TITLE

A study on the modulation of the electrical transport by mechanical straining of individual titanium dioxide nanotube

AUTHOR(S)
Asthana, A.; Shokuhfar, T.; Gao, Q.; Heiden, P.; Friedrich, C.; Yassar, R. S.
PUB. DATE
August 2010
SOURCE
Applied Physics Letters;8/16/2010, Vol. 97 Issue 7, p072107
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report here, the deformation driven modulation of the electrical transport properties of an individual TiO2 nanotube via in situ transmission electron microscopy (TEM) using a scanning tunneling microscopy system. The current-voltage characteristics of each individual TiO2 nanotube revealed that under bending deformation within the elastic limit, the electrical conductivity of a TiO2 nanotube can be enhanced. High resolution TEM and electron diffraction pattern reveal that TiO2 nanotubes have tetragonal structure (a=0.378 nm, c=0.9513 nm, I41/amd). Analysis based on a metal-semiconductor-metal model suggests that in-shell, surface defect-driven conduction modes and electron–phonon coupling effect are responsible for the modulated semiconducting behaviors.
ACCESSION #
52997962

 

Related Articles

  • Structural study of nitrogen-doping effects in bamboo-shaped multiwalled carbon nanotubes. Jae Won Jang; Cheol Eui Lee; Seung Chul Lyu, Kanti; Tae Jae Lee; Cheol Jin Lee // Applied Physics Letters;4/12/2004, Vol. 84 Issue 15, p2877 

    We have investigated nitrogen doping effects on the structure and crystallinity of bamboo-shaped multiwalled carbon nanotubes (BS-MWNTs) by means of x-ray photoemission spectroscopy (XPS) and transmission electron microscopy. By controlling the NH3/C2H2 flow ratio during the chemical vapor...

  • Transmission electron microscopic study of multiwalled carbon nanotubes. Baitinger, E.; Vekesser, N.; Kovalev, I.; Slobodchikov, O.; Viktorov, V. // Inorganic Materials;Jun2011, Vol. 47 Issue 6, p614 

    Multiwalled carbon nanotubes have been studied by transmission electron microscopy, selectedarea electron diffraction, and transmission electron energy loss spectroscopy (EELS). The results demonstrate that the walls of carbon nanotubes consist of graphite-like layers with an increased...

  • Preparation of copper coated carbon nanotubes by decomposition of Cu(II)acetylacetonate in hydrogen atmosphere. Guo Wenli; Zhang Yue; Liang Tongxiang // Journal of Materials Science;Sep2006, Vol. 41 Issue 17, p5462 

    In this paper, copper coated carbon nanotubes (CNTs) was synthesized by decomposition of Cu(II) acetylacetonate (Cu(acac)2) in hydrogen atmosphere at 300 °C. The thickness of the copper coating was in nanoscale according to scanning electron microscopy (SEM) and transmission electron...

  • Hydrothermal synthesis and properties of titania nanotubes doped with Fe, Ni, Zn, Cd, Mn. Kulish, M. R.; Struzhko, V. L.; Bryksa, V. P.; Murashko, A. V.; Il'in, V. G. // Semiconductor Physics, Quantum Electronics & Optoelectronics;2011, Vol. 14 Issue 1, p21 

    Fe/TiO2, Mn/TiO2, Zn/TiO2, Cd/TiO2, Ni/TiO2 titania nanotubes were synthesized by the method of direct hydrothermal synthesis. Their properties have been investigated using X-ray phase analysis and X-ray fluorescent analysis, high-resolution transmission electron microscopy, luminescent...

  • Preparation, Characterization of Sulfur-Doped Nanosized TiO and Photocatalytic Degradation of Methylene Blue Under Visible Light. Thiam Peng Ang; Jia Yan Law; Yi-Fan Han // Catalysis Letters;Oct2010, Vol. 139 Issue 1/2, p77 

    Sulfur-doped TiO catalysts were prepared by a mechanochemical method. The prepared catalysts exhibited photocatalytic activity in methylene blue degradation under visible light. The catalyst structure has been characterized using UV-visible spectroscopy, X-ray photoelectron spectroscopy (XPS),...

  • Evolution of nanostructures of anatase TiO thin films grown on (001) LaAlO. Ciancio, Regina; Vittadini, Andrea; Selloni, Annabella; Arpaia, Riccardo; Aruta, Carmela; Miletto Granozio, Fabio; Scotti di Uccio, Umberto; Rossi, Giorgio; Carlino, Elvio // Journal of Nanoparticle Research;Jun2013, Vol. 15 Issue 6, p1 

    Combining reflection high-energy electron diffraction, high-resolution transmission electron microscopy, and high-angle annular dark field scanning transmission electron microscopy we unveil the existence of a peculiar transition from a three-dimensional to a two-dimensional growth mode in...

  • Failure of exchange-biased low resistance magnetic tunneling junctions upon thermal treatment. Lee, J. H.; Jeong, H. D.; Kyung, H.; Yoon, C. S.; Kim, C. K.; Park, B. G.; Lee, T. D. // Journal of Applied Physics;1/1/2002, Vol. 91 Issue 1, p217 

    Transmission electron microscopy (TEM) and Rutherford backscattering spectroscopy (RBS) were used to characterize low resistance (100–1000 Ω μm2) tunneling junctions consisting of Ta/NiFe/Cu/NiFe/IrMn/CoFe/Al (6.6 and 7.7 Å)–oxide/CoFe/NiFe/Ta multilayers after annealing...

  • CdS Nanotubes and Y-Branched Nanochannels in AAM Fabricated by a Double Diffusion Route. Yong Lv; Weifeng Liu; Jianming Huang; Lianzeng Yao // Journal of Nanomaterials;2011, p1 

    Polycrystalline CdS nanotubes and a novel partition nanostructure were prepared in an anodic alumina membrane (AAM) template using a double diffusion method at room temperature. Transmission electron microscopy (TEM), selected area electron diffraction (SAED) and energy dispersive X-ray...

  • NO2 gas adsorption on titania-based nanotubes. Arcčon, Denis; Umek, Polona; Cevc, Pavel; Jesih, Adolf; Ewels, Christopher Paul; Gloter, Alexandre // AIP Conference Proceedings;2005, Vol. 786 Issue 1, p335 

    TiO2-based nanotubes were prepared using a hydrothermal technique and then investigated by high-resolution TEM. Nanotubes were found to be hollow scrolls with a typical outer diameter of about 10 nm, inner diameter 4–5 nm and length of several hundred nm. The surface of nanotubes is found...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics