Ultralow flexural properties of copper microhelices fabricated via electrodeposition-based three-dimensional direct-writing technology

The ultralow stiffness of copper microhelices fabricated by a MCED direct-writing method was studied by the electrically induced quasi-static and dynamic electromechanical resonance technique.

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Direct-writing of vanadium dioxide/polydimethylsiloxane three-dimensional photonic crystals with thermally tunable terahertz properties

Journal of Materials Chemistry C ◽

10.1039/c8tc05759a ◽

2019 ◽

Vol 7 (27) ◽

pp. 8185-8191 ◽

Cited By ~ 3

Author(s):

Rong Wang ◽

Weiyi Yang ◽

Shuang Gao ◽

Xiaojing Ju ◽

Pengfei Zhu ◽

...

Keyword(s):

Photonic Crystals ◽

Vanadium Dioxide ◽

Three Dimensional ◽

Thermal Stimulus ◽

Direct Writing ◽

Writing Technology

3D THz photonic crystals with tunable THz properties responsive to external thermal stimulus were created by direct-writing technology.

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Three-dimensional micropatterning of graphene by femtosecond laser direct writing technology

Optics Letters ◽

10.1364/ol.45.000113 ◽

2019 ◽

Vol 45 (1) ◽

pp. 113 ◽

Cited By ~ 5

Author(s):

Yu-Qing Liu ◽

Jiang-Wei Mao ◽

Zhao-Di Chen ◽

Dong-Dong Han ◽

Zhi-Zhen Jiao ◽

...

Keyword(s):

Femtosecond Laser ◽

Three Dimensional ◽

Direct Writing ◽

Laser Direct Writing ◽

Writing Technology

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Advanced Micro-Actuator/Robot Fabrication Using Ultrafast Laser Direct Writing and Its Remote Control

Applied Sciences ◽

10.3390/app10238563 ◽

2020 ◽

Vol 10 (23) ◽

pp. 8563

Author(s):

Sangmo Koo

Keyword(s):

Three Dimensional ◽

Processing Technique ◽

Direct Writing ◽

Laser Direct Writing ◽

Precise Control ◽

Two Photon ◽

Non Invasive ◽

Acoustic Control ◽

Fs Laser ◽

Invasive Control

Two-photon polymerization (TPP) based on the femtosecond laser (fs laser) direct writing technique in the realization of high-resolution three-dimensional (3D) shapes is spotlighted as a unique and promising processing technique. It is also interesting that TPP can be applied to various applications in not only optics, chemistry, physics, biomedical engineering, and microfluidics but also micro-robotics systems. Effort has been made to design innovative microscale actuators, and research on how to remotely manipulate actuators is also constantly being conducted. Various manipulation methods have been devised including the magnetic, optical, and acoustic control of microscale actuators, demonstrating the great potential for non-contact and non-invasive control. However, research related to the precise control of microscale actuators is still in the early stages, and in-depth research is needed for the efficient control and diversification of a range of applications. In the future, the combination of the fs laser-based fabrication technique for the precise fabrication of microscale actuators/robots and their manipulation can be established as a next-generation processing method by presenting the possibility of applications to various areas.

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Optical tuning of three-dimensional photonic crystals fabricated by femtosecond direct writing

Applied Physics Letters ◽

10.1063/1.2037862 ◽

2005 ◽

Vol 87 (9) ◽

pp. 091117 ◽

Cited By ~ 25

Author(s):

Dennis McPhail ◽

Martin Straub ◽

Min Gu

Keyword(s):

Photonic Crystals ◽

Three Dimensional ◽

Direct Writing

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Direct Writing on Paper Substrate to Prepare Silver Electrode Structures for Flexible Sensors

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2021.19523 ◽

2021 ◽

Vol 21 (12) ◽

pp. 6048-6053

Author(s):

Qi Wang ◽

Mingwei Li ◽

Yao Xie ◽

Yun Ou ◽

Weiping Zhou

Keyword(s):

Low Cost ◽

Rapid Development ◽

Silver Electrode ◽

Silver Nanostructures ◽

Direct Writing ◽

Paper Substrate ◽

Electronic Products ◽

Glass Substrates ◽

Different Temperatures ◽

Writing Technology

With the rapid development of the electronics industry, electronic products based on silicon and glass substrates electronic products will gradually be unable to meet the rising demand. Flexibility, environmental protection, and low costs are important for the development of electronic products. In this study, an efficient and low-cost method for preparing silver electrode structures by direct writing on paper has been demonstrated. Based on this method, a flexible paper-based sensor was prepared. The liquid printing ink used mainly comprises a precursor liquid without pre-prepared nanomaterials. The precursor liquid is transparent with good fluidity. Simple direct writing technology was used to write on the paper substrate using the precursor ink. When the direct-writing paper substrate was subsequently heated, silver nanostructures precipitated from the precursor liquid ink onto the paper substrate. The effect of different temperatures on the formation of the silver nanostructures and the influence of different direct writing processes on the structures were studied. Finally, a paper-based flexible sensor was prepared for finger-bending signal detection. The method is simple to operate and low in cost and can be used for the preparation of environment-friendly paper-based devices.

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Development of single-layer positive resist process for electron beam direct writing technology

Electronics and Communications in Japan (Part II Electronics) ◽

10.1002/ecjb.4420780809 ◽

1995 ◽

Vol 78 (8) ◽

pp. 81-91 ◽

Cited By ~ 1

Author(s):

Hidenori Yamaguchi ◽

Toshio Sakamizu ◽

Fumio Murai ◽

Hiroshi Shiraishi ◽

Hajime Hayakawa ◽

...

Keyword(s):

Electron Beam ◽

Single Layer ◽

Direct Writing ◽

Writing Technology ◽

Positive Resist

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Rapid Fabrication of Continuous Surface Fresnel Microlens Array by Femtosecond Laser Focal Field Engineering

Micromachines ◽

10.3390/mi11020112 ◽

2020 ◽

Vol 11 (2) ◽

pp. 112 ◽

Cited By ~ 2

Author(s):

Linyu Yan ◽

Dong Yang ◽

Qihuang Gong ◽

Yan Li

Keyword(s):

Femtosecond Laser ◽

Three Dimensional ◽

Fresnel Lens ◽

Two Dimensional ◽

Direct Writing ◽

Lens Array ◽

Two Photon ◽

Rapid Fabrication ◽

Continuous Surface ◽

Two Photon Polymerization

Femtosecond laser direct writing through two-photon polymerization has been widely used in precision fabrication of three-dimensional microstructures but is usually time consuming. In this article, we report the rapid fabrication of continuous surface Fresnel lens array through femtosecond laser three-dimensional focal field engineering. Each Fresnel lens is formed by continuous two-photon polymerization of the two-dimensional slices of the whole structure with one-dimensional scan of the corresponding two-dimensional engineered intensity distribution. Moreover, we anneal the lens array to improve its focusing and imaging performance.

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Deposition of Bead Arrays With Variable Diameter by Self-Focusing of Electrohydrodynamic Jets

Volume 2: Additive Manufacturing; Materials ◽

10.1115/msec2017-2893 ◽

2017 ◽

Author(s):

Nicolas Martinez-Prieto ◽

Gabriela Fratta ◽

Jian Cao ◽

Kornel Ehmann

Keyword(s):

Low Cost ◽

Three Dimensional ◽

Deposition Process ◽

Direct Writing ◽

Variable Diameter ◽

Self Focusing ◽

Poly Ethylene Oxide ◽

Poly Ethylene ◽

Number Of Passes ◽

Bead Arrays

Electrohydrodynamic processes were used for direct-writing of bead arrays with controllable bead sizes. Experiments were conducted to align layers of bead-on-string structures in an effort to create three-dimensional patterns. The results show that the jet focuses on previously deposited droplets allowing for the selective deposition of material over already deposited patterns. Jet attraction to already deposited solutions on the substrate is attributed to the charge transport at the liquid ink-metal collector interface and the dielectric properties of the water/poly(ethylene oxide) solution under an electric field. The deposition process consists of 3 steps: (1) deposition of a layer of bead-on-string structures, (2) addition of extra volume to the beads by subsequent passes of the jet, and (3) evaporation of the solvent resulting in an array of beads with varying sizes. Patterns with up to 20 passes were experimentally obtained. The beads’ height was seen to be independent of the number of passes. The process reported is a simple, fast, and low-cost method for deposition of bead arrays with varying diameters.

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