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学者姓名:邵金友

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Microtemplated Electrowetting for Fabrication of Shape-Controllable Microdomes in Extruded Microsucker Arrays toward Octopus-Inspired Dry/Wet Adhesion EI SCIE Scopus
期刊论文 | 2022 | ADVANCED FUNCTIONAL MATERIALS
SCOPUS Cited Count: 4
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Abstract :

Inspired by the prominent adhesion ability of octopus suckers, many dry/wet adhesives with specific micro-structure have been fabricated for applications in smart robots, manipulators, and medical treatments. However, the reported octopus-inspired adhesive patches are either suction-assistant without tight-sealing, or suction-sealed but inefficient under both dry/wet environments. Here, a microtemplated electrowetting method is developed for the fabrication of reversible dry/wet adhesive pads consisting of extruded microsuckers with suction-enhanced microdomes and sealing-ring tips. The mechanism toward the morphology regulation of microdomes illustrates the uneven electrohydrodynamic force on the liquid-air interface that changes the liquid meniscus and achieves the precise regulation of the microdomes curvature ratio (from 0.45 to 0.74). The tip spacing can be controlled (from 0 to 50 mu m) by using different templates. Theoretical and experimental insights into the mechanism of the microdomes morphology and the tip spacing on adhesion are discussed. With optimized microdomes and maximized sealing-tips, this adhesive patch generates strong and repeatable adhesion on a silicon wafer in both air (approximate to 86 kPa) and underwater (approximate to 61 kPa) environments. Besides, considerable adhesion to the rough surfaces are also revealed. Its adhesion ability is demonstrated with stable transportation of various objects under air/underwater environments, providing a potential application in cross-media operation.

Keyword :

bionics dry microstructures microtemplated-electrowetting wet adhesives

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GB/T 7714 Wu, Yihang , Li, Xiangming , Tian, Hongmiao et al. Microtemplated Electrowetting for Fabrication of Shape-Controllable Microdomes in Extruded Microsucker Arrays toward Octopus-Inspired Dry/Wet Adhesion [J]. | ADVANCED FUNCTIONAL MATERIALS , 2022 .
MLA Wu, Yihang et al. "Microtemplated Electrowetting for Fabrication of Shape-Controllable Microdomes in Extruded Microsucker Arrays toward Octopus-Inspired Dry/Wet Adhesion" . | ADVANCED FUNCTIONAL MATERIALS (2022) .
APA Wu, Yihang , Li, Xiangming , Tian, Hongmiao , Wang, Duorui , Zhang, Jinyu , Wang, Liang et al. Microtemplated Electrowetting for Fabrication of Shape-Controllable Microdomes in Extruded Microsucker Arrays toward Octopus-Inspired Dry/Wet Adhesion . | ADVANCED FUNCTIONAL MATERIALS , 2022 .
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Wafer-Scale and Cost-Effective Manufacturing of Controllable Nanogap Arrays for Highly Sensitive SERS Sensing SCIE Scopus
期刊论文 | 2022 , 14 (2) , 3580-3590 | ACS APPLIED MATERIALS & INTERFACES
WoS CC Cited Count: 2 SCOPUS Cited Count: 16
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Abstract :

The metallic nanogap has been proved as an efficient architecture for surface- enhanced Raman scattering (SERS) applications. Although a lot of nanogap fabrication methods have been proposed in the last few decades, the economical and high-yield manufacturing of sub-10 nm gaps remains a challenge. Here, we present a convenient and cost-effective fabrication method for wafer-scale patterning of metallic nanogaps, which simply combines photolithographic metal patterning, swelling-induced nanocracking, and superimposition metal sputtering without requiring expensive nanofabrication equipment. By controlling the swelling time and metal deposition thickness, the gap size can be precisely defined, down to the sub-10 nm scale. Furthermore, we demonstrate that the fabricated nanogap array can be used as an excellent SERS substrate for molecule measurements and shows a high Raman enhancement factor of similar to 10(8) and a high sensitivity for the detection of rhodamine 6G (R6G) molecules, even down to 10(-14) M, indicating an extraordinary capability for single-molecule detection. Due to its high controllability and wafer-scale fabrication capability, this nanogap fabrication method offers a promising route for highly sensitive and economical SERS detections.

Keyword :

nanogap SERS superimposition metal sputtering surface plasmon wave swelling-induced nanocracking

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GB/T 7714 Zhao, Qiang , Yang, Huan , Nie, Bangbang et al. Wafer-Scale and Cost-Effective Manufacturing of Controllable Nanogap Arrays for Highly Sensitive SERS Sensing [J]. | ACS APPLIED MATERIALS & INTERFACES , 2022 , 14 (2) : 3580-3590 .
MLA Zhao, Qiang et al. "Wafer-Scale and Cost-Effective Manufacturing of Controllable Nanogap Arrays for Highly Sensitive SERS Sensing" . | ACS APPLIED MATERIALS & INTERFACES 14 . 2 (2022) : 3580-3590 .
APA Zhao, Qiang , Yang, Huan , Nie, Bangbang , Luo, Yongsong , Shao, Jinyou , Li, Gang . Wafer-Scale and Cost-Effective Manufacturing of Controllable Nanogap Arrays for Highly Sensitive SERS Sensing . | ACS APPLIED MATERIALS & INTERFACES , 2022 , 14 (2) , 3580-3590 .
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Heterogeneous Strain Distribution Based Programmable Gated Microchannel for Ultrasensitive and Stable Strain Sensing EI SCIE Scopus
期刊论文 | 2022 | ADVANCED MATERIALS
SCOPUS Cited Count: 14
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Abstract :

Developing highly sensitive strain sensors requires conduction pathways capable of rapidly switching between disconnection and reconnection in response to strain. Ion channels in living organisms exactly control the channel switch through protein-composed gates, achieving changeable ion currents. Herein, inspired by the gating characteristics of the ion channels, a programmable fluidic strain sensor enhanced by gating ion pathways through heterogeneous strain distribution of discrete micropillars is proposed. During stretching, the contraction and closure of the widthwise gaps between discrete micropillars greatly weaken or even nearly cut off the conduction pathway, resulting in orders of magnitude increase in resistance and thus ultrahigh sensitivity. By adjusting the combination form and structural parameters of the discrete micropillars in the fluidic channel, the sensitivity and strain range can be customized. Thus, a gauge factor of up to 45 300 and a stretch range of 590% are obtained. Benefiting from the fluidic gating mechanism, no mechanical mismatch can be observed at the interface, breaking through the sensing stability issue of flexible sensors. The proposed sensor can be used to detect the full range of human motion, and integrated into a data glove to achieve human-machine interaction.

Keyword :

bioinspiration fluids gated microchannels high sensitivity strain sensing

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GB/T 7714 Luo, Yongsong , Chen, Xiaoliang , Li, Xiangming et al. Heterogeneous Strain Distribution Based Programmable Gated Microchannel for Ultrasensitive and Stable Strain Sensing [J]. | ADVANCED MATERIALS , 2022 .
MLA Luo, Yongsong et al. "Heterogeneous Strain Distribution Based Programmable Gated Microchannel for Ultrasensitive and Stable Strain Sensing" . | ADVANCED MATERIALS (2022) .
APA Luo, Yongsong , Chen, Xiaoliang , Li, Xiangming , Tian, Hongmiao , Li, Sheng , Wang, Liang et al. Heterogeneous Strain Distribution Based Programmable Gated Microchannel for Ultrasensitive and Stable Strain Sensing . | ADVANCED MATERIALS , 2022 .
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Gecko-Inspired Slant Hierarchical Microstructure-Based Ultrasensitive Iontronic Pressure Sensor for Intelligent Interaction SCIE Scopus
期刊论文 | 2022 , 2022 | RESEARCH
WoS CC Cited Count: 2 SCOPUS Cited Count: 21
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Abstract :

Highly sensitive flexible pressure sensors play an important role to ensure the safety and friendliness during the human-robot interaction process. Microengineering the active layer has been shown to improve performance of pressure sensors. However, the current structural strategy almost relying on axial compression deformation suffers structural stiffening, and together with the limited area growth efficiency of conformal interface, essentially limiting the maximum sensitivity. Here, inspired by the interface contact behavior of gecko's feet, we design a slant hierarchical microstructure to act as an electrode contacting with an ionic gel layer, fundamentally eliminating the pressure resistance and maximizing functional interface expansion to achieving ultrasensitive sensitivity. Such a structuring strategy dramatically improves the relative capacitance change both in the low- and high-pressure region, thereby boosting the sensitivity up to 36000 kPa(-1) and effective measurement range up to 300 kPa. To verify the advantages of high sensitivity, the sensor is integrated with a soft magnetic robot to demonstrate a biomimetic Venus flytrap. The ability to perceive weak stimuli allows the sensor to be used as a sensory and feedback window, realizing the capture of small live insects and the transportation of fragile objects.

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GB/T 7714 Luo, Yongsong , Chen, Xiaoliang , Tian, Hongmiao et al. Gecko-Inspired Slant Hierarchical Microstructure-Based Ultrasensitive Iontronic Pressure Sensor for Intelligent Interaction [J]. | RESEARCH , 2022 , 2022 .
MLA Luo, Yongsong et al. "Gecko-Inspired Slant Hierarchical Microstructure-Based Ultrasensitive Iontronic Pressure Sensor for Intelligent Interaction" . | RESEARCH 2022 (2022) .
APA Luo, Yongsong , Chen, Xiaoliang , Tian, Hongmiao , Li, Xiangming , Lu, Yangtianyu , Liu, Yang et al. Gecko-Inspired Slant Hierarchical Microstructure-Based Ultrasensitive Iontronic Pressure Sensor for Intelligent Interaction . | RESEARCH , 2022 , 2022 .
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Compact 3D Metal Collectors Enabled by Roll-to-Roll Nanoimprinting for Improving Capacitive Energy Storage EI SCIE Scopus
期刊论文 | 2022 , 6 (4) | SMALL METHODS
SCOPUS Cited Count: 6
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Abstract :

Reducing the contact resistance between active materials and current collectors is of engineering importance for improving capacitive energy storage. 3D current collectors have shown extraordinary promise for reducing the contact resistance, however, there is a major obstacle of being bulky or inefficient fabrication before they become viable in practice. Here a roll-to-roll nanoimprinting method is demonstrated to deform flat aluminum foils into 3D current collectors with hierarchical microstructures by combining soft matter-enhanced plastic deformation and template-confined local surface nanocracks. The generated 3D current collectors are inserted by and interlocked with active electrode materials such as activated carbon, decreasing the contact resistance by at least one order of magnitude and quadrupling the specific capacitance at high current density of 30 A g(-1) for commercial-level mass loading of 5 mg cm(-2) . The 3D current collectors are so compact that they have a low volume percentage of 7.8% in the entire electrode film, resulting in energy and power density of 29.1 Wh L-1 and 12.8 kW L-1, respectively, for stack cells in organic electrolyte. Furthermore, roll-to-roll nanoimprinting of metal microstructures is low-cost, high-throughput, and can be extended to other systems that involve the microstructured metal interface, such as batteries and thermal management.

Keyword :

3D current collectors contact resistance metal microstructures nanoimprinting supercapacitors

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GB/T 7714 Zheng, Qinwen , Li, Xiangming , Yang, Qingzhen et al. Compact 3D Metal Collectors Enabled by Roll-to-Roll Nanoimprinting for Improving Capacitive Energy Storage [J]. | SMALL METHODS , 2022 , 6 (4) .
MLA Zheng, Qinwen et al. "Compact 3D Metal Collectors Enabled by Roll-to-Roll Nanoimprinting for Improving Capacitive Energy Storage" . | SMALL METHODS 6 . 4 (2022) .
APA Zheng, Qinwen , Li, Xiangming , Yang, Qingzhen , Li, Congming , Wu, Lifeng , Wang, Yingche et al. Compact 3D Metal Collectors Enabled by Roll-to-Roll Nanoimprinting for Improving Capacitive Energy Storage . | SMALL METHODS , 2022 , 6 (4) .
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Flexible, Equipment-Wearable Piezoelectric Sensor With Piezoelectricity Calibration Enabled by In-Situ Temperature Self-Sensing EI SCIE Scopus
期刊论文 | 2022 , 69 (6) , 6381-6390 | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
WoS CC Cited Count: 2 SCOPUS Cited Count: 17
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Abstract :

Flexible piezoelectric sensors have attracted much attention due to good dynamic response, high sensitivity, and self-powered sensing advantages. However, piezoelectric outputs are usually affected by temperature variation, thus limit their applications on industrial intelligent equipment. Here, a new flexible piezoelectric sensor with in situ temperature sensing and piezoelectricity calibration function is developed. The sensor can calibrate the piezoelectric output based on temperature to achieve high-accuracy sensing capability. It consists of a flexible polyimide substrate, S-shaped platinum interdigital electrodes and aligned piezoelectric fibers. The designed S-type electrode with thermosensitive effect measures the temperature in-situ, and then the piezoelectric strain output from P(VDF-TrFE) fibers is calibrated according to the temperature. The temperature sensor has a high sensitivity of 19.2 Omega/degrees C with good linearity, and keeps good accuracy under bending deformation. When the working temperature range is 25 degrees C-60 degrees C, the sensor has a good piezoelectricity calibration effect, so that it maintains a stable sensitivity of 244 mV/mu epsilon without being affected by temperature. Furthermore, this article systematically studied the influence of temperature on piezoelectric output, and established a calibration method to improve the accuracy of piezoelectric output under temperature changes. Finally, the flexible integrated sensor was conformally attached on the bearing surface to in situ sensing temperature and micro-strain. The structural design and piezoelectricity calibration method can promote the application of flexible piezoelectric sensors in the industrial field.

Keyword :

Equipment wearable flexible piezoelectric sensors flexible temperature sensors piezoelectricity calibration

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GB/T 7714 Liu, Guifang , Chen, Xiaoliang , Li, Xiangming et al. Flexible, Equipment-Wearable Piezoelectric Sensor With Piezoelectricity Calibration Enabled by In-Situ Temperature Self-Sensing [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2022 , 69 (6) : 6381-6390 .
MLA Liu, Guifang et al. "Flexible, Equipment-Wearable Piezoelectric Sensor With Piezoelectricity Calibration Enabled by In-Situ Temperature Self-Sensing" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 69 . 6 (2022) : 6381-6390 .
APA Liu, Guifang , Chen, Xiaoliang , Li, Xiangming , Wang, Chunhui , Tian, Hongmiao , Chen, Xiaoming et al. Flexible, Equipment-Wearable Piezoelectric Sensor With Piezoelectricity Calibration Enabled by In-Situ Temperature Self-Sensing . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2022 , 69 (6) , 6381-6390 .
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Channel-Crack-Designed Suspended Sensing Membrane as a Fully Flexible Vibration Sensor with High Sensitivity and Dynamic Range EI SCIE PubMed
期刊论文 | 2021 , 13 (29) , 34637-34647 | ACS APPLIED MATERIALS & INTERFACES
WoS CC Cited Count: 3
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Abstract :

Vibration sensors are essential for signal acquisition, motion measuring, and structural health evaluations in civil and industrial applications. However, the mechanical brittleness and complicated installation process of micro-electromechanical system vibration sensors block their applications in wearable devices and human-machine interaction. The development of flexible vibration sensors satisfying the requirements of good flexibility, high sensitivity, and the ability to attach conformably on curved critical components is highly demanded but still remains a challenge. Here, we demonstrate a highly sensitive and fully flexible vibration sensor with a channel-crack-designed suspended sensing membrane for high dynamic vibration and acceleration monitoring. The flexible sensor is designed as a suspended vibration membrane structure by bonding a channel-crack-sensing membrane on a cavity substrate, of which the suspended sensing membrane can freely vibrate out of plane under external vibration. By inducing the cracks to be generated in the embedded multiwalled carbon nanotube channels and fully cracked across the conducting routes, the suspended vibration membrane shows high sensitivity, good reproducibility, and robust sensing stability. The resultant vibration sensor demonstrates an ultrawide frequency vibration response range from 0.1 to 20,000 Hz and exhibits the ability to respond to acceleration vibration with a broad response of 0.24-100 m/s(2). The high sensitivity, wide bandwidth, and fully flexible format of the vibration sensor enable it to be directly attached on human bodies and curvilinear surfaces to conduct in situ vibration sensing, which was demonstrated by motion detection, voice identification, and the vibration monitoring of mechanical equipment.

Keyword :

acceleration monitoring cracks flexible sensor strain sensor suspended membrane vibration sensor

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GB/T 7714 Chen, Xiaoliang , Zeng, Qian , Shao, Jinyou et al. Channel-Crack-Designed Suspended Sensing Membrane as a Fully Flexible Vibration Sensor with High Sensitivity and Dynamic Range [J]. | ACS APPLIED MATERIALS & INTERFACES , 2021 , 13 (29) : 34637-34647 .
MLA Chen, Xiaoliang et al. "Channel-Crack-Designed Suspended Sensing Membrane as a Fully Flexible Vibration Sensor with High Sensitivity and Dynamic Range" . | ACS APPLIED MATERIALS & INTERFACES 13 . 29 (2021) : 34637-34647 .
APA Chen, Xiaoliang , Zeng, Qian , Shao, Jinyou , Li, Sheng , Li, Xiangming , Tian, Hongmiao et al. Channel-Crack-Designed Suspended Sensing Membrane as a Fully Flexible Vibration Sensor with High Sensitivity and Dynamic Range . | ACS APPLIED MATERIALS & INTERFACES , 2021 , 13 (29) , 34637-34647 .
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Self-healing and stretchable conductor based on embedded liquid metal patterns within imprintable dynamic covalent elastomer SCIE Scopus
期刊论文 | 2021 , 10 (3) , 1039-1047 | JOURNAL OF MATERIALS CHEMISTRY C
WoS CC Cited Count: 1 SCOPUS Cited Count: 28
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Abstract :

Flexible and stretchable conductors are critical elements for constructing soft electronic systems and have recently attracted tremendous attention. Next generation electronic devices call for self-healing conductors that can mimic the damage repairing ability of natural skins to achieve good reliability and sustainability. Herein, we report a self-healing, robustly conductive, and stretchable conductor enabled by embedding liquid metal (LM) patterns within an imprintable self-healing elastomer. A self-healing poly(dimethylsiloxane)/multiwalled carbon nanotube (PDMS/MWCNT) elastomer was designed by incorporating reversible imine bonds to act as self-healing points and MWCNTs as reinforcement, which featured high stretchability (500%), good elastic recovery and room temperature self-healing ability (94.3% efficiency). Taking advantage of the good imprintability of the self-healing elastomer, a structure confined filling strategy combining nanoimprinting with printing technology was proposed to fabricate embedded LM circuits with a controlled line width in a variety of geometric patterns. The resultant LM embedded structures not only offer a reliable interface to achieve robust conductivity that can resist scraping and peeling, but also provide channels for the fluidic LM to flow and automatically merge together to reestablish conductive pathways. Good healing of mechanical and electrical properties is achieved simultaneously by taking advantage of the dynamic reconstruction of the self-healing substrate and fluidity of the LM. Finally, a fully stretchable and self-healing capacitive strain sensor was demonstrated, showing potential applications in self-healing electronic skin.

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GB/T 7714 Chen, Xiaoliang , Sun, Peng , Tian, Hongmiao et al. Self-healing and stretchable conductor based on embedded liquid metal patterns within imprintable dynamic covalent elastomer [J]. | JOURNAL OF MATERIALS CHEMISTRY C , 2021 , 10 (3) : 1039-1047 .
MLA Chen, Xiaoliang et al. "Self-healing and stretchable conductor based on embedded liquid metal patterns within imprintable dynamic covalent elastomer" . | JOURNAL OF MATERIALS CHEMISTRY C 10 . 3 (2021) : 1039-1047 .
APA Chen, Xiaoliang , Sun, Peng , Tian, Hongmiao , Li, Xiangming , Wang, Chunhui , Duan, Jiankang et al. Self-healing and stretchable conductor based on embedded liquid metal patterns within imprintable dynamic covalent elastomer . | JOURNAL OF MATERIALS CHEMISTRY C , 2021 , 10 (3) , 1039-1047 .
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Nanoimprinting metal-containing nanoparticle-doped gratings to enhance the polarization of light-emitting chips by induced scattering EI SCIE PubMed
期刊论文 | 2021 , 32 (23) | NANOTECHNOLOGY
WoS CC Cited Count: 2
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Abstract :

Polarized radiative luminous semiconductor chips have huge application potential in many highly value-added fields. The integration of a subwavelength grating is recognized to be the most promising method for the development of polarized chips, but still faces the challenge of low polarized radiative performance. This paper describes a proposal for, and the development of, a scattering-induced enhanced-polarization light-emitting diode chip by directly nanoimprinting a metal-containing nanoparticle-doped grating onto the top surface of a common flip chip. The rate at which quantum-well light emission is used by the developed polarized chip is improved by more than 30%. More attractively, the doped scattering nanoparticles function as a scattering-induced polarization state converter that is sandwiched in between the top aluminum grating and the bottom silver reflector of the chips. The originally non-radiated light, with an electric-field vector parallel to the grating lines, is reflected back and forth inside the sandwich until it changes to the perpendicular vibration mode and is radiated outside the chip. Therefore, the polarization extinction ratio is greatly improved, compared to undoped samples.

Keyword :

light-emitting chips nanoimprint polarization conversion scattering subwavelength grating

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GB/T 7714 Wang, Chunhui , Lai, Dengshui , Fan, Yu et al. Nanoimprinting metal-containing nanoparticle-doped gratings to enhance the polarization of light-emitting chips by induced scattering [J]. | NANOTECHNOLOGY , 2021 , 32 (23) .
MLA Wang, Chunhui et al. "Nanoimprinting metal-containing nanoparticle-doped gratings to enhance the polarization of light-emitting chips by induced scattering" . | NANOTECHNOLOGY 32 . 23 (2021) .
APA Wang, Chunhui , Lai, Dengshui , Fan, Yu , Tian, Hongmiao , Li, Xiangming , Chen, Xiaoliang et al. Nanoimprinting metal-containing nanoparticle-doped gratings to enhance the polarization of light-emitting chips by induced scattering . | NANOTECHNOLOGY , 2021 , 32 (23) .
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Scalable Imprinting of Flexible Multiplexed Sensor Arrays with Distributed Piezoelectricity-Enhanced Micropillars for Dynamic Tactile Sensing EI SCIE
期刊论文 | 2020 , 5 (7) | ADVANCED MATERIALS TECHNOLOGIES | IF: 7.848
WoS CC Cited Count: 28
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Abstract :

The ongoing revolution of human-robot interactions and electronic skins has created new requirements for tactile sensors, including good mechanical flexibility, high sensitivity, and the availability of distributed pixels for detecting force distribution. Here, a highly sensitive flexible sensor array based on piezoelectricity-enhanced vertically aligned P(VDF-TrFE) micropillars is developed for dynamic tactile sensing. The core piezoelectric sensing micropillars are fabricated using a straightforward and scalable nanoimprinting technology and then sandwiched between a pair of cross electrode arrays to construct multiplexed sensor arrays. Due to the proposed structural design and nanoimprinting methodology, the sensor pixels exhibit uniform output generation, robust output stability, and scalable fabrication ability. In addition, taking advantage of the high compressibility and enhanced strain of the piezoelectric micropillars compared to planar films, the microstructured sensors show an enhanced sensitivity of 228.2 mV N-1 and a highly linear response to loads. By integrating the flexible sensor with a portable signal processing circuit, a complete tactile sensing system is successfully developed to provide clear intuitive user interfaces. The good flexibility and robust stability of the sensor arrays enable them to be attached onto curved surface for real-time tracking of dynamic force and imaging the force distribution.

Keyword :

flexible sensor arrays micropillars nanoimprinting piezoelectricity tactile sensors

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GB/T 7714 Chen, Xiaoliang , Shao, Jinyou , Tian, Hongmiao et al. Scalable Imprinting of Flexible Multiplexed Sensor Arrays with Distributed Piezoelectricity-Enhanced Micropillars for Dynamic Tactile Sensing [J]. | ADVANCED MATERIALS TECHNOLOGIES , 2020 , 5 (7) .
MLA Chen, Xiaoliang et al. "Scalable Imprinting of Flexible Multiplexed Sensor Arrays with Distributed Piezoelectricity-Enhanced Micropillars for Dynamic Tactile Sensing" . | ADVANCED MATERIALS TECHNOLOGIES 5 . 7 (2020) .
APA Chen, Xiaoliang , Shao, Jinyou , Tian, Hongmiao , Li, Xiangming , Wang, Chunhui , Luo, Yongsong et al. Scalable Imprinting of Flexible Multiplexed Sensor Arrays with Distributed Piezoelectricity-Enhanced Micropillars for Dynamic Tactile Sensing . | ADVANCED MATERIALS TECHNOLOGIES , 2020 , 5 (7) .
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