Dielectrophoretic Alignment and Pearl Chain Formation of Single-Walled Carbon Nanotubes in Deuterium Oxide Solution

Dong Su Lee; Yung Woo Park

Carbon Letters

Abbr : Carbon Lett.
2012, 13(4), pp.248-253
Publisher : Korean Carbon Society
Research Area : Other Natural Sciences General

Dong Su Lee ¹, Yung Woo Park ²

¹Korea Institute of Science and Technology
²Seoul National University

ABSTRACT

Dielectrophoretic filtering and alignment of single-walled carbon nanotubes (SWCNTs) were tested using deuterium oxide as a solvent. A solution of deuterium oxide-SWCNTs was dropped on top of a silicon chip and an ac electric field was applied between pre-defined electrodes. Deuterium oxide was found to be a better solvent than hydrogen oxide for the dielectrophoresis process with higher efficiency of filtering. This was demonstrated by comparing Raman spectra measured on the initial solution with those measured on the filtered solution. We found that the aligned nanotubes along the electric field were not deposited on the substrate but suspended in solution, forming chain-like structures along the field lines. This so-called pearl chain formation of CNTs was verified by electrical measurements through the aligned tubes. The solution was frozen in liquid nitrogen prior to the electrical measurements to maintain the chain formation. The current-voltage characteristics for the sample demonstrate the existence of conduction channels in the solution, which are associated with the SWCNT chain structures.
KEYWORDS

carbon nanotubes, dielectrophoresis, dielectrophoretic filterings, pearl chain formation
REFERENCES (33)

[journal] Iijima S / 1991 / Helical microtubules of graphitic carbon / Nature 354 : 59~

[journal] Dekker C / 1999 / Carbon nanotubes as molecular quantum wires / Physics Today 52 : 22~

[book] Dresselhaus MS / 2001 / Carbon nanotubes: synthesis, structural properties and applications / Springer

[journal] Tans SJ / 1998 / Room-temperature transistor based on a single carbon nanotube / Nature 393 : 49~

[journal] Derycke V / 2002 / Controlling doping and carrier injection in carbon nanotube transistors / Appl Phys Lett 80 : 2773~

[journal] Nygard J / 1999 / Electrical transport measurements on single-walled carbon nanotubes / Appl Phys A: Mater Sci Process 69 : 297~

[journal] Yao Z / 2000 / High-field electrical transport in single- wall carbon nanotubes / Phys Rev Lett 84 : 2941~

[journal] Novoselov KS / 2005 / Two-dimensional gas of massless Dirac fermions in graphene / Nature 438 : 197~

[journal] Zhang YB / 2005 / Experimental observation of the quantum Hall effect and Berry’s phase in graphene / Nature 438 : 201~

[journal] Yang H / 201206 / Graphene Barristor, a Triode Device with a Gate-Controlled Schottky Barrier / SCIENCE / AMER ASSOC ADVANCEMENT SCIENCE 336(6085) : 1140~1143

[journal] Avouris P / 2007 / Carbon-based electronics / Nat Nanotechnol 2 : 605~

[journal] Tans SJ / 1997 / Individual single-wall carbon nanotubes as quantum wires / Nature 386 : 474~

[journal] Lin YM / 2004 / Ambipolar-to-unipolar conversion of carbon nanotube transistors by gate structure engineering / Nano Lett 4 : 947~

[journal] 이동수 / 200605 / Fabrication of crossed junctions of semiconducting and metallic carbon nanotubes: A CNT-gated CNT-FET / Journal of Nanoscience and Nanotechnology / American Scientific Publishers 6(5) : 1325~1330

[journal] Svensson J / 2008 / A carbon nanotube gated carbon nanotube transistor with 5 ps gate delay / Nanotechnology 19

[journal] Haddon RC / 2004 / Purification and separation of carbon nanotubes / MRS Bull 29 : 252~

[journal] 이동수 / 200501 / Extraction of semiconducting CNTs by repeated dielectrophoretic filtering / Applied Physics A: Materials Science and Processing / Springer Verlag 80(1) : 5~8

[journal] Zheng M / 2003 / DNA-assisted dispersion and separation of carbon nanotubes / Nat Mater 2 : 338~

[journal] Yang CM / 2005 / Selective removal of metallic singlewalled carbon nanotubes with small diameters by using nitric and sulfuric acids / J Phys Chem B 109 : 19242~

[journal] Liu HP / 2011 / Large-scale single-chirality separation of single-wall carbon nanotubes by simple gel chromatography / Nat Commun 2

[journal] Bezryadin A / 1997 / Electrostatic trapping of single conducting nanoparticles between nanoelectrodes / Appl Phys Lett 71 : 1273~

[journal] Amlani I / 2002 / An approach to transport measurements of electronic molecules / Appl Phys Lett 80 : 2761~

[book] Pohl HA / 1978 / Dielectrophoresis: the behavior of neutral matter in nonuniform electric fields / Cambridge University Press

[journal] Hermanson KD / 2001 / Dielectrophoretic assembly of electrically functional microwires from nanoparticle suspensions / Science 294 : 1082~

[journal] Bronikowski MJ / 2001 / Gas-phase production of carbon single-walled nanotubes from carbon monoxide via the HiPco process: a parametric study / J Vac Sci Technol A 19 : 1800~

[journal] O’Connell MJ / 2002 / Band gap fluorescence from individual single-walled carbon nanotubes / Science 297 : 593~

[journal] Krupke R / 2003 / Separation of metallic from semiconducting single-walled carbon nanotubes / Science 301 : 344~

[journal] Krupke R / 2004 / Surface conductance induced dielectrophoresis of semiconducting singlewalled carbon nanotubes / Nano Lett 4 : 1395~

[journal] Benedict LX / 1995 / Static polarizabilities of single- wall carbon nanotubes / Phys Rev B 52 : 8541~

[journal] Ding JW / 2002 / Analytical relation of band gaps to both chirality and diameter of single-wall carbon nanotubes / Phys Rev B 66

[journal] Kataura H / 1999 / Optical properties of single-wall carbon nanotubes / Synth Met 103 : 2555~

[journal] Yu ZH / 2001 / (n, m) structural assignments and chirality dependence in single-wall carbon nanotube Raman scattering / J Phys Chem B 105 : 6831~

[journal] Dresselhaus MS / 2002 / Raman spectroscopy on isolated single wall carbon nanotubes / Carbon 40 : 2043~
KCI Citation (0)

KJC Korea
Journal Central

Statistics

Tools