低煅烧温度下K0.5Na0.5NbO3铁电陶瓷的光感应

IF 1.3 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Ferroelectrics Letters Section Pub Date : 2021-11-01 DOI:10.1080/07315171.2021.1971012

Shammi Kumar, Mamta Shandilya, N. Thakur

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引用次数: 5

摘要

摘要采用溶胶-凝胶法制备了K0.5Na0.5NbO3陶瓷。用x射线衍射仪、FESEM和FTIR光谱仪研究了陶瓷的结构特性。用紫外可见光谱和PL谱仪研究了陶瓷的电光性能。研究了陶瓷在不同频率和温度下的介电性质，发现陶瓷在500 KHz时介电常数最大。交流电导率分析显示电阻行为为负温度系数。对180 V以下的泄漏电流进行了研究，结果表明室温下的泄漏电流值较低。在50 Hz的不同电场(5-20 kVcm−1)下分析铁电性质。

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Optical induction in K0.5Na0.5NbO3 ferroelectric ceramic at low calcination temperature by sol-gel route

Abstract K0.5Na0.5NbO3 ceramic was synthesized at low calcination temperature by sol-gel route. Structural properties of ceramic were investigated by X-ray diffractometer, FESEM and FTIR spectrometer. Electro-optical properties of ceramic were investigated by UV-Vis and PL spectrometer. Dielectric nature of ceramic was studied at different frequencies and temperatures which disclosed that ceramic has maximum dielectric permittivity at 500 KHz. AC conductivity analysis shows negative temperature coefficient of resistance behavior. Leakage current was studied up to 180 V which shows low value of leakage current at room temperature. Ferroelectric nature was analyzed at different electric fields (5–20 kVcm−1) at 50 Hz.

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来源期刊

Ferroelectrics Letters Section 物理-物理：凝聚态物理

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

4.8 months

期刊介绍： Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.