Flexible conductive fibers are essential for wearable electronics and smart electronic textiles.However,in complex operating conditions,conductive fibers will inevitably fracture or damage.Herein,we have developed an ...Flexible conductive fibers are essential for wearable electronics and smart electronic textiles.However,in complex operating conditions,conductive fibers will inevitably fracture or damage.Herein,we have developed an elastic conductive self-healable fiber(C-SHF),of which the electrical and mechanical properties can efficiently heal in a wide operating range,including room temperature,underwater,and low temperature.This advantage can be owed to the combination of reversible covalent imine bond and disulfide bond,as well as the instantaneous self-healing ability of liquid metal.The C-SHF,with stretchability,conductivity stability,and universal self-healing properties,can be used as an electrical signal transmission line at high strain and under different operating conditions.Besides,C-SHF was assembled into a double-layer capacitor structure to construct a self-healable sensor,which can effectively respond to pressure as a wearable motion detector.展开更多
Stretchable electronics have attracted significant attention owing to their unique mechanical flexibility,promising performance,and wear comfort.However,the reliance on single-layer architectures restricts their integ...Stretchable electronics have attracted significant attention owing to their unique mechanical flexibility,promising performance,and wear comfort.However,the reliance on single-layer architectures restricts their integration density,and mechanical incompatibility between rigid components and soft substrates limits their service life.To address these challenges,we developed a LEGO-like modular assembly strategy for constructing multilayer three-dimensional(3D)stretchable electronics.In this approach,electronic components(ECs)and self-healing polyurethane(SPU)substrates patterned with liquid metal(LM)circuits function as the LEGO blocks.This modular assembly design simplifies fabrication and enhances the 3D integration density.In addition,the combination of liquid metal circuits and self-healing elastic substrates allows the devices to withstand diverse deformation conditions and facilitates autonomous healing after mechanical damage.Notably,the fabricated devices can undergo multiple recycling and reuse cycles.The design concept and methodology presented here propose a new approach for developing advanced flexible electronics.展开更多
文摘Flexible conductive fibers are essential for wearable electronics and smart electronic textiles.However,in complex operating conditions,conductive fibers will inevitably fracture or damage.Herein,we have developed an elastic conductive self-healable fiber(C-SHF),of which the electrical and mechanical properties can efficiently heal in a wide operating range,including room temperature,underwater,and low temperature.This advantage can be owed to the combination of reversible covalent imine bond and disulfide bond,as well as the instantaneous self-healing ability of liquid metal.The C-SHF,with stretchability,conductivity stability,and universal self-healing properties,can be used as an electrical signal transmission line at high strain and under different operating conditions.Besides,C-SHF was assembled into a double-layer capacitor structure to construct a self-healable sensor,which can effectively respond to pressure as a wearable motion detector.
基金financially supported by the Postdoctoral Fellowship Program of China Postdoctoral Science Fund (GZC20230762)the Distinguished Young Scholar Foundation of Hunan Province (2023JJ10009)the National Natural Science Foundation of China (52273289)。
文摘Stretchable electronics have attracted significant attention owing to their unique mechanical flexibility,promising performance,and wear comfort.However,the reliance on single-layer architectures restricts their integration density,and mechanical incompatibility between rigid components and soft substrates limits their service life.To address these challenges,we developed a LEGO-like modular assembly strategy for constructing multilayer three-dimensional(3D)stretchable electronics.In this approach,electronic components(ECs)and self-healing polyurethane(SPU)substrates patterned with liquid metal(LM)circuits function as the LEGO blocks.This modular assembly design simplifies fabrication and enhances the 3D integration density.In addition,the combination of liquid metal circuits and self-healing elastic substrates allows the devices to withstand diverse deformation conditions and facilitates autonomous healing after mechanical damage.Notably,the fabricated devices can undergo multiple recycling and reuse cycles.The design concept and methodology presented here propose a new approach for developing advanced flexible electronics.
