Ferrofluids for Fabrication of Remotely Controllable Micro‐Nanomachines by Two‐Photon Polymerization

Xia, Hong; Wang, Juan; Tian, Yantao; Chen, Qi‐Dai; Du, Xiaobo; Zhang, Yong‐Lai; He, Yan; Sun, Hong–Bo

doi:10.1002/adma.201000542

Cited by 234 publications

(166 citation statements)

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“…[ 11 ] Furthermore, TPP lithography was found to be an ideal tool for developing 3D functional architectures using composite resins doped with various functional materials, including photoisomerizable dyes, [ 12 ] semiconductor nanoparticles, [ 13 ] metallic nanoparticles, [ 14 ] and magnetic nanoparticles. [ 15 ] Besides photopolymerization, various other photochemical/photophysical mechanisms can be also used in micro/nanodevice fabrication, including photoisomerization, [ 16 ] photoreduction, [ 17 ] photo-precipitation of sol-gel, [ 18 ] and other novel laser-induced photochemical transformation processes. [ 19 ] Due to their remarkable mechanical, electrical, thermal, and optical properties, carbon nanotubes (CNTs) are promising fi llers in polymer-based composites [ 20 ] and have already demonstrated remarkable performance enhancements of polymer matrices, including mechanical, electrical, and thermal Figure 1 illustrates an experimental procedure for preparing MTA composite resins for TPP fabrication.…”

Section: It Is Diffi Cult To Develop Tpp-compatible Photoresists Withmentioning

confidence: 99%

Laser‐Directed Assembly of Aligned Carbon Nanotubes in Three Dimensions for Multifunctional Device Fabrication

et al. 2016

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Laser-directed assembly of multiwalled carbon nanotubes (MWNTs) in 3D space is investigated via a two-photon polymerization technique. MWNT-thiol-acrylate (MTA) composite resins are developed with high MWNT concentrations up to 0.2 wt%, over one order of magnitude higher than previously published work. Significantly enhanced electrical and mechanical properties of the 3D micro-/nanostructures are achieved. Microelectronic devices made of the MTA resins are demonstrated.

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Section: It Is Diffi Cult To Develop Tpp-compatible Photoresists Withmentioning

confidence: 99%

Laser‐Directed Assembly of Aligned Carbon Nanotubes in Three Dimensions for Multifunctional Device Fabrication

et al. 2016

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“…TPP lithography is also an ideal tool for developing nanomaterials/polymer composite based micro/nano-structures. Photoisomerizable dyes [30], semiconductor nanoparticles [31,32], metallic nanoparticles [33,34], and magnetic nanoparticles [35,36] provide additional physical properties in host polymers, achieving a variety of functional active micro/nano-devices.…”

Section: Introductionmentioning

confidence: 99%

3D microfabrication of single-wall carbon nanotube/polymer composites by two-photon polymerization lithography

Ushiba

Shoji

Masui

et al. 2013

Carbon

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Please cite this article as: Ushiba, S., Shoji, S., Masui, K., Kuray, P., Kono, J., Kawata, S., 3D microfabrication of single-wall carbon nanotube/polymer composites by two-photon polymerization lithography, Carbon (2013), doi: http://dx.doi.org/10. 1016/j.carbon.2013.03.020 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractWe present a method to develop single-wall carbon nanotube (SWCNT)/polymer composites into arbitrary three-dimensional micro/nano structures. Our approach, based on two-photon polymerization lithography, allows one to fabricate three-dimensional SWCNT/polymer composites with a minimum spatial resolution of a few hundreds nm. A near-infrared femtosecond pulsed laser beam was focused onto a SWCNT-dispersed photo resin, and the laser light solidified a nanometric volume of the resin. The focus spot was three-dimensionally scanned, resulting in the fabrication of arbitrary shapes of SWCNT/polymer composites.SWCNTs were uniformly distributed throughout the whole structures, even in a few hundreds nm thick nanowires. Furthermore, we also found an intriguing phenomenon that SWCNTs were self-aligned in polymer nanostructures, promising improvements in mechanical and electrical properties. Our method has great potential to open up a wide range of applications such as micro-and nanoelectromechanical systems, micro/nano actuators, sensors, and photonics devices based on CNTs. Main Text

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“…For example, 3D multicolor luminescent polymer microstructures were produced by the incorporation of CdS nanoparticles (cadmium methacrylates) [76]. Doping with surfacemodified Fe 3 O 4 nanoparticles imparted magnetic properties to 3D polymer microstructures [77]. Single-wall carbon nanotubes (SWCNTs)/polymer composites with arbitrary 3D micro-and nanostructures were synthesized from a mixture of an SWCNT solution and the resin [78], where the SWCNTs in the composite structure were aligned with the laser scanning direction.…”

Section: Applicationsmentioning

confidence: 99%

Progress in ultrafast laser processing and future prospects

Sugioka

2017

Nanophotonics

179

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Abstract:The unique characteristics of ultrafast lasers have rapidly revolutionized materials processing after their first demonstration in 1987. The ultrashort pulse width of the laser suppresses heat diffusion to the surroundings of the processed region, which minimizes the formation of a heat-affected zone and thereby enables ultrahigh precision micro-and nanofabrication of various materials. In addition, the extremely high peak intensity can induce nonlinear multiphoton absorption, which extends the diversity of materials that can be processed to transparent materials such as glass. Nonlinear multiphoton absorption enables three-dimensional (3D) micro-and nanofabrication by irradiation with tightly focused femtosecond laser pulses inside transparent materials. Thus, ultrafast lasers are currently widely used for both fundamental research and practical applications. This review presents progress in ultrafast laser processing, including micromachining, surface micro-and nanostructuring, nanoablation, and 3D and volume processing. Advanced technologies that promise to enhance the performance of ultrafast laser processing, such as hybrid additive and subtractive processing, and shaped beam processing are discussed. Commercial and industrial applications of ultrafast laser processing are also introduced. Finally, future prospects of the technology are given with a summary.

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Ferrofluids for Fabrication of Remotely Controllable Micro‐Nanomachines by Two‐Photon Polymerization

Cited by 234 publications

References 20 publications

Laser‐Directed Assembly of Aligned Carbon Nanotubes in Three Dimensions for Multifunctional Device Fabrication

Laser‐Directed Assembly of Aligned Carbon Nanotubes in Three Dimensions for Multifunctional Device Fabrication

3D microfabrication of single-wall carbon nanotube/polymer composites by two-photon polymerization lithography

Progress in ultrafast laser processing and future prospects

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