along X, Y and Z axes of the host matrix, and show different morphologies, densities and dimensions, depending on the Er3+ and Zn3+ doping level. The formation origin of the precipitate is qualitatively explained.

KW - Micron-sized ErNbO precipitate

KW - Morphology

KW - Phase transformation

KW - Vapor transport equilibration

KW - Zn:Er:LiNbO crystal

UR - https://www.scopus.com/pages/publications/56249113309

U2 - 10.1016/j.msec.2008.01.002

DO - 10.1016/j.msec.2008.01.002

M3 - 文章

AN - SCOPUS:56249113309

SN - 0928-4931

VL - 28

SP - 1289

EP - 1296

JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

IS - 8

ER -

Vapor transport equilibration-induced formation of micron-sized ErNbO₄ precipitates in Zn/Er-codoped LiNbO₃ crystals

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this