Insight into electrocaloric cooling power in multilayer capacitors using infra-red camera

Compact multilayer capacitors(MLCs) have attracted strong interest as the most promising elements for the design of electrocaloric prototypes. Recent theoretical simulations have predicted thatMLCs could permit a sustained cooling power. However, direct experimental evidence is still lacking. Here, we use an infra-redcamera to characterize the cooling power of commercialMLCs by combining both spatially and temporally resolvedmeasurements. We also compare the experimental data with theoreticalmodels in order to highlight the routes for developing and optimizing the future MLC-based devices as well as themeasurement conditions andmodeling tools.

Source: Applied Physics Letters - November 22, 2016 Category: Physics Authors: Yang Liu, Herv é Strozyk, Brahim Dkhil and Emmanuel Defay Source Type: research