Results 221 to 230 of about 4,101 (271)
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Novel laser scribed graphene devices
2014 International Symposium on Next-Generation Electronics (ISNE), 2014Wafer-scale graphene devices could be fabricated by one step laser scribing method. Four kinds of novel laser scribed graphene devices have been developed, including in-plane transistors, photodetectors, loudspeakers and strain sensors. The in-plane graphene transistors have a large on/off ratio up to 5.34.
He Tian +4 more
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Flexible laser scribed biomimetic supercapacitors
Frontiers in Optics 2016, 2016An enhancement of 101 Whcm−3 in the energy storage density was attained for the laser scribed graphene oxide supercapacitors using the biomimetic structures adopted from Fern leaf structures in comparison with its planar electrode counterpart. OCIS codes: (220.0220) Optical design and fabrication; (220.4000) Microstructure fabrication.
Litty V. Thekkekara +3 more
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Precision laser scribing machine
SPIE Proceedings, 1994In this paper we describe a new high precision laser scribing machine. The platform of this machine is driven by a servo motor controlled with an photoelectric coder and computer. With a predetermined laser beam axis angle (equal to 25 degree(s)) to the normal line of the workpiece's surface, the laser beam axis is always quasi-perpendicular to the ...
Yongzheng Li, Qiu'e Zhang
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Laser scribing of polycrystalline thin films
Optics and Lasers in Engineering, 2000Abstract We have investigated the use of several different types of lasers for scribing of the polycrystalline materials used for thin-film solar cells: CdTe, CuInGaSe2 (CIGS), ZnO, SnO2, Mo, Al, and Au. The lasers included four different neodymium–yttrium–aluminum garnet (Nd:YAG) (both 1064 and 532 nm wavelengths), a Cu vapor (511/578 nm), an XeCl ...
A.D Compaan, I Matulionis, S Nakade
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Neurite Guidance on Laser-Scribed Reduced Graphene Oxide
Nano Letters, 2018This paper describes a one-step, chemical-free method to generate micropatterned in vitro neuronal networks on chemically unmodified reduced graphene oxide. The suggested method relies on infrared-based photothermal reduction of graphene oxide, which concurrently leads to the formation of submicrometer-scale surface roughness that promotes neuronal ...
Sang Hwa Lee +5 more
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Mechanically inspired laser scribing of thin flexible glass
Optics Letters, 2015Laser cutting of thin glass (
Adam R, Collins, Gerard M, O'Connor
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Laser-Scribed Graphene Electrodes for Aptamer-Based Biosensing
ACS Sensors, 2017Graphene as a transducer material has produced some of the best-performing sensing approaches to date opening the door toward integrated miniaturized all-carbon point-of-care devices. Addressing this opportunity, laser-scribed graphene (LSG) electrodes are demonstrated here as highly sensitive and reliable biosensor transducers in blood serum analysis.
Christoph Fenzl +5 more
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Laser scribed graphene for energy storage application
2015 Opto-Electronics and Communications Conference (OECC), 2015In this paper, a method of laser reduction to produce reduced graphene oxide is explored. Results show that the resultant graphene layer, together with proper electrolyte, can be used to fabricate high energy density supercapacitors.
Jiao, Lihong, Gorby, Ryan
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Laser scribing of Sb2Se3 thin-film solar cells
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2021Photovoltaic cells offer a clean and sustainable solution by allowing the reduction of fossil energy. In recent decades, several types of solar cells have been proposed to overcome the limitation of stiffness of common silicon-based solar cells. Due to their flexibility, thin-film solar cell technology is now of great interest to the community.
Giovanardi F +7 more
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Laser scribing on polycrystalline diamond compound blade
SPIE Proceedings, 1998A new method of laser scribing on polycrystalline diamond film is proposed in the paper, the requirements of laser machine output, the calculation of technological parameters and the best combination of voltage, pulse duration and feed rate are discussed. Finally, the paper gives the laser scribing experimental results.
Zhanguo Li +3 more
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