Sol-gel synthesis of Pb-free thin-film nanomaterials for electrocaloric devices

16th Russian Youth Conference on Physics and Astronomy

物理学;天文学

Abrashova, E.V.^1 ; Kononova, I.E.^1 ; Moshnikov, V.A.^1 ; Nalimova, S.S.^1

Saint-Petersburg Electrotechnical University lETI, Pr. Popova 5, St. Petersburg

197376, Russia^1

关键词: Amorphous matrices;    Electro-caloric effects;    Electrocaloric;    Impedance spectroscopy;    Lead-Free;    Pb-free;    Sol;    Gel synthesis;    Sol-gel technique;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/572/1/012023/pdf
DOI  :  10.1088/1742-6596/572/1/012023

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

Lead-free BaxCa(1-x)TiO3, BaSnyTi(1-y)O3and composite BaxCa(1-x)TiO3/ BaSnyTi(1-y)O3thin films were synthesized by a sol-gel technique. A large electrocaloric effect is expected in the obtained films. Atomic force microscopy studies revealed that the thin films consists of ellipsoidal objects enclosed by an amorphous matrix. The electrical properties of synthesized nanomaterials were investigated by impedance spectroscopy.