Charge compensation mechanism in La-doped potassium sodium tantalate niobate ceramics

Huan Li; Qingxing Meng; Dewei Gong; Qian Shi; Zhongxiang Zhou

doi:10.1088/0022-3727/47/26/265305

Charge compensation mechanism in La-doped potassium sodium tantalate niobate ceramics

Huan Li
, Qingxing Meng
, Dewei Gong
, Qian Shi
, Zhongxiang Zhou

School of Physics

Harbin Institute of Technology

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

3 Scopus citations

Abstract

(K_0.95Na_0.05)_1-3xLa_xTa _0.60Nb_0.40O₃ ceramics (KNTN-La-x; x=0, 0.003, 0.007, and 0.01) were fabricated by the conventional solid-state method. The charge compensation mechanism was investigated by analyzing the current-voltage characteristics of the KNTN ceramics with various La doping contents. It was found that La doping induced semiconductivity in KNTN ceramics. This indicates the presence of the electronic compensation mechanism in La-doped KNTN ceramics, in addition to the well-studied ionic compensation mechanism. Further investigation revealed that the charge compensation mechanism could be altered by annealing, and that La was converted to become ionically compensated.

Original language	English
Article number	265305
Journal	Journal of Physics D: Applied Physics
Volume	47
Issue number	26
DOIs	https://doi.org/10.1088/0022-3727/47/26/265305
State	Published - 2 Jul 2014

Keywords

KNTN ceramics
La-doping
charge compensation

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10.1088/0022-3727/47/26/265305

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title = "Charge compensation mechanism in La-doped potassium sodium tantalate niobate ceramics",

abstract = "(K0.95Na0.05)1-3xLaxTa 0.60Nb0.40O3 ceramics (KNTN-La-x; x=0, 0.003, 0.007, and 0.01) were fabricated by the conventional solid-state method. The charge compensation mechanism was investigated by analyzing the current-voltage characteristics of the KNTN ceramics with various La doping contents. It was found that La doping induced semiconductivity in KNTN ceramics. This indicates the presence of the electronic compensation mechanism in La-doped KNTN ceramics, in addition to the well-studied ionic compensation mechanism. Further investigation revealed that the charge compensation mechanism could be altered by annealing, and that La was converted to become ionically compensated.",

keywords = "KNTN ceramics, La-doping, charge compensation",

author = "Huan Li and Qingxing Meng and Dewei Gong and Qian Shi and Zhongxiang Zhou",

year = "2014",

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doi = "10.1088/0022-3727/47/26/265305",

language = "英语",

volume = "47",

journal = "Journal of Physics D: Applied Physics",

issn = "0022-3727",

publisher = "Institute of Physics",

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TY - JOUR

T1 - Charge compensation mechanism in La-doped potassium sodium tantalate niobate ceramics

AU - Li, Huan

AU - Meng, Qingxing

AU - Gong, Dewei

AU - Shi, Qian

AU - Zhou, Zhongxiang

PY - 2014/7/2

Y1 - 2014/7/2

N2 - (K0.95Na0.05)1-3xLaxTa 0.60Nb0.40O3 ceramics (KNTN-La-x; x=0, 0.003, 0.007, and 0.01) were fabricated by the conventional solid-state method. The charge compensation mechanism was investigated by analyzing the current-voltage characteristics of the KNTN ceramics with various La doping contents. It was found that La doping induced semiconductivity in KNTN ceramics. This indicates the presence of the electronic compensation mechanism in La-doped KNTN ceramics, in addition to the well-studied ionic compensation mechanism. Further investigation revealed that the charge compensation mechanism could be altered by annealing, and that La was converted to become ionically compensated.

AB - (K0.95Na0.05)1-3xLaxTa 0.60Nb0.40O3 ceramics (KNTN-La-x; x=0, 0.003, 0.007, and 0.01) were fabricated by the conventional solid-state method. The charge compensation mechanism was investigated by analyzing the current-voltage characteristics of the KNTN ceramics with various La doping contents. It was found that La doping induced semiconductivity in KNTN ceramics. This indicates the presence of the electronic compensation mechanism in La-doped KNTN ceramics, in addition to the well-studied ionic compensation mechanism. Further investigation revealed that the charge compensation mechanism could be altered by annealing, and that La was converted to become ionically compensated.

KW - KNTN ceramics

KW - La-doping

KW - charge compensation

UR - https://www.scopus.com/pages/publications/84902449387

U2 - 10.1088/0022-3727/47/26/265305

DO - 10.1088/0022-3727/47/26/265305

M3 - 文章

AN - SCOPUS:84902449387

SN - 0022-3727

VL - 47

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 26

M1 - 265305

ER -

Charge compensation mechanism in La-doped potassium sodium tantalate niobate ceramics

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