Ionogels,a newly emerging type of gel material,are considered the most attractive candidate for constructing the next-generation ionotronic devices in the Internet of Things era.However,building robust and sustainable...Ionogels,a newly emerging type of gel material,are considered the most attractive candidate for constructing the next-generation ionotronic devices in the Internet of Things era.However,building robust and sustainable ionogels toward high-performance ionotronic devices in broad scenarios remains a huge challenge.Herein,a mechanically robust cellulose ionogel(RCI)via the facile“catalyst-free”yet chemically cross-linked engineering of cellulose molecules was de-veloped.More specifically,ionic liquid,a typical cellulose solvent,and an ion-conductive com-ponent of cellulose ionogel were employed to afford the proton and replace the conventional,additional chemical catalyst,which indeed triggers the chemical reactions between cellulose and glutaraldehyde molecules,and thus creates the chemical-bonded,robust cellulose network of RCI.The prepared RCI(0.4 g glutaraldehyde to 0.6 g cellulose)demonstrated surprisingly high strength of∼11 MPa with 1000%improvement and toughness of 2.8 MJ/m^(3) with 700%increase compared to the original cellulose ionogel(CI),as well as acceptable conductivity of 29.1 ms/cm,surpassing most ionogel materials.Such RCI easily constructed versatile ionotronic devices with unexpected voltage-pressure sensitivity,wide-range loading,and linear and steady-state output for self-powered,body motion,human health,and Morse-code information communication appli-cations.The catalyst-free engineering paves the way toward easy-to-prepare,robust,and promis-ing ionogels in our sustainable society,beyond the cellulose material.展开更多
Flexible ionotronic devices have great potential to revolutionize epidermal electronics.However,the lack of breathability in most ionotronic devices is a significance barrier to practical application.Herein,a breathab...Flexible ionotronic devices have great potential to revolutionize epidermal electronics.However,the lack of breathability in most ionotronic devices is a significance barrier to practical application.Herein,a breathable kirigami-shaped ionotronic e-textile with two functions of sensing(touch and strain)is designed,by integrating silk fabric and kirigami-shaped ionic hydrogel.The kirigami-shaped ionic hydrogel,combined with fluffy silk fabric,allows the ionotronic e-textile to achieve excellent breathability and comfortability.Furthermore,the fabricated ionotronic e-textile can precisely perform the function of touch sensing and strain perception.For touch-sensing,the ionotronic e-textile can detect the position of finger touching point with a fast response time(3 ms)based on the interruption of the ion field.For strain sensing,large workable strain range(>100%),inconspicuous drift(<0.78%)and long-term stability(>10,000 cycles)is demonstrated.On the proof of concept,a fabric keyboard and game controlling sleeve have been designed to display touch and strain sensing functions.The ionotronic e-textile break through the bottlenecks of traditional wearable ionotronic devices,suggesting a great promising application in future wearable epidermal electronics.展开更多
Hardware based neuromorphic sensory system has attracted great attention for cognitive interactive platform.Auditory perception system can capture and analyze various sound signals,helping us to detect dangerous surro...Hardware based neuromorphic sensory system has attracted great attention for cognitive interactive platform.Auditory perception system can capture and analyze various sound signals,helping us to detect dangerous surroundings and judge environmental conditions.Therefore,developing neuromorphic auditory system that can decode auditory spatiotemporal information would be interesting.Here,an artificial auditory perceptual system is proposed by integrating sound frequency sensitive triboelectric nanogenerators(SFS-TENGs)and oxide based ionotronic neuromorphic transistor.With perforated configuration,the SFS-TENG adopting polyetheretherketone membrane and polytetrafluoroethylene membrane as friction layers can convert sound wave signals into electrical signals,exhibiting a high sensitivity of~2.24 V/dB and good durability.The neuromorphic transistor can further process electrical signals generated by SFS-TENG.Thus,the system can mimic auditory perception,exhibiting a wide range of sound pressure and frequency recognition capabilities.Information encryption/decryption and Doppler frequency shift temporal information processing are demonstrated on the TENG based auditory system for the first time.The present auditory perceptual system demonstrates broad application prospects,providing new opportunities to create sophisticated,adaptable,and interactive systems.展开更多
INTRODUCTION The integration of soft ion-conducting materials into the fabrication of electronic devices has enabled the development of entirely new classes of soft devices,namely,ionotronics.These ionotronic devices ...INTRODUCTION The integration of soft ion-conducting materials into the fabrication of electronic devices has enabled the development of entirely new classes of soft devices,namely,ionotronics.These ionotronic devices are characterized by high deform-ability,transparency,and biocompatibility1,2-features not easily accessible with conventional electronic devices.Demon-strated examples include ionic logic circuits,3−6 artificial skin,7,8 light-emitting devices,9,10 biomimicking power generators,11 wearable devices,12,13 and soft actuators.展开更多
基金supported by the National Natural Science Foundation of China(no.32271976,no 32371978,and no 32401680)Fujian Province Natural Science Foundation for Distinguished Young Scholars(no.2024J010020)Scientific and technological innovation funding of Fujian Agriculture and Forestry University(no.KFB23145).
文摘Ionogels,a newly emerging type of gel material,are considered the most attractive candidate for constructing the next-generation ionotronic devices in the Internet of Things era.However,building robust and sustainable ionogels toward high-performance ionotronic devices in broad scenarios remains a huge challenge.Herein,a mechanically robust cellulose ionogel(RCI)via the facile“catalyst-free”yet chemically cross-linked engineering of cellulose molecules was de-veloped.More specifically,ionic liquid,a typical cellulose solvent,and an ion-conductive com-ponent of cellulose ionogel were employed to afford the proton and replace the conventional,additional chemical catalyst,which indeed triggers the chemical reactions between cellulose and glutaraldehyde molecules,and thus creates the chemical-bonded,robust cellulose network of RCI.The prepared RCI(0.4 g glutaraldehyde to 0.6 g cellulose)demonstrated surprisingly high strength of∼11 MPa with 1000%improvement and toughness of 2.8 MJ/m^(3) with 700%increase compared to the original cellulose ionogel(CI),as well as acceptable conductivity of 29.1 ms/cm,surpassing most ionogel materials.Such RCI easily constructed versatile ionotronic devices with unexpected voltage-pressure sensitivity,wide-range loading,and linear and steady-state output for self-powered,body motion,human health,and Morse-code information communication appli-cations.The catalyst-free engineering paves the way toward easy-to-prepare,robust,and promis-ing ionogels in our sustainable society,beyond the cellulose material.
基金This work was supported by the Shandong Province Key Research and Development Plan(2019JZZY010335,2019JZZY010340)Anhui Province Special Science and Technology Project(201903a05020028)Shandong Provincial Universities Youth Innovation Technology Plan Team(2020KJA013).
文摘Flexible ionotronic devices have great potential to revolutionize epidermal electronics.However,the lack of breathability in most ionotronic devices is a significance barrier to practical application.Herein,a breathable kirigami-shaped ionotronic e-textile with two functions of sensing(touch and strain)is designed,by integrating silk fabric and kirigami-shaped ionic hydrogel.The kirigami-shaped ionic hydrogel,combined with fluffy silk fabric,allows the ionotronic e-textile to achieve excellent breathability and comfortability.Furthermore,the fabricated ionotronic e-textile can precisely perform the function of touch sensing and strain perception.For touch-sensing,the ionotronic e-textile can detect the position of finger touching point with a fast response time(3 ms)based on the interruption of the ion field.For strain sensing,large workable strain range(>100%),inconspicuous drift(<0.78%)and long-term stability(>10,000 cycles)is demonstrated.On the proof of concept,a fabric keyboard and game controlling sleeve have been designed to display touch and strain sensing functions.The ionotronic e-textile break through the bottlenecks of traditional wearable ionotronic devices,suggesting a great promising application in future wearable epidermal electronics.
基金granted by the National Natural Science Foundation of China(No.U22A2075)Ningbo Key Scientific and Technological Project(No.2021Z116).
文摘Hardware based neuromorphic sensory system has attracted great attention for cognitive interactive platform.Auditory perception system can capture and analyze various sound signals,helping us to detect dangerous surroundings and judge environmental conditions.Therefore,developing neuromorphic auditory system that can decode auditory spatiotemporal information would be interesting.Here,an artificial auditory perceptual system is proposed by integrating sound frequency sensitive triboelectric nanogenerators(SFS-TENGs)and oxide based ionotronic neuromorphic transistor.With perforated configuration,the SFS-TENG adopting polyetheretherketone membrane and polytetrafluoroethylene membrane as friction layers can convert sound wave signals into electrical signals,exhibiting a high sensitivity of~2.24 V/dB and good durability.The neuromorphic transistor can further process electrical signals generated by SFS-TENG.Thus,the system can mimic auditory perception,exhibiting a wide range of sound pressure and frequency recognition capabilities.Information encryption/decryption and Doppler frequency shift temporal information processing are demonstrated on the TENG based auditory system for the first time.The present auditory perceptual system demonstrates broad application prospects,providing new opportunities to create sophisticated,adaptable,and interactive systems.
基金supported by the National Research Foundation of Korea(NRF-2022R1C1C1013490)Korea Environment Industry&Technology Institute(KEITI)through Center of Plasma Process for Organic Material Recycling Program,funded by Korea Ministry of Environment(MOE)(ARQ202209003002)。
文摘INTRODUCTION The integration of soft ion-conducting materials into the fabrication of electronic devices has enabled the development of entirely new classes of soft devices,namely,ionotronics.These ionotronic devices are characterized by high deform-ability,transparency,and biocompatibility1,2-features not easily accessible with conventional electronic devices.Demon-strated examples include ionic logic circuits,3−6 artificial skin,7,8 light-emitting devices,9,10 biomimicking power generators,11 wearable devices,12,13 and soft actuators.
