Abstract
Dynamic thermal emitters based on thermally triggered modes exhibit the unique superiority of adaptive responsiveness and zero-power operation, whereas they are accompanied by either low emission tunability or lack of customizability due to the limitations of single-actuation mechanism. We herein present a novel co-actuation strategy, which is based on the coupling of thermochromism and thermal deformation in a manganite perovskite-based resonator, to synergistically modulate thermal emission. Dynamic thermal emitter based on the co-actuation strategy exhibits a remarkably tunable emittance contrast of 0.61 within the full-wave infrared (FWIR: 2.5-25μm) region and a customizable transition at room temperature of 293 K. Only optimizing the thickness of manganite, the resonator can be developed as an adaptive camouflage device, a spectral selective absorber, or a thermal management device. Moreover, our design imparts the brittle manganite ceramics with excellent mechanical flexibility, making the resonator facile for integrating with the flat or curved configurations. The proposed strategy may enable a versatile manganite perovskite-based platform for the thermal science community.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.