Transparency‐Photothermal Efficiency Coordinated Dual‐Invisible Soft Robots
Abstract
ABSTRACT Soft robots capable of seamless environmental integration and unobtrusive operation are essential for covert monitoring, camouflage, and preserving optical integrity. Near‐infrared (NIR) photo‐actuation offers an ideal route for invisible control; however, it is traditionally governed by a fundamental trade‐off where strong photo‐responses necessitate dark materials and high filler loadings that compromise transparency. Here, we report a system achieving spectral decoupling of visible transparency and photothermal responsiveness through interfacial engineering of two‐dimensional atomically thin CuS (AT–CuS) nanosheets to form a stable monolayer dispersion in the polymer matrix. Such material reaches a record‐breaking photothermal efficiency of 96.3% in the NIR‐II window. At an ultralow loading of 0.01 wt % At‐CuS, the composite maintains over 80% visible‐light transmittance while exhibiting rapid NIR responses (>130°C within 2 s). We further demonstrate “dual‐invisible” soft robots with imperceptible bodies and hidden NIR control, where the body and the NIR control signal remain imperceptible, performing agile amphibious locomotion.
Article Details
Authors (6)
Mengyao Su
Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
Shenggui Liu
Pen‐Tung Sah Institute of Micro‐Nano Science and Technology Xiamen University Xiamen China
Naiqing Li
State Key Laboratory of Environment Characteristics and Effects for Near‐space, Beijing Key Laboratory of Intelligent Molecular Materials and High‐throughput Manufacturing, MOE Key Laboratory of Cluster Science, MIIT Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing China
Akang Chen
MOE Key Laboratory of Cluster Science, MIIT Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering
Yahe Wu
Jiatao Zhang
MOE Key Laboratory of Cluster Science, MIIT Key Laboratory of Medical Molecule Science and Pharmaceutical Engineering, School of Chemistry and Chemical Engineering, School of Materials Science & Engineering