Thermo-electrical energy conversions in Bi0.5Na0.5TiO3-BaTiO3thin films prepared by sol-gel method

Xiu Cheng Zheng; Guangping Zheng; Zheng Lin; Zhi Yuan Jiang

doi:10.1016/j.tsf.2012.08.052

Thermo-electrical energy conversions in Bi_0.5Na_0.5TiO₃-BaTiO₃thin films prepared by sol-gel method

Xiu Cheng Zheng
, Guangping Zheng
, Zheng Lin
, Zhi Yuan Jiang

Research output: Journal article publication › Journal article › Academic research › peer-review

44 Citations (Scopus)

Abstract

Solid solution (1 - x)Bi0.5Na0.5TiO3-xBaTiO3(BNT-xBT) thin films with x = 0, 0.1, 0.9 and 1.0 are synthesized by sol-gel method. The as-prepared BNT-xBT films are crystallized into a single perovskite phase. The temperature-dependent polarizations of the thin films are measured to characterize their performances in thermo-electrical energy conversions. In BNT-0.1BT it is found that the electro-caloric refrigeration temperature change is 3.3 °C with the application of an electric field of 862 kV/cm at 46 °C. The density of electrical energy generating from a 10 °C temperature variation cycle is 0.68 J/cm3. The results demonstrate that BNT-0.1BT lead-free ferroelectrics are excellent environmental-friendly energy materials for electro-caloric refrigeration and pyroelectric energy harvesting applications near room temperature.

Original language	English
Pages (from-to)	125-128
Number of pages	4
Journal	Thin Solid Films
Volume	522
DOIs	https://doi.org/10.1016/j.tsf.2012.08.052
Publication status	Published - 1 Nov 2012

Keywords

Electro-caloric effect
Lead-free ferroelectrics
Pyroelectric properties
Sol-gel preparation
Thin films

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

More information

10.1016/j.tsf.2012.08.052

Cite this

@article{c9fa1187be16416cbbf7321da20cf5a0,

title = "Thermo-electrical energy conversions in Bi0.5Na0.5TiO3-BaTiO3thin films prepared by sol-gel method",

abstract = "Solid solution (1 - x)Bi0.5Na0.5TiO3-xBaTiO3(BNT-xBT) thin films with x = 0, 0.1, 0.9 and 1.0 are synthesized by sol-gel method. The as-prepared BNT-xBT films are crystallized into a single perovskite phase. The temperature-dependent polarizations of the thin films are measured to characterize their performances in thermo-electrical energy conversions. In BNT-0.1BT it is found that the electro-caloric refrigeration temperature change is 3.3 °C with the application of an electric field of 862 kV/cm at 46 °C. The density of electrical energy generating from a 10 °C temperature variation cycle is 0.68 J/cm3. The results demonstrate that BNT-0.1BT lead-free ferroelectrics are excellent environmental-friendly energy materials for electro-caloric refrigeration and pyroelectric energy harvesting applications near room temperature.",

keywords = "Electro-caloric effect, Lead-free ferroelectrics, Pyroelectric properties, Sol-gel preparation, Thin films",

author = "Zheng, \{Xiu Cheng\} and Guangping Zheng and Zheng Lin and Jiang, \{Zhi Yuan\}",

year = "2012",

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doi = "10.1016/j.tsf.2012.08.052",

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journal = "Thin Solid Films",

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T1 - Thermo-electrical energy conversions in Bi0.5Na0.5TiO3-BaTiO3thin films prepared by sol-gel method

AU - Zheng, Xiu Cheng

AU - Zheng, Guangping

AU - Lin, Zheng

AU - Jiang, Zhi Yuan

PY - 2012/11/1

Y1 - 2012/11/1

N2 - Solid solution (1 - x)Bi0.5Na0.5TiO3-xBaTiO3(BNT-xBT) thin films with x = 0, 0.1, 0.9 and 1.0 are synthesized by sol-gel method. The as-prepared BNT-xBT films are crystallized into a single perovskite phase. The temperature-dependent polarizations of the thin films are measured to characterize their performances in thermo-electrical energy conversions. In BNT-0.1BT it is found that the electro-caloric refrigeration temperature change is 3.3 °C with the application of an electric field of 862 kV/cm at 46 °C. The density of electrical energy generating from a 10 °C temperature variation cycle is 0.68 J/cm3. The results demonstrate that BNT-0.1BT lead-free ferroelectrics are excellent environmental-friendly energy materials for electro-caloric refrigeration and pyroelectric energy harvesting applications near room temperature.

AB - Solid solution (1 - x)Bi0.5Na0.5TiO3-xBaTiO3(BNT-xBT) thin films with x = 0, 0.1, 0.9 and 1.0 are synthesized by sol-gel method. The as-prepared BNT-xBT films are crystallized into a single perovskite phase. The temperature-dependent polarizations of the thin films are measured to characterize their performances in thermo-electrical energy conversions. In BNT-0.1BT it is found that the electro-caloric refrigeration temperature change is 3.3 °C with the application of an electric field of 862 kV/cm at 46 °C. The density of electrical energy generating from a 10 °C temperature variation cycle is 0.68 J/cm3. The results demonstrate that BNT-0.1BT lead-free ferroelectrics are excellent environmental-friendly energy materials for electro-caloric refrigeration and pyroelectric energy harvesting applications near room temperature.

KW - Electro-caloric effect

KW - Lead-free ferroelectrics

KW - Pyroelectric properties

KW - Sol-gel preparation

KW - Thin films

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DO - 10.1016/j.tsf.2012.08.052

M3 - Journal article

SN - 0040-6090

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JO - Thin Solid Films

JF - Thin Solid Films

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