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Effect of the onoff Cycling Modulation Time Ratio of C2H2SF6 Flows on the Formation of Geometrically Controlled Carbon Coils
Joint Authors
Park, Semi
Eum, Jun-Ho
Park, Jung-Chul
Ahn, Sung Il
Kim, Sung-Hoon
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-02-01
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Carbon coils could be synthesized using C2H2/H2 as source gases and SF6 as an incorporated additive gas under thermal chemical vapor deposition system.
Nickel catalyst layer deposition and then hydrogen plasma pretreatment were performed prior to the carbon coils deposition reaction.
To obtain the geometrically controlled carbon coils, the cycling on/off modulation process for C2H2/SF6 flows was introduced during the initial reaction.
According to the different reaction processes, the different cycling on/off ratio and the different cycling numbers for C2H2/SF6 flows were carried out.
The characteristics (formation density, morphology, and geometry) of the deposited carbon coils on the substrate were investigated.
Microsized coils as well as nanosized coils could be existed under the higher growing/etching time ratio (180/30 s) condition.
On the other hand, the formation of nanosized coils could be mainly observed under the lower growing/etching time ratio (30/180 s) condition.
With increasing the numbers of cycles, the diameters of carbon nanofilaments composed the coils decreased.
The enhanced etching ability by the fluorine species was considered the main cause to control the geometry of carbon coils according to the growing/etching time ratio of the cycling on/off modulation process for C2H2/SF6 flows.
American Psychological Association (APA)
Park, Semi& Eum, Jun-Ho& Kim, Sung-Hoon& Park, Jung-Chul& Ahn, Sung Il. 2012. Effect of the onoff Cycling Modulation Time Ratio of C2H2SF6 Flows on the Formation of Geometrically Controlled Carbon Coils. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-1029315
Modern Language Association (MLA)
Park, Semi…[et al.]. Effect of the onoff Cycling Modulation Time Ratio of C2H2SF6 Flows on the Formation of Geometrically Controlled Carbon Coils. Journal of Nanomaterials No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-1029315
American Medical Association (AMA)
Park, Semi& Eum, Jun-Ho& Kim, Sung-Hoon& Park, Jung-Chul& Ahn, Sung Il. Effect of the onoff Cycling Modulation Time Ratio of C2H2SF6 Flows on the Formation of Geometrically Controlled Carbon Coils. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-1029315
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029315