English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

It is highly desirable to discover an electromechanical coupling that allowsa dielectric material to generate curvature in response to a uniform electricfield, which would add a new degree of freedom for designing actuators.Flexoelectricity, a two-way coupling between polarization and strain gradient,is a good candidate. But its applications are usually limited to the nanoscaledue to its inherent size dependence. Here, an inverse flexoelectret effect insilicone elastomers is introduced to overcome this limitation. Based on thisidea, a flexing actuator which can generate large curvature at the millimeterlength scale is fabricated and shown to have excellent actuation performancecomparable with current nanoscale flexoelectric actuators. Theoretical analysisindicates that the new phenomenon originates from the interplay of electretsand Maxwell stress. This work opens an avenue for applying macroscopicflexoelectricity in actuators and flexible electronics.

Inverse flexoelectret effect: bending dielectrics by a uniform electric field