Femtosecond laser direct writing of Cu–Ni alloy patterns ...- femtosecond laser sintering ,Dec 01, 2021· Continuous-wave (CW) lasers and nanosecond and femtosecond laser pulses can be used , , , and sintering can be conducted in an ambient atmosphere without a vacuum environment , . Metal oxide nanoparticle inks consist of metal oxide nanoparticles, reductant agents, and dispersants; they have been also used with laser printing technology for ...Direct writing of three-dimensional Cu-based sensors using ...Feb 19, 2018· 2D and 3D metal microstructures are directly written using femtosecond laser reductive sintering of metal oxide nanoparticles. CuO nanoparticle solutions including CuO nanoparticles, a reductant agent, and a dispersant, were coated on glass substrates. Then, focused femtosecond laser pulses were irradiated onto the solution film to write the ...
Carl Deckard applied these principles in the 1990s to develop a fabrication method that he called “selective laser sintering 3,” which rapidly evolved into 3D ... This tool, configured with a Spirit 1040-/520-nm industrial femtosecond laser, with either XMS or VP series motion stages and an XPS-Q4 four-axis controller, can process glass ...
The ultrafast melting of copper nanoparticles (NPs) induced by a femtosecond laser pulse with duration of 100 fs and wavelength of 800 nm is investigated theoretically and experimentally. The Cu pattern fabricated from sintering of a Cu NP-dispersed film by the femtosecond laser at a repetition rate of 80 MHz is experimentally studied.
May 28, 2018· A micropatterning process that uses femtosecond laser reductive sintering of mixed CuO/NiO nanoparticles and selective fabrication of p-type and n-type thermoelectric micropAtterns was demonstrated to be possible with control of the reduction and reoxidization reactions through the control of writing speed and total irradiation energy. Direct laser-writing …
Jul 16, 2012· Femtosecond laser irradiation displays a nonthermal welding mechanism which is promising to build complex nanodevices without modifying the central structures of nanoscopic building blocks. ... Peng, A. Hu, and Y. Zhou, “ Laser sintering of silver nanoparticle thin films: Microstructure and optical properties,” Appl. Phys. A (to be published).
Nov 21, 2011· To obtain more in-depth knowledge about the microscopic process during laser sintering, phase change processes including melting, evaporation, and resolidification during the irradiation of femtosecond laser on nanosized gold particles were simulated. The effects of multiple reflections and pulse energy overlapping in small particle size were considered. The …
May 28, 2018· Ni micropatterns have also been fabricated by laser reductive sintering of NiO NPs [10,11]. In this process, solutions of NiO NPs and toluene are reduced by irradiation with a 514.5-nm continuous wave laser to fabricate 2D and Ni patterns. We have also developed a process for femtosecond laser reductive sintering of metal oxide NPs [12,13,14 ...
The ultrafast melting of copper nanoparticles (NPs) induced by a femtosecond laser pulse with duration of 100 fs and wavelength of 800 nm is investigated theoretically and experimentally. The Cu pattern fabricated from sintering of a Cu NP-dispersed film by the femtosecond laser at a repetition rate of 80 MHz is experimentally studied.
Mar 29, 2022· For instance, femtosecond laser sintering has been shown to be a promising method for recording copper, nickel, and cobalt conductive patterns on polymers and other types of substrates, but the high cost and instability of fs laser sources, in particular, are still the essential issues that hinder the full transition of this technique from ...
Laser sintering of metal nanoparticle dispersions in particular. The increasing development of flexible and printed electronics has fueled substantial advancements in selective laser sintering, which has been attracting interest over the past decade. Laser sintering of metal nanoparticle dispersions in particular
Nov 21, 2011· To obtain more in-depth knowledge about the microscopic process during laser sintering, phase change processes including melting, evaporation, and resolidification during the irradiation of femtosecond laser on nanosized gold particles were simulated. The effects of multiple reflections and pulse energy overlapping in small particle size were considered. The …
J. Noh and D. Kim, "Femtosecond laser sintering of siver nanoparticles", The International Conference on Laser Ablation, U.S.A (2019.09.08) [2018] J. Ha, H. Y. Jung, Y. J. Jung, and D. Kim, “Femtosecond laser-induced structural modification with formation of linear carbon chains in single-walled carbon nanotube networks,” NanoPT 2018 ...
Femtosecond laser reductive sintering for metal patterning has been restricted to metal and metal-oxide composite materials. By irradiating CuO-nanoparticle paste with femtosecond laser pulses under inert gas injection, we intended to reduce the generation of metal oxides in the formed patterns.
Surface processing of silicon using a 400-fs ytterbium fiber laser has been experimentally investigated. Processing was conducted using an average power of 20 W at laser repetition rates from 500 kHz – 2 MHz and scanning speeds up to 2.8 mm/s. Samples showed both effective material removal and detrimental surface artifacts resulting from high surface …
May 08, 2019· Cu-based micropatterns were directly fabricated using femtosecond laser pulse-induced sintering of Cu 2 O nanospheres. Cu 2 O nanospheres synthesized by the polyol method were spin-coated on glass substrates. By evaluating the nonlinear optical absorption of the Cu 2 O nanosphere films using the Z-scan method, the two-photon absorption coefficient …
May 28, 2018· A micropatterning process that uses femtosecond laser reductive sintering of mixed CuO/NiO nanoparticles and selective fabrication of p-type and n-type thermoelectric micropAtterns was demonstrated to be possible with control of the reduction and reoxidization reactions through the control of writing speed and total irradiation energy. Direct laser-writing …
Mar 29, 2022· For instance, femtosecond laser sintering has been shown to be a promising method for recording copper, nickel, and cobalt conductive patterns on polymers and other types of substrates, but the high cost and instability of fs laser sources, in particular, are still the essential issues that hinder the full transition of this technique from ...
May 15, 2017· Selective laser sintering (SLS) has received attention in three-dimensional (3D) metal printing. 1 – 7) In this method, metal powders several micrometers in size are first fed to form the metal powder bed in stages. Then, a laser beam is irradiated onto the surface of the bed in inert gas such as Ar and vacuum atmosphere to form two-dimensional (2D) metal structures …
Femtosecond laser reductive sintering for metal patterning has been restricted to metal and. In this paper, we report the effect of inert gas injection on Cu patterning generated by femtosecond laser reductive sintering of CuO nanoparticles (NPs). Femtosecond laser reductive sintering for metal patterning has been restricted to metal and
Mar 29, 2022· For instance, femtosecond laser sintering has been shown to be a promising method for recording copper, nickel, and cobalt conductive patterns on polymers and other types of substrates, but the high cost and instability of fs laser sources, in particular, are still the essential issues that hinder the full transition of this technique from ...
Femtosecond laser reductive sintering for metal patterning has been restricted to metal and. In this paper, we report the effect of inert gas injection on Cu patterning generated by femtosecond laser reductive sintering of CuO nanoparticles (NPs). Femtosecond laser reductive sintering for metal patterning has been restricted to metal and
May 28, 2018· A micropatterning process that uses femtosecond laser reductive sintering of mixed CuO/NiO nanoparticles and selective fabrication of p-type and n-type thermoelectric micropAtterns was demonstrated to be possible with control of the reduction and reoxidization reactions through the control of writing speed and total irradiation energy. Direct laser-writing …
Mar 29, 2022· For instance, femtosecond laser sintering has been shown to be a promising method for recording copper, nickel, and cobalt conductive patterns on polymers and other types of substrates, but the high cost and instability of fs laser sources, in particular, are still the essential issues that hinder the full transition of this technique from ...
May 15, 2017· Selective laser sintering (SLS) has received attention in three-dimensional (3D) metal printing. 1 – 7) In this method, metal powders several micrometers in size are first fed to form the metal powder bed in stages. Then, a laser beam is irradiated onto the surface of the bed in inert gas such as Ar and vacuum atmosphere to form two-dimensional (2D) metal structures …
Aug 20, 2010· By applying a femtosecond laser for the selective sintering of metal nanoparticles on a heat sensitive substrate, the heat-affected zone during the laser sintering process can be minimized. Through this work, metal conductors with nanometer features and a high conductivity were successfully fabricated.
