Continuously printable electronics have the significant advantage of being efficient for fabricating conductive polymer composites;however,the precise tailoring of the 3D hierarchical morphology of conductive nanocomp...Continuously printable electronics have the significant advantage of being efficient for fabricating conductive polymer composites;however,the precise tailoring of the 3D hierarchical morphology of conductive nanocomposites in a simple dripping step remains challenging.Here,we introduce a one-step direct printing technique to construct diverse microdome morphologies influenced by the interfacial Marangoni effect and nanoparticle interactions.Using a jet dispenser for continuous processing,we effectively fabricated a soft epidermislike e-skin containing 64 densely arrayed pressure sensing pixels with a hierarchical dome array for enhanced linearity and ultrasensitivity.The e-skin has 36 temperature-sensing pixels in the outer layer,with a shield-shaped dome that is insensitive to pressure stimuli.Our prosthetic finger inserted with the printed sensor arrays was capable of ultragentle detection and manipulation,such as stably holding a fragile biscuit,using a soft dropper to elaborately produce water droplets and harvesting soft fruits;these activities are challenging for existing high-sensitivity tactile sensors.展开更多
基金National Research Foundation of Korea,Grant/Award Numbers:RS-2024-00352352,NRF-2022R1A4A3032923South Korean Ministry of Trade,Industry and Energy,Grant/Award Number:RS-2022-00154781National Research Council of Science&Technology,Grant/Award Number:CRC230231-000。
文摘Continuously printable electronics have the significant advantage of being efficient for fabricating conductive polymer composites;however,the precise tailoring of the 3D hierarchical morphology of conductive nanocomposites in a simple dripping step remains challenging.Here,we introduce a one-step direct printing technique to construct diverse microdome morphologies influenced by the interfacial Marangoni effect and nanoparticle interactions.Using a jet dispenser for continuous processing,we effectively fabricated a soft epidermislike e-skin containing 64 densely arrayed pressure sensing pixels with a hierarchical dome array for enhanced linearity and ultrasensitivity.The e-skin has 36 temperature-sensing pixels in the outer layer,with a shield-shaped dome that is insensitive to pressure stimuli.Our prosthetic finger inserted with the printed sensor arrays was capable of ultragentle detection and manipulation,such as stably holding a fragile biscuit,using a soft dropper to elaborately produce water droplets and harvesting soft fruits;these activities are challenging for existing high-sensitivity tactile sensors.
