High Electrocaloric Effect in Lead Scandium Tantalate Thin Films with Interdigitated Electrodes.

ABSTRACT: Lead scandium tantalate, Pb(Sc,Ta)O₃, is an excellent electrocaloric material showing large temperature variations, good efficiency, and a broad operating temperature window. In form of multilayer ceramic capacitors integrated into a cooling device, the device can generate a temperature difference larger than 13 K. Here, we investigate Pb(Sc,Ta)O₃ in form of thin films prepared using the sol-gel chemical solution deposition method. We report the detailed fabrication process of high-quality films on various substrates such as c-sapphire and fused silica. The main originality of this research is the use of interdigitated top electrodes, enabling the application of very large electric fields in PST. We provide structural and electrical characterisation, as well as electr

SUBMITTER: Kovacova V 

PROVIDER: S-EPMC9185452 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature