Direct writing of carbon nanotube patterns by laser-induced chemical vapor deposition on a transparent substrate

Park, J.B.; Jeong, Mun Seok; Jeong, Sungho

doi:10.1016/j.apsusc.2008.11.070

Cited by 14 publications

(15 citation statements)

References 22 publications

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“…This is a result of the change in surface energy and wetting properties of the catalyst 75 as well as the different heat distribution through the subcatalyst layer and substrate. 76,77 On top of that, transparency of the substrate for certain wavelengths is another property that significantly influences the growth method that can be used. The most commonly used substrate is silicon, although fused silica, [76][77][78] graphite and grafoil, 79 and porous Al 2 O 3 membranes 80,81 were also used in combination with laser-assisted growth.…”

Section: A Catalyst and Substratementioning

confidence: 99%

“…76,77 On top of that, transparency of the substrate for certain wavelengths is another property that significantly influences the growth method that can be used. The most commonly used substrate is silicon, although fused silica, [76][77][78] graphite and grafoil, 79 and porous Al 2 O 3 membranes 80,81 were also used in combination with laser-assisted growth. Shi et al 82 synthesized suspended multiwall (650 C) as well as single-wall (770 C) nanotubes on inverse opal templates of silicon covered with a NiFe catalyst.…”

Section: A Catalyst and Substratementioning

confidence: 99%

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Laser-assisted growth of carbon nanotubes—A review

Burgt

2014

Journal of Laser Applications

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Laser-assisted chemical vapor deposition (LACVD) is an attractive maskless process for growing locally carbon nanotubes at selected places on substrates that may contain temperature-sensitive components. This review gives a comprehensive overview of the reported research with respect to laser assisted CVD for the growth of carbon nanotubes. The advantages and disadvantages of local growth using laser sources are discussed, with a focus on structural quality and properties, such as length, position and alignment, and process control. The paper is divided into two parts. The first part deals with the influence that the main parameters for nanotube growth-gas, catalyst and thermal energyhave on the growth of carbon nanotubes by laser-assisted synthesis. The second part deals with the attempts and successes to control different aspects of local nanotube growth using a laser-assisted growth method. V

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Section: A Catalyst and Substratementioning

confidence: 99%

Section: A Catalyst and Substratementioning

confidence: 99%

Laser-assisted growth of carbon nanotubes—A review

Burgt

2014

Journal of Laser Applications

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“…This can lead to detrimental positive optical feedback, whereby the sample quickly overheats at the center of the laser spot, leading to uncontrolled inhomogeneous growth. 14,16 Here, we introduce the concept of a co-catalytic absorption layer structure for controlled LiCVD, in which a thin CNT catalyst support layer chemically aids the initial catalyst reduction and hence enables a significant reduction of the applied laser power, preventing detrimental positive optical feedback and allowing improved growth control. We focus on Ta mediated solid-state reduction of Fe catalysts 27 and systematically investigate the interplay of light absorption and heat conduction for varying Ta support layer thickness to establish general guidelines for the effective design of catalyst/ absorption layer combinations in LiCVD.…”

Section: ■ Introductionmentioning

confidence: 99%

Co-catalytic Absorption Layers for Controlled Laser-Induced Chemical Vapor Deposition of Carbon Nanotubes

Michaelis

Weatherup

Bayer

et al. 2014

ACS Appl. Mater. Interfaces

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The concept of co-catalytic layer structures for controlled laser-induced chemical vapor deposition of carbon nanotubes is established, in which a thin Ta support layer chemically aids the initial Fe catalyst reduction. This enables a significant reduction in laser power, preventing detrimental positive optical feedback and allowing improved growth control. Systematic study of experimental parameters combined with simple thermostatic modeling establishes general guidelines for the effective design of such catalyst/absorption layer combinations. Local growth of vertically aligned carbon nanotube forests directly on flexible polyimide substrates is demonstrated, opening up new routes for nanodevice design and fabrication.

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“…2(d). With higher temperature, burn-out phenomenon [7] could occur for the as-grown CNTs. For further higher temperature, even SMS can be permanently destroyed due to overheating, as shown in Fig.…”

Section: Resultsmentioning

confidence: 98%

Synthesis of Carbon Nanotubes on Suspending Microstructures by Rapid Local Laser Heating

Ruan

Wang

et al. 2011

IEEE Sensors J.

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A chemical vapor deposition (CVD) method using local infrared laser heating is developed for synthesis of carbon nanotubes (CNTs) on suspending microstructures. Adjusting the laser power and the focused beam spot enables local illumination and heating of suspending microstructures to high temperature for CNT growth. Rapid synthesis of multiwalled CNTs on suspending microstructures is successfully achieved. This method provides uniform temperature distribution for self-confined CNT growth, with structure size adaptability. It avoids the need of global heating in conventional CVD synthesis and protects temperature sensitive devices from being damaged. The CNTs are typical in a porous foam manner with the potential in sensor applications.

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Direct writing of carbon nanotube patterns by laser-induced chemical vapor deposition on a transparent substrate

Cited by 14 publications

References 22 publications

Laser-assisted growth of carbon nanotubes—A review

Laser-assisted growth of carbon nanotubes—A review

Co-catalytic Absorption Layers for Controlled Laser-Induced Chemical Vapor Deposition of Carbon Nanotubes

Synthesis of Carbon Nanotubes on Suspending Microstructures by Rapid Local Laser Heating

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