Structural and ferroelectric properties of textured KNN thick films prepared by sol-gel methods

Xiuying Yang; Zhangjie Cheng; Junye Cheng; Dawei Wang; Feng Shi; Guangping Zheng; Hongmei Liu; Deqing Zhang; Maosheng Cao

doi:10.1080/10584587.2016.1252242

Structural and ferroelectric properties of textured KNN thick films prepared by sol-gel methods

Xiuying Yang, Zhangjie Cheng, Junye Cheng, Dawei Wang, Feng Shi, Guangping Zheng, Hongmei Liu, Deqing Zhang^*, Maosheng Cao

^*Corresponding author for this work

School of Material Science and Engineering

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

8 Citations (Scopus)

Abstract

Based on the templates of sheet-like KNN powders synthesized by a hydrothermal method, lead-free textured KNN films with a thickness of 5 μm were prepared by sol-gel methods. The composition, microstructure, crystal structure, ferroelectric properties and grain growth mechanisms of the textured KNN thick films were studied. It was found that the KNN thick films possessed large grain sizes, dense morphology and increased ratio of Na⁺. After annealed at 650 °C, the perovskite structure was observed in the KNN thick films textured along the <00l> crystallography direction with an orientation factor of 0.393, reflecting a preferential growth characteristics. Furthermore, the residual polarization value of 12.3 µc/cm² was achieved under the same condition.

Original language	English
Pages (from-to)	171-178
Number of pages	8
Journal	Integrated Ferroelectrics
Volume	176
Issue number	1
DOIs	https://doi.org/10.1080/10584587.2016.1252242
Publication status	Published - 21 Nov 2016

Keywords

Sol-gel methods
sheet-like microstructure
textured KNN thick film

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10.1080/10584587.2016.1252242

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title = "Structural and ferroelectric properties of textured KNN thick films prepared by sol-gel methods",

abstract = "Based on the templates of sheet-like KNN powders synthesized by a hydrothermal method, lead-free textured KNN films with a thickness of 5 μm were prepared by sol-gel methods. The composition, microstructure, crystal structure, ferroelectric properties and grain growth mechanisms of the textured KNN thick films were studied. It was found that the KNN thick films possessed large grain sizes, dense morphology and increased ratio of Na+. After annealed at 650 °C, the perovskite structure was observed in the KNN thick films textured along the <00l> crystallography direction with an orientation factor of 0.393, reflecting a preferential growth characteristics. Furthermore, the residual polarization value of 12.3 µc/cm2 was achieved under the same condition.",

keywords = "Sol-gel methods, sheet-like microstructure, textured KNN thick film",

author = "Xiuying Yang and Zhangjie Cheng and Junye Cheng and Dawei Wang and Feng Shi and Guangping Zheng and Hongmei Liu and Deqing Zhang and Maosheng Cao",

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T1 - Structural and ferroelectric properties of textured KNN thick films prepared by sol-gel methods

AU - Yang, Xiuying

AU - Cheng, Zhangjie

AU - Cheng, Junye

AU - Wang, Dawei

AU - Shi, Feng

AU - Zheng, Guangping

AU - Liu, Hongmei

AU - Zhang, Deqing

AU - Cao, Maosheng

PY - 2016/11/21

Y1 - 2016/11/21

N2 - Based on the templates of sheet-like KNN powders synthesized by a hydrothermal method, lead-free textured KNN films with a thickness of 5 μm were prepared by sol-gel methods. The composition, microstructure, crystal structure, ferroelectric properties and grain growth mechanisms of the textured KNN thick films were studied. It was found that the KNN thick films possessed large grain sizes, dense morphology and increased ratio of Na+. After annealed at 650 °C, the perovskite structure was observed in the KNN thick films textured along the <00l> crystallography direction with an orientation factor of 0.393, reflecting a preferential growth characteristics. Furthermore, the residual polarization value of 12.3 µc/cm2 was achieved under the same condition.

AB - Based on the templates of sheet-like KNN powders synthesized by a hydrothermal method, lead-free textured KNN films with a thickness of 5 μm were prepared by sol-gel methods. The composition, microstructure, crystal structure, ferroelectric properties and grain growth mechanisms of the textured KNN thick films were studied. It was found that the KNN thick films possessed large grain sizes, dense morphology and increased ratio of Na+. After annealed at 650 °C, the perovskite structure was observed in the KNN thick films textured along the <00l> crystallography direction with an orientation factor of 0.393, reflecting a preferential growth characteristics. Furthermore, the residual polarization value of 12.3 µc/cm2 was achieved under the same condition.

KW - Sol-gel methods

KW - sheet-like microstructure

KW - textured KNN thick film

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Structural and ferroelectric properties of textured KNN thick films prepared by sol-gel methods

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Keywords

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