Journal
ADVANCED MATERIALS
Volume 34, Issue 24, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202201093
Keywords
real-time regulation; spatial evolution; thermal camouflage; thermal metasurfaces
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Funding
- National Science Foundation for Distinguished Young Scholars [52025065]
- Basic Science Center Program for Ordered Energy Conversion of the National Natural Science Foundation of China [51888103]
- Ministry of Education, Republic of Singapore [A-0005143-01-00 | R-263-000-E19-114]
- China Scholarship Council [202006280279]
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Emerging metamaterials provide an efficient strategy for unconventional heat control and management, but their thermal functions are usually fixed or limited. In this study, a self-adaptive metasurface platform is developed to achieve programmable thermal functions through the automatic evolution of thermoelectric heat sources and real-time control of voltage. This research sets up a new paradigm for arbitrary transitions between intricate thermal patterns and has the potential for real-time thermal management in a programming formation.
Emerging metamaterials have served as an efficient strategy for the realization of unconventional heat control and management using structural thermal properties, and many functional thermal metadevices have been investigated. However, thermal functions are usually fixed or limited in the switching range. Thus far, real-time thermal regulation is elusive for thermal metamaterials because of deterministic artificial metastructures and uncontrollable phase transitions, coupled with the absence of dynamic adaptability. Here, a self-adaptive metasurface platform to implement programmable thermal functions via the automatic evolution of thermoelectric heat sources and real-time control of the driven voltage is reported. The proof-of-concept smart platform experimentally demonstrates arbitrary switching between elaborate thermal patterns consolidated into an active thermoelectric element matrix. Further, thermal pixels and feedback control systems are integrated into printed circuit boards, resulting in self-adaptability to any thermal requirements. This study sets up a new paradigm for arbitrary transitions between exquisite thermal patterns and is expected to pave the way for real-time thermal management in a programming formation.
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