TITLE

Controlled growth of carbon nanotubes on electrodes under different bias polarity

AUTHOR(S)
Gao, Y.; Zhou, Y. S.; Xiong, W.; Mahjouri-Samani, M.; Mitchell, M.; Lu, Y. F.
PUB. DATE
October 2009
SOURCE
Applied Physics Letters;10/5/2009, Vol. 95 Issue 14, p143117
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Carbon nanotubes (CNTs) of different alignments, such as surface-bounded and vertically aligned arrays, enable applications in different fields. In this study, controlled growth of CNTs with different alignments was achieved by electrically biasing catalyzed electrodes with different polarities in a laser-assisted chemical vapor deposition process. CNT growth was suggested to be guided by the movement of electrically charged catalyst-nanoparticles under the influence of an external electric field. This discovery provides a convenient approach to control the alignment of CNT arrays for different applications.
ACCESSION #
44539695

 

Related Articles

  • Formation of single-wall carbon nanohorn aggregates hybridized with carbon nanocapsules by laser vaporization. Kobayashi, K.; Shimazu, T.; Yamada, Y.; Koshio, A.; Takahashi, Y.; Kokai, F. // Applied Physics A: Materials Science & Processing;Oct2007, Vol. 89 Issue 1, p121 

    Single-wall carbon nanohorn (SWNH) aggregates hybridized with carbon nanocapsules (CNCs) were fabricated at a high yield (∼70%). The carbon was laser-vaporized for 2 s into an Ar gas atmosphere with one of the following: Fe, Al, Si, Co, Ni, Cu, Ag, La2O3, Y2O3, and G2O3. By optimizing the...

  • Physical and Electrical Characteristics of Carbon Nanotube Network Field-Effect Transistors Synthesized by Alcohol Catalytic Chemical Vapor Deposition. Chin-Lung Cheng; Chien-Wei Liu; Bau-Tong Dai; Ming-Yen Lee // Journal of Nanomaterials;2011, p1 

    Carbon nanotubes (CNTs) have been explored in nanoelectronics to realize desirable device performances. Thus, carbon nanotube network field-effect transistors (CNTNFETs) have been developed directly bymeans of alcohol catalytic chemical vapor deposition (ACCVD) method using Co-Mo catalysts in...

  • Radiation-assisted Frenkel-Poole transport in single-crystal diamond. Girolami, M.; Bellucci, A.; Calvani, P.; Flammini, R.; Trucchi, D. M. // Applied Physics Letters;8/19/2013, Vol. 103 Issue 8, p083502 

    The measurement of the density of occupied states as a function of the applied electric field, performed on single-crystal chemical vapour deposition diamond by x-ray modulated photocurrent technique, is reported. Two regimes of non-linear charge transport were observed: a classical...

  • Enhanced field emission of vertically aligned core-shelled carbon nanotubes with molybdenum oxide encapsulation. Yu, J.; Sow, C. H.; Wee, Andrew T. S.; Chua, Daniel H. C. // Journal of Applied Physics;Jun2009, Vol. 105 Issue 11, p114320-1 

    The field emission characteristics of the core-shelled nanostructures obtained by directly coating molybdenum oxide onto vertically aligned multiwalled carbon nanotubes (MWNTs) was investigated. A metal-organic chemical vapor deposition technique was used with Mo(CO)6 as the precursor and films...

  • Factors Affecting Carbon Nanotubes (CNTs) Synthesis via the Chemical Vapour Deposition (CVD) Method. Zakaria, M.; Shariff, S. M. // AIP Conference Proceedings;8/22/2007, Vol. 929 Issue 1, p73 

    Several studies have shown that the presence and type/size of catalysts affect the growth mechanism and the nanotubes structures. The catalysts are believed to affect the catalytic decomposition of the carbon feedstock into carbon atoms and subsequent diffusion of these atoms through the...

  • Controlled synthesis and optical properties of Cu/C core/shell nanoparticles. Ma, Liang; Yu, Bowen; Wang, Shiliang; Su, Geng; Huang, Han; Chen, Hong; He, Yuehui; Zou, Jin // Journal of Nanoparticle Research;Aug2014, Vol. 16 Issue 8, p1 

    Copper-carbon core-shell nanoparticles were synthesized on a large scale by metal-organic chemical vapor deposition using copper (II) acetylacetonate as precursor. It was shown that the thickness of carbon shell and the diameter of copper cores could be easily tuned from 1.5 to 7.9 nm and from...

  • Observations of gas-phase nanoparticles during InGaN metal-organic chemical vapor deposition. Creighton, J. Randall; Coltrin, Michael E.; Figiel, Jeffrey J. // Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p171906 

    Using in situ laser light scattering, we have directly observed the formation of gas-phase nanoparticles during InN and InGaN metal-organic chemical vapor deposition. The angular dependence of the light scattering intensity suggests that the nanoparticles are metallic In or InGa alloys. From the...

  • Deposition of palladium nanoparticles on the pore walls of anodic alumina using sequential electroless deposition. Johansson, A.; Lu, J.; Carlsson, J.-O.; Boman, M. // Journal of Applied Physics;11/1/2004, Vol. 96 Issue 9, p5189 

    Palladium nanoparticles were deposited using a sequential electroless deposition technique on the pore walls of nanoporous anodic alumina. For the particle deposition a Pd(NH3)42+ solution was soaked in the alumina membrane and a heated air flow was applied in order to reduce the palladium...

  • Specific Metal Deposition onto Immobilized Metal Nanoparticles Studied on Single Particle Level. Festag, Grit; Schüler, Thomas; Steinbrück, Andrea; Csáki, Andrea; Fritzsche, Wolfgang // AIP Conference Proceedings;2006, Vol. 859 Issue 1, p55 

    Specific metal deposition on metal nanoparticles plays an important role in molecular construction as well as for microscopic visualization and signal enhancement in various bioanalytical methods. To characterize this process we studied surface-immobilized gold nanoparticle ensembles at single...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics