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学者姓名:邵金友

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Edge-effect-mediated microfluidics for fabrication of microporous membrane with well-defined size and shape SCIE
期刊论文 | 2019 , 29 (3) | JOURNAL OF MICROMECHANICS AND MICROENGINEERING
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Abstract :

Microporous membranes of well-defined porous size, shape, and distribution are significantly important for environmental engineering and biomedical treatment applications, where high-throughput precise filtration is required. However, efficient manufacturing of desired microporous membranes remains a great challenge. In this study, an cost-effective method, based on edge-effect-mediated microfluidics, is proposed for the fabrication of polymeric microsieves with well-defined micropore arrays. This method refers to a lateral spreading of a liquid prepolymer between the protruding parts of a template and the flat surface of a substrate. The edge effect enables the liquid prepolymer to bypass, instead of filling the microholes of the template. Based on the proposed method, two types of monodisperse SiO2 microspheres were separated by solution filtration.

Keyword :

microchannels microfluidics wettability edge effect fabrication micropore

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GB/T 7714 Jiang, Chengbao , Li, Xiangming , Shao, Jinyou et al. Edge-effect-mediated microfluidics for fabrication of microporous membrane with well-defined size and shape [J]. | JOURNAL OF MICROMECHANICS AND MICROENGINEERING , 2019 , 29 (3) .
MLA Jiang, Chengbao et al. "Edge-effect-mediated microfluidics for fabrication of microporous membrane with well-defined size and shape" . | JOURNAL OF MICROMECHANICS AND MICROENGINEERING 29 . 3 (2019) .
APA Jiang, Chengbao , Li, Xiangming , Shao, Jinyou , Tian, Hongmiao , Li, Xiangmeng , Zhang, Jihang . Edge-effect-mediated microfluidics for fabrication of microporous membrane with well-defined size and shape . | JOURNAL OF MICROMECHANICS AND MICROENGINEERING , 2019 , 29 (3) .
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Nanoimprint lithography for the manufacturing of flexible electronics SCIE
期刊论文 | 2019 , 62 (2) , 175-198 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
WoS CC Cited Count: 4
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Abstract :

Flexible electronics have received considerable attention in academies and industries for their promising applications in enormous fields, such as flexible displays, wearable sensors, artificial skins, and flexible energy devices. Challenges remain in developing a flexible and scalable manufacturing method to facilitate the fabrication of multi-functional structures in a flexible electronic system. Nanoimprint lithography is a high resolution and low-cost approach to fabricate nanostructures over a large area. This paper reviews recent progress of nanoimprint lithography and its applications in flexible electronics. The basic principles, classification, research focus, and critical issues of nanoimprint lithography are elaborated. Then, the advantages of nanoimprint lithography are demonstrated in several typical applications related to flexible electronics, including conductive films, optoelectronic devices, flexible sensors, energy harvesting and storage devices, and bioinspired electronic devices. Finally, the challenges and perspectives of nanoimprint lithography in flexible electronic systems are discussed.

Keyword :

nanostructures nanoimprint sensors manufacturing flexible electronics lithography

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GB/T 7714 Shao, JinYou , Chen, XiaoLiang , Li, XiangMing et al. Nanoimprint lithography for the manufacturing of flexible electronics [J]. | SCIENCE CHINA-TECHNOLOGICAL SCIENCES , 2019 , 62 (2) : 175-198 .
MLA Shao, JinYou et al. "Nanoimprint lithography for the manufacturing of flexible electronics" . | SCIENCE CHINA-TECHNOLOGICAL SCIENCES 62 . 2 (2019) : 175-198 .
APA Shao, JinYou , Chen, XiaoLiang , Li, XiangMing , Tian, HongMiao , Wang, ChunHui , Lu, BingHeng . Nanoimprint lithography for the manufacturing of flexible electronics . | SCIENCE CHINA-TECHNOLOGICAL SCIENCES , 2019 , 62 (2) , 175-198 .
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Synthesis, characterization, and efficient electrohydrodynamic patterning with a high aspect ratio of a soluble oligomerpyrrole derivative SCIE
期刊论文 | 2019 , 137 , 116-122 | REACTIVE & FUNCTIONAL POLYMERS
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To efficiently manufacture high-aspect-ratio micro - /nanopattems of conducting polymers (CPs) via electro-hydrodynamic patterning (EHDP), a soluble oligomerpyrrole derivative was synthesized through the method of side-chain-induced solubilization. The oligomerpyrrole derivative shows a low number-average molecular weight (M-n) of 5674 due to the hindering effect of its bulky side chains and then exhibits excellent solubility, favorable film-forming ability and good thermal stability. It is found that because of the low viscosity and leaky dielectric property, a variety of high-aspect-ratio micro - /nanopatterns of the oligomerpyrrole derivative can be rapidly manufactured directly on a conductive substrate via changing the spacing of the air clearance of EHDP. This technique successfully provides a straightforward, economical and contactless way for patterning CP films into a series of high-aspect-ratio micro - /nanopatterns utilizing only a low-aspect-ratio mold.

Keyword :

Soluble oligomerpyrrole High aspect ratio Leaky dielectric Electrohydrodynamic patterning Conducting polymer

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GB/T 7714 Lv, Guowei , Tian, Hongmiao , Shao, Jinyou et al. Synthesis, characterization, and efficient electrohydrodynamic patterning with a high aspect ratio of a soluble oligomerpyrrole derivative [J]. | REACTIVE & FUNCTIONAL POLYMERS , 2019 , 137 : 116-122 .
MLA Lv, Guowei et al. "Synthesis, characterization, and efficient electrohydrodynamic patterning with a high aspect ratio of a soluble oligomerpyrrole derivative" . | REACTIVE & FUNCTIONAL POLYMERS 137 (2019) : 116-122 .
APA Lv, Guowei , Tian, Hongmiao , Shao, Jinyou , Yu, Demei . Synthesis, characterization, and efficient electrohydrodynamic patterning with a high aspect ratio of a soluble oligomerpyrrole derivative . | REACTIVE & FUNCTIONAL POLYMERS , 2019 , 137 , 116-122 .
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Protective integrated transparent conductive film with high mechanical stability and uniform electric-field distribution. PubMed SCIE
期刊论文 | 2019 , 30 (18) | Nanotechnology
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A stable and uniform electric field is to be generated even though a large mechanical deformation is the primary criterion for a transparent conductive film. This study proposes a protective integrated transparent conductive film (PITCF) including indium tin oxide (ITO), a silver nanowire (Ag NW) network, and a protective polydimethylsiloxane (PDMS) layer. A firmly bonding process of ITO/Ag NW/PDMS is established to avoid the failure of Ag NW to be oxidized by interlayer residual air or wrapped by liquid PDMS. Besides the good optical transparency, haze, and electrical conductivity as the only ITO film, the developed PITCF exhibits excellent bending resistance and mechanical stability. The ITO rupture fragments after bending deformation are firmly interconnected by the constrained Ag NWs. Even though the PITCF is bended more than 1000 cycles at a 6.5 mm bending distance, the changes in electrical resistance of PITCF are below 9.7%. Finally, an electroluminescent device with high bending resistance and uniform and high luminance is developed based on the designed PITCF.

Keyword :

ITO integrated electrode Ag NWs transparent conductive film

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GB/T 7714 Wang Chunhui , Shao Jinyou , Tian Hongmiao et al. Protective integrated transparent conductive film with high mechanical stability and uniform electric-field distribution. [J]. | Nanotechnology , 2019 , 30 (18) .
MLA Wang Chunhui et al. "Protective integrated transparent conductive film with high mechanical stability and uniform electric-field distribution." . | Nanotechnology 30 . 18 (2019) .
APA Wang Chunhui , Shao Jinyou , Tian Hongmiao , Li Xiangming . Protective integrated transparent conductive film with high mechanical stability and uniform electric-field distribution. . | Nanotechnology , 2019 , 30 (18) .
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High-performance piezoelectric nanogenerator based on microstructured P (VDF-TrFE)/BNNTs composite for energy harvesting and radiation protection in space EI SCIE Scopus
期刊论文 | 2019 , 60 , 701-714 | NANO ENERGY
WoS CC Cited Count: 3 SCOPUS Cited Count: 3
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Stable and durable piezoelectric nanogenerators (PENGs) with good flexibility, high performance and superior radiation resistance under harsh environments are promising for space exploration. Here, a novel PENG based on P(VDF-TrFE)/boron nitride nanotubes (BNNTs) nanocomposite micropillar arrays with enhanced performance and excellent neutron radiation shielding is prepared by a reliable nanoimprint lithography. The PENG comprised of a microstructured P(VDF-TrFE)/0.3 wt% BNNTs nanocomposite demonstrates an outstanding output voltage of 22 V and a sensitivity of 55 V/MPa under the pressure of 0.4 MPa, which are 11-fold higher than those of pristine P(VDF-TrFE) film. This dramatic enhancement in performance is ascribed to synergistic contributions from strong piezoelectric BNNTs and a strain confinement effect of the nanocomposite microstructure. In practice, the PENG is capable of scavenging various mechanical and biomechanical energy for lighting up commercial LEDs, an LCD screen and a digital watch. More importantly, the as-obtained PENG exhibited 9% neutron radiation shielding with neutron cross section increase reaching 260% when compared to the film without BNNTs. Moreover, the high output is retained after 2 h of neutron radiation exposure. Overall, the as-prepared microstructured nanocomposites look promising for high-efficiency piezoelectric nanogenerators for the self-powered and wearable electronic devices, in particularly, under the extreme space environments.

Keyword :

Piezoelectric nanogenerator Piezoelectric nanocomposite Neutron radiation shielding Boron nitride nanotube (BNNT) Nanoimprint lithography

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GB/T 7714 Ye, SB , Cheng, C , Chen, XM et al. High-performance piezoelectric nanogenerator based on microstructured P (VDF-TrFE)/BNNTs composite for energy harvesting and radiation protection in space [J]. | NANO ENERGY , 2019 , 60 : 701-714 .
MLA Ye, SB et al. "High-performance piezoelectric nanogenerator based on microstructured P (VDF-TrFE)/BNNTs composite for energy harvesting and radiation protection in space" . | NANO ENERGY 60 (2019) : 701-714 .
APA Ye, SB , Cheng, C , Chen, XM , Chen, XL , Shao, JY , Zhang, J et al. High-performance piezoelectric nanogenerator based on microstructured P (VDF-TrFE)/BNNTs composite for energy harvesting and radiation protection in space . | NANO ENERGY , 2019 , 60 , 701-714 .
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Transparent and stretchable bimodal triboelectric nanogenerators with hierarchical micro-nanostructures for mechanical and water energy harvesting EI SCIE Scopus
期刊论文 | 2019 , 64 , 103904 | NANO ENERGY
WoS CC Cited Count: 1 SCOPUS Cited Count: 2
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Advances in flexible electronics set new requirements of highly deformable energy generators to power these electronic devices. It is still a challenge to simultaneously achieve high stretchability and strong power generation for most energy generators to adapt the practical flexible applications. Herein, a hierarchical micronanostructure featured with high transparency, full stretchability, and superhydrophobicity is first created to construct high performance bimodal triboelectric nanogenerators (TENGs) for harvesting mechanical energy and water energy. The core SiO2/poly[vinylidenelfuoride-co-trifluoroethylene) P(VDF-TrFE) hierarchical micro-nanostructure is fabricated by a scalable electrospinning technology, and then reliably transferred to a pre-stretched elastomer to achieve robust stretchability and superhydrophobicity. Owing to the significantly increased surface roughness, the triboelectric output of the hierarchical structure is enhanced by 3 times higher than that of the pristine bulk film. The full flexibility characteristic enables the device to work under 300% stretching deformation without degrading performance. Furthermore, the superhydrophobicity and self-cleaning properties provide the TENG additional water energy harvesting ability. Under water flowing rate of 11 mL/s, the output reach approximately to 36V, and 10 mu A. The bifunctional energy harvesting ability, together with good transparency, high stretchability, and robust superhydrophobicity make the TENG a promising sustainable energy source for next-generation electronic devices.

Keyword :

Bimodal Hierarchical structure Nanogenerator Stretchable Water energy

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GB/T 7714 Chen, XL , Xiong, JQ , Parida, K et al. Transparent and stretchable bimodal triboelectric nanogenerators with hierarchical micro-nanostructures for mechanical and water energy harvesting [J]. | NANO ENERGY , 2019 , 64 : 103904 .
MLA Chen, XL et al. "Transparent and stretchable bimodal triboelectric nanogenerators with hierarchical micro-nanostructures for mechanical and water energy harvesting" . | NANO ENERGY 64 (2019) : 103904 .
APA Chen, XL , Xiong, JQ , Parida, K , Guo, ML , Wang, C , Wang, C et al. Transparent and stretchable bimodal triboelectric nanogenerators with hierarchical micro-nanostructures for mechanical and water energy harvesting . | NANO ENERGY , 2019 , 64 , 103904 .
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Gecko‐Effect Inspired Soft Gripper with High and Switchable Adhesion for Rough Surfaces EI SCIE Scopus
期刊论文 | 2019 , 6 (18) , 1900875 | ADVANCED MATERIALS INTERFACES
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Geckos, which can walk upside down on smooth or rough surfaces, owe this ability to the hierarchical structures under their toes. These structures are responsible for substantial adhesion and, at the same time, for quick attachment/detachment by mechanical stimulus of toe muscles. Inspired by such stimuli-responsive systems in nature, an active adhesive soft gripper for rough surfaces is proposed in this study, consisting of the mushroom-like morphology acting as adhesive structures and the pressure controllable deformation working as toe muscles. Through tunable pressure, the adhesive force can be increased and reduced by roughly 20-fold for a ground glass, in which it can quickly reach high adhesion with positive pressure and reduce to small adhesion under negative pressure. This gecko inspired soft gripper is tested and found successful as a pick-up and drop-down system for transporting a surface with different features, composed of rough acrylic plate, steel ball, flexible photo paper, heavy glass block/plate, etc., which will have great potential for applications in industrial line and daily life as well as providing a novel perspective for the design of soft grippers.

Keyword :

active adhesive gecko-effect adhesion rough surfaces soft gripper tunable pressure

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GB/T 7714 Tian, HM , Li, XM , Shao, JY et al. Gecko‐Effect Inspired Soft Gripper with High and Switchable Adhesion for Rough Surfaces [J]. | ADVANCED MATERIALS INTERFACES , 2019 , 6 (18) : 1900875 .
MLA Tian, HM et al. "Gecko‐Effect Inspired Soft Gripper with High and Switchable Adhesion for Rough Surfaces" . | ADVANCED MATERIALS INTERFACES 6 . 18 (2019) : 1900875 .
APA Tian, HM , Li, XM , Shao, JY , Wang, C , Wang, Y , Tian, YZ et al. Gecko‐Effect Inspired Soft Gripper with High and Switchable Adhesion for Rough Surfaces . | ADVANCED MATERIALS INTERFACES , 2019 , 6 (18) , 1900875 .
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Flexible Capacitive Pressure Sensor Enhanced by Tilted Micropillar Arrays EI SCIE Scopus Pubmed
期刊论文 | 2019 , 11 (19) , 17796-17803 | ACS APPLIED MATERIALS & INTERFACES
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Sensitivity of the sensor is of great importance in practical applications of wearable electronics or smart robotics. In the present study, a capacitive sensor enhanced by a tilted micropillar array-structured dielectric layer is developed. Because the tilted micropillars undergo bending deformation rather than compression deformation, the distance between the electrodes is easier to change, even discarding the contribution of the air gap at the interface of the structured dielectric layer and the electrode, thus resulting in high pressure sensitivity (0.42 kPa(-1)) and very small detection limit (1 Pa). In addition, eliminating the presence of uncertain air gap, the dielectric layer is strongly bonded with the electrode, which makes the structure robust and endows the sensor with high stability and reliable capacitance response. These characteristics allow the device to remain in normal use without the need for repair or replacement despite mechanical damage. Moreover, the proposed sensor can be tailored to any size and shape, which is further demonstrated in wearable application. This work provides a new strategy for sensors that are required to be sensitive and reliable in actual applications.

Keyword :

capacitive tilted micropillar array structures flexible; pressure sensor ultralight sensitivity

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GB/T 7714 Luo, YS , Shao, JY , Chen, SR et al. Flexible Capacitive Pressure Sensor Enhanced by Tilted Micropillar Arrays [J]. | ACS APPLIED MATERIALS & INTERFACES , 2019 , 11 (19) : 17796-17803 .
MLA Luo, YS et al. "Flexible Capacitive Pressure Sensor Enhanced by Tilted Micropillar Arrays" . | ACS APPLIED MATERIALS & INTERFACES 11 . 19 (2019) : 17796-17803 .
APA Luo, YS , Shao, JY , Chen, SR , Chen, XL , Tian, HM , Li, XM et al. Flexible Capacitive Pressure Sensor Enhanced by Tilted Micropillar Arrays . | ACS APPLIED MATERIALS & INTERFACES , 2019 , 11 (19) , 17796-17803 .
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Hybrid Nanostructure of SiO2@Si with Au-Nanoparticles for Surface Enhanced Raman Spectroscopy EI SCIE Scopus Pubmed
期刊论文 | 2019 , 11 (28) , 13484-13493 | NANOSCALE
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In this study, a structure of large-area orderly-arranged SiO2@Si core-shell nanoparticles decorated with Au nanoparticles was fabricated for surface-enhanced Raman spectroscopy (SERS). This hybrid structure features light confinement in the Si shells and a uniform distribution of localized electric hot spots. FDTD simulations were carried out to examine the near-field enhancement response of this structure. Results indicate that the strongly enhanced local electric field is attributed to the WGM-LSPR coupling, that is, the coupling of the whispering gallery mode (WGM) of Si nanoshells with the localized surface plasmon resonance (LSPR) of Au nanoparticles. The excitation of WGM comes primarily from the magnetic response of the Si shell with a minor modification by its electric response. The WGM-LSPR coupling of the structure is tunable through the change of geometric parameters of SiO2@Si particles. Raman scattering measurements were conducted on the samples fabricated, which agree well with the simulated results. The measured data gave a SERS G factor of similar to 2 x 10(8) and showed highly sensitive and reproducible SERS signals of R6G with a high spatial uniformity on a 2 x 2 cm(2) substrate consisting of an array of SiO2@Si (D = similar to 220 nm/290 nm) particles whose outer surfaces were scattered with d = similar to 20 nm Au particles.

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GB/T 7714 Yang, H , Li, BQ , Jiang, XB et al. Hybrid Nanostructure of SiO2@Si with Au-Nanoparticles for Surface Enhanced Raman Spectroscopy [J]. | NANOSCALE , 2019 , 11 (28) : 13484-13493 .
MLA Yang, H et al. "Hybrid Nanostructure of SiO2@Si with Au-Nanoparticles for Surface Enhanced Raman Spectroscopy" . | NANOSCALE 11 . 28 (2019) : 13484-13493 .
APA Yang, H , Li, BQ , Jiang, XB , Shao, JY . Hybrid Nanostructure of SiO2@Si with Au-Nanoparticles for Surface Enhanced Raman Spectroscopy . | NANOSCALE , 2019 , 11 (28) , 13484-13493 .
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Multilayered Dual Functional SiO2@Au@SiO2@QD Nanoparticles for Simultaneous Intracellular Heating and Temperature Measurement EI SCIE Scopus Pubmed
期刊论文 | 2019 , 35 (19) , 6367-6378 | LANGMUIR
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This paper discusses synthesis and application of dual functional SiO2@Au@SiO2@QD composite nanoparticles for integrated intracellular heating with temperature motoring. The particles are of multilayered concentric structure, consisting of Au nanoshells covered with quantum dots, with the former for infrared heating through localized surface plasma resonance while the later for temperature monitoring. The key to integrate plasmonic-heating/thermal-monitoring on a single composite nanoparticle is to ensure that the quantum dots be separated at a certain distance away from the Au shell surface in order to ensure a detectable quantum yield. Direct attachment of the quantum dots onto the Au shell would render the quantum dots practically functionless for temperature monitoring. To integrate quantum dots into Au nanoshells, a quantum quenching barrier of SiO2 was created by modifying a Stober-like process. Materials, optical and thermal characterization was made of these composite nanoparticles. Cellular uptake of the nanoparticles was discussed. Experiments were performed on simultaneous in vitro heating and temperature monitoring in a cell internalized with the dual-functional SiO2@Au@SiO2@QD composite nanoparticles.

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GB/T 7714 Jiang, XB , Li, BQ , Qu, XL et al. Multilayered Dual Functional SiO2@Au@SiO2@QD Nanoparticles for Simultaneous Intracellular Heating and Temperature Measurement [J]. | LANGMUIR , 2019 , 35 (19) : 6367-6378 .
MLA Jiang, XB et al. "Multilayered Dual Functional SiO2@Au@SiO2@QD Nanoparticles for Simultaneous Intracellular Heating and Temperature Measurement" . | LANGMUIR 35 . 19 (2019) : 6367-6378 .
APA Jiang, XB , Li, BQ , Qu, XL , Yang, H , Shao, JY , Zhang, HM . Multilayered Dual Functional SiO2@Au@SiO2@QD Nanoparticles for Simultaneous Intracellular Heating and Temperature Measurement . | LANGMUIR , 2019 , 35 (19) , 6367-6378 .
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