Synthesis, characterization and field emission of single wall carbon nanotubes

Abstract In this work, high-quality SWCNTs were synthesized by pyrolysis of ethanol at 900 °C in a tubular furnace. The catalyst was manufactured by depositing Fe and Mo metal on the surface of sol–gel MgO nanopowder. The SWCNTs produced by sol–gel MgO nanopowder have better yield, higher purity, and smaller diameters than those produced by commercial milling MgO powder. The lengths of SWCNTs are up to several microns with diameters in the range of 0.73–1.40 nm. The extremely small turn-on field Eto (0.01 V/μm) and threshold field Eth (0.07 V/μm) show that the SWCNTs have potential applications in field emission displays (FEDs).

[1]  T. Ebbesen,et al.  Exceptionally high Young's modulus observed for individual carbon nanotubes , 1996, Nature.

[2]  Kong,et al.  Nanotube molecular wires as chemical sensors , 2000, Science.

[3]  Y. C. Kim,et al.  Vertical alignment of printed carbon nanotubes by multiple field emission cycles , 2004 .

[4]  L. Forró,et al.  Field emission from carbon nanotubes: perspectives for applications and clues to the emission mechanism , 1999 .

[5]  Alan M. Cassell,et al.  Synthesis of individual single-walled carbon nanotubes on patterned silicon wafers , 1998, Nature.

[6]  B. Cullity,et al.  Elements of X-ray diffraction , 1957 .

[7]  O. Zhou,et al.  Very large current density from carbon nanotube field emitters , 1999, International Electron Devices Meeting 1999. Technical Digest (Cat. No.99CH36318).

[8]  Charles M. Lieber,et al.  Structural ( n, m) determination of isolated single-wall carbon nanotubes by resonant Raman scattering. , 2001, Physical review letters.

[9]  Chong-Yun Park,et al.  Large-scale synthesis of high-quality single-walled carbon nanotubes by catalytic decomposition of ethylene , 2004 .

[10]  Szu-Hsueh Lai,et al.  Electron field emission from various morphologies of fluorinated amorphous carbon nanostructures , 2004 .

[11]  Janos B. Nagy,et al.  Large-scale synthesis of single-wall carbon nanotubes by catalytic chemical vapor deposition (CCVD) method , 2000 .

[12]  H. Dai,et al.  Self-oriented regular arrays of carbon nanotubes and their field emission properties , 1999, Science.

[13]  Shui-Tong Lee,et al.  Very low-field emission from aligned and opened carbon nanotube arrays , 2001 .

[14]  T. Ichihashi,et al.  Single-shell carbon nanotubes of 1-nm diameter , 1993, Nature.

[15]  S. Tsai,et al.  Tubes on tube—a novel form of aligned carbon nanotubes , 2002 .

[16]  K. Ishibashi,et al.  Fabrication of luminescent carbon nanotubes , 2006 .

[17]  Masamichi Kohno,et al.  Low-temperature synthesis of high-purity single-walled carbon nanotubes from alcohol , 2002 .

[18]  Kenneth A. Dean,et al.  The environmental stability of field emission from single-walled carbon nanotubes , 1999 .

[19]  László Forró,et al.  Field emission from single-wall carbon nanotube films , 1998 .

[20]  Yunqi Liu,et al.  Controlled growth of single-walled carbon nanotubes at atmospheric pressure by catalytic decomposition of ethanol and an efficient purification method , 2007 .

[21]  Steven G. Louie,et al.  Broken symmetry and pseudogaps in ropes of carbon nanotubes , 1998, Nature.

[22]  M. Dresselhaus,et al.  Large-scale and low-cost synthesis of single-walled carbon nanotubes by the catalytic pyrolysis of hydrocarbons , 1998 .

[23]  Lin-Chi Chen,et al.  High Performance of low electrocatalysts loading on CNT directly grown on carbon cloth for DMFC , 2007 .

[24]  Vinayak P. Dravid,et al.  Fabrication and properties of heteroepitaxial magnetite (Fe3O4) tunnel junctions , 1998 .

[25]  C. Dekker,et al.  Logic Circuits with Carbon Nanotube Transistors , 2001, Science.

[26]  R. Gómez,et al.  Crystalline Structure of MgO Prepared by the Sol-Gel Technique with Different Hydrolysis Catalysts , 1995 .

[27]  H. Shih,et al.  Large-Area Single Wall Carbon Nanotubes: Synthesis, Characterization, and Electron Field Emission , 2007 .

[28]  Young Hee Lee,et al.  Fully sealed, high-brightness carbon-nanotube field-emission display , 1999 .