Fabrication and energy-storage performance of (Pb,La)(Zr,Ti)O3 antiferroelectric thick films derived from polyvinylpyrrolidone-modified chemical solution
Fabrication and energy-storage performance of (Pb,La)(Zr,Ti)O3 antiferroelectric thick films derived from polyvinylpyrrolidone-modified chemical solution
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DOI：
10.1063/1.4742128
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发表时间：
2012-08
影响因子：
3.2
通讯作者：
Ying Wang;Xihong Hao;Ji-chun Yang;Jinbao Xu;Di Zhao
中科院分区：
文献类型：
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作者：
Ying Wang;Xihong Hao;Ji-chun Yang;Jinbao Xu;Di Zhao
本文采用聚乙烯吡咯烷酮（PVP）修饰的化学溶液在LaNiO 3/Si（100）衬底上制备了Pb0.97La0.02（Zr0.98Ti0.02）O3（PLZT 2/98/2）反铁电厚膜。每个湿层首先在300 °C下干燥，然后分别在600、650或700 °C的较高温度B下热解。研究了热分解温度B对AFE薄膜微观结构和储能性能的影响。随着热解温度的升高，PLZT 2/98/2薄膜的表面结构更加均匀致密。结果表明，在较高温度下热解的AFE厚膜的介电性能、AFE特性和储能性能得到显著改善。在700 °C热解的PLZT 2/98/2薄膜中，每层的储能密度最大为58.1 J/cm ~ 3，储能效率最高为37.3%。
In this work, Pb0.97La0.02(Zr0.98Ti0.02)O3 (PLZT 2/98/2) antiferroelectric (AFE) thick films were successfully deposited on LaNiO3/Si(100) substrates by polyvinylpyrrolidone (PVP)-modified chemical solution. Each wet layer was first dried at 300 °C and then pyrolyzed at higher temperature B of 600, 650, or 700 °C, respectively. The effects of the pyrolyzed temperature B on the microstructure and the energy-storage performance of the AFE films were investigated in detail. As the increasing of the pyrolyzed temperature, the crystallized PLZT 2/98/2 films displayed a more uniform and dense surface microstructure. As a result, the dielectric properties, AFE characterization, and energy-storage performance were remarkably improved for the AFE thick films pyrolyzed at higher temperature. The maximum energy-storage density of 58.1 J/cm3 and the corresponding energy-storage efficiency of 37.3% were obtained in the PLZT 2/98/2 films pyrolyzed at 700 °C for every layer.