Enhanced surface morphologies of screen-printed carbon nanotube films by heat treatment and their field-emission properties

Lee, Hyeon Jae; Lee, Yang Doo; Moon, Seung Il; Cho, Woo Sung; Lee, Yun Hi; Kim, Jai Kyeong; Hwang, Sung Woo; Ju, Byeong Kwon

doi:10.1016/j.carbon.2006.04.038

Cited by 27 publications

(9 citation statements)

References 15 publications

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“…Nearly twenty years after their discovery, CNT holds excessive potential for use in functional devices due to unusual properties. It could be used as a starting material for field emission display [1,2], supercapacitor electrodes [3,4], electron field emitter [5,6], hybrid fuel cell [7,8], and chemical sensor [9,10]. A thousand of patents and publications describe CNT as a tubular structure covalently bonded carbon atoms, having large aspect ratio (diameter of few nanometer order but length in micrometers).…”

Section: Introductionmentioning

confidence: 99%

Effect of Synthesis Temperature on the Growth Iron-Filled Carbon Nanotubes as Evidenced by Structural, Micro-Raman, and Thermogravimetric Analyses

Shamsudin

Asli

Abdullah

et al. 2012

Advances in Condensed Matter Physics

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Tubular structure and well dense of aligned carbon nanotubes (CNTs) were formulated using two-stage catalytic chemical vapor deposition apparatus. In this experiment, aligned CNT was synthesized in the range of 700–900°C temperatures with increment rate of 50°C per sample. The aligned CNT properties were investigated via field emission scanning electron microscope, micro-Raman spectrometer and thermogravimetric analyzer. The experimental results showed that aligned CNT properties were highly dependent on synthesis temperature changes. The optimum temperature of higher crystallinity was observed at 800°C synthesis temperature. However, the highest yield of nanotubes (~99.99%) was obtained at 900°C synthesis temperature. Aligned CNT orientation was in a parallel form and packed together in orderly manner. The behaviors of aligned CNT will be discussed in detail in this paper.

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Section: Introductionmentioning

confidence: 99%

Effect of Synthesis Temperature on the Growth Iron-Filled Carbon Nanotubes as Evidenced by Structural, Micro-Raman, and Thermogravimetric Analyses

Shamsudin

Asli

Abdullah

et al. 2012

Advances in Condensed Matter Physics

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“…Due to these facts, CNTs have been considered as one of the best candidates for future applications in nanotechnology (Ghosh et al 2009; Lee et al 2006;Cheng 2012;Vashist et al 2011;Durrer et al 2008). This has motivated the researchers to look into the growth aspect of CNTs and its characterization with an aim to have tailor made properties.…”

Section: Introductionmentioning

confidence: 99%

Fine-tuning control on CNT diameter distribution, length and density using thermal CVD growth at atmospheric pressure: an in-depth analysis on the role of flow rate and flow duration of acetylene (C2H2) gas

2014

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An optimization control has been demonstrated to obtain carbon nanotubes having specific diameter distribution, length, homogeneity, and yield during its growth by thermal chemical vapor deposition technique under atmospheric pressure. Carbon nanotubes (CNTs) were grown on silicon wafer where a predeposition of iron catalyst of 2 nm thickness was made by sputtering. The growth was conducted under two variable parameters, i.e., flow rate and flow duration. Argon and hydrogen mixture was used for pretreatment of catalyst and as etching gas, and acetylene as a carbon precursor. In-depth analysis shows that increase in flow rate from 10 to 50 sccm resulted in increase in the concentration of amorphous carbon, CNTs diameter range and decrease in length, we found best result at 20 sccm flow rate of acetylene gas. On the other hand, as we varied flow duration from 6 to 14 min, with keeping flow rate of acetylene 20 sccm constant, dense homogeneous growth of horizontal CNTs network plus an increase in length and diameter range were observed. An optimization of flow rate and flow duration is presented here to obtain a selective diameter distribution and length as expected by this growth technique. Atomic force microscopy, field emission scanning electron microscopy and Raman spectroscopy were used to investigate the samples' morphologies in support of the observations made.

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“…As-grown and laser-modified area are manufactured together in one sample in order to study their respective electronic structure under the same experimental condition. 284.5 13 …”

Section: Design Of Controllable Gaseous Environment Insides Laser-irrmentioning

confidence: 99%

Spectro-Microscopic Study of Laser-Modified Carbon Nanotubes

Chuang¹,

Sow²,

Lin³

2011

Electronic Properties of Carbon Nanotubes

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Enhanced surface morphologies of screen-printed carbon nanotube films by heat treatment and their field-emission properties

Cited by 27 publications

References 15 publications

Effect of Synthesis Temperature on the Growth Iron-Filled Carbon Nanotubes as Evidenced by Structural, Micro-Raman, and Thermogravimetric Analyses

Effect of Synthesis Temperature on the Growth Iron-Filled Carbon Nanotubes as Evidenced by Structural, Micro-Raman, and Thermogravimetric Analyses

Fine-tuning control on CNT diameter distribution, length and density using thermal CVD growth at atmospheric pressure: an in-depth analysis on the role of flow rate and flow duration of acetylene (C2H2) gas

Spectro-Microscopic Study of Laser-Modified Carbon Nanotubes

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