Pholidota-Inspired Electronic Skin Possessing Terahertz-Wave Reflection-Absorption-Transmission Switchability

Area of Science:

• Materials Science
• Electromagnetics
• Bio-inspired Engineering

Background:

• Complex electromagnetic environments require materials with adaptable responses.
• Existing systems struggle with static properties and conflicting electromagnetic requirements (reflection, absorption, transmission).

Purpose of the Study:

• To design a self-adaptive electronic skin for switchable terahertz-wave electromagnetic functions.
• To overcome limitations of static materials and achieve dynamic coexistence of reflection, absorption, and transmission.

Main Methods:

• Developed a ternary architecture combining liquid metal, graphene, and iron oxide nanorods.
• Utilized strain-mediated microstructural reconfiguration for adaptive switching.
• Integrated multimodal sensing for closed-loop adaptation.

Main Results:

• Achieved four-state reversible switching of terahertz-wave properties: reflection (32.4 dB shielding), absorption (60.2 dB reflection loss), transmission (76.7%), and secondary reflection (50.8 dB shielding).
• Demonstrated multimodal sensing with resistance sensitivity and cyclic stability.
• Established a closed-loop adaptation system for precise electromagnetic function switching.

Conclusions:

• The bioinspired RATS-E-skin harmonizes perception and terahertz-wave switchability.
• This material shows significant potential for deformable armor and multifunctional wearable systems.
• Offers a pathway for advanced electromagnetic management in dynamic environments.