Electrical engineering team’s work makes for a ‘cool’ cover story

ADFM-24-9-Cover.inddWork by a team led by Qiming Zhang, distinguished professor of electrical engineering, was recently featured on the cover of the journal Advanced Functional Materials.

The work, “Giant Electrocaloric Response Over A Broad Temperature Range in Modified BaTiO3 Ceramics,” was published in the journal’s March 5 issue.

Zhang’s team discovered a class of ferroelectric ceramics that exhibit giant electrocaloric effect (ECE) near room temperature. ECE is the electric field induced temperature change in insulation materials which have the promise of high efficiency electric coolers with compact size for on-chip cooling as we as for air conditioning and refrigeration.

However, the very small ECE observed in the past presents the effect to be attractive for practical applications.

The cover image shows a device simulation of a flat panel chip-scale cooler, employing the ECE materials developed.

The entire paper can be view online at http://onlinelibrary.wiley.com/doi/10.1002/adfm.201302386/abstract.

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