TITLE

Electron transport properties of irradiated polyimide thin films in single track regime

AUTHOR(S)
Murugaraj, Pandiyan; Mainwaring, David; Siegele, Rainer
PUB. DATE
March 2009
SOURCE
Applied Physics Letters;3/23/2009, Vol. 94 Issue 12, p122101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have prepared a suite of polyimide thin films containing spatially separated one-dimensional conductive-nanowires by ion-beam irradiation exhibiting temperature dependent electrical resistance consistent with thermally activated electron hopping with activation energies about 1 eV arising from localized states spatially distributed along the ion tracks. Dielectric measurements showed the formation of high dielectric constant interphase regions surrounding each ion track generated during the irradiation process, responsible for space-charge accumulation which influences electron transport within the ion tracks. This behavior suggests a role for space-charge effects and dielectric properties in this interphase region in the control of electron transport within single track nanowires.
ACCESSION #
37259591

 

Related Articles

  • Erosion of the GaAs target under irradiation by a high-power pulsed ion beam. Fen’, Li; Remnev, G.; Saltymakov, M.; Gusel’nikov, V.; Makeev, V.; Ivonin, I.; Naiden, E.; Yurchenko, V. // Russian Physics Journal;Jan2007, Vol. 50 Issue 1, p66 

    The results of examination of the GaAs-target erosion under irradiation by a high-power pulsed ion beam are reported. In the experiments, use was made of a high-power pulsed ion source with the following parameters: ion energy — 250 keV, target current density — 350 A/cm2, pulse...

  • Deformation behavior of ion-irradiated polyimide. Kucheyev, S. O.; Felter, T. E.; Anthamatten, M.; Bradby, J. E. // Applied Physics Letters;8/2/2004, Vol. 85 Issue 5, p733 

    We study nanoindentation hardness, Young’s modulus, and tensile strength of polyimide (Kapton H) films bombarded with MeV light ions in the predominantly electronic stopping power regime. Results show that, for all the ion irradiation conditions studied, bombardment increases the hardness...

  • Controlling the size distribution of embedded Au nanoparticles using ion irradiation. Ramjauny, Y.; Rizza, G.; Perruchas, S.; Gacoin, T.; Botha, R. // Journal of Applied Physics;Jun2010, Vol. 107 Issue 10, p104303 

    Samples composted of chemically synthesized Au nanoparticles (NPs) (16.0±2.0 nm) embedded within a planar silica film are used as model system to investigate the evolution of a second phase under irradiation when the temperature and the ion stopping power are changed. Samples are irradiated...

  • Low-resistivity Cu thin-film deposition by self-ion bombardment. Bai, P.; Yang, G.-R.; Lu, T.-M. // Applied Physics Letters;1/8/1990, Vol. 56 Issue 2, p198 

    An anomalous reduction of the thin-film resistivity has been observed in the Cu deposition at room temperature using a partially ionized beam in which the self-ions are used to bombard the substrate surface during growth. A minimum thin-film resistivity of 1.83 μΩ cm has been obtained at 2...

  • Effects of a low-energy ion beam on the growth of titanium nitride layers near the interface of a... Ambramowitz, Peter; Kiene, Michael // Applied Physics Letters;5/31/1999, Vol. 74 Issue 22, p3293 

    Studies the effects of a low-energy ion beam on the growth of titanium nitride layers near the surface of a polyimide. Growth modes used to grow titanium nitride films; Chemical properties of the films; Ability of low-energy nitrogen ions to break the initial titanium/polyimide bonds.

  • Structure and optical properties of Au-polyimide nanocomposite films prepared by ion implantation. Maggioni, G.; Vomiero, A.; Carturan, S.; Scian, C.; Mattei, G.; Bazzan, M.; de Julián Fernández, C.; Mazzoldi, P.; Quaranta, A.; Della Mea, G. // Applied Physics Letters;12/6/2004, Vol. 85 Issue 23, p5712 

    Au-polyimide nanocomposites have been synthesized by implanting different doses of Au+ ions in 100 nm thick films of pyromellitic dianhydride-4,4′ oxydianiline polyimide, prepared by glow discharge vapor deposition polymerization. Unambiguous evidence of Au nanoclusters growth is found...

  • Origin of ultralow permittivity in polyimide/mesoporous silicate nanohybrid films with high resistivity and high breakdown strength. Dang, Zhi-Min; Ma, Lan-Jie; Zha, Jun-Wei; Yao, Sheng-Hong; Xie, Dan; Chen, Qiang; Duan, Xue // Journal of Applied Physics;Feb2009, Vol. 105 Issue 4, pN.PAG 

    Ultralow dielectric permittivity (k=2.58) nanohybrid dielectric film was obtained by dispersing 3.0 wt % mesoporous silicate (MCM-41) particles with nanosize hollow channels into polyimide (PI) polymer. The ultralow k value of the hybrid film can be mainly attributed to the low k value of MCM-41...

  • FOCUSED ION BEAM FABRICATION OF ELECTROCHEMICALLY SYNTHESIZED NANOWIRE-BASED ELECTRODES. VALIZADEH, S. // Anadolu University Journal of Sciences & Technology;2009, Vol. 10 Issue 1, p37 

    A new nanoelectrode device with a gap size of about 30 nm was fabricated using 200 nm in diameter electrochemically synthesized Au nanowire. The gap was created by Focused Ion Beam milling at 1017 ions / cm² and dwell time of 0.2 µs. The I-V characterization of the circuit prior to FIB...

  • Effect of ion beam energy and polymer weight on the thickness of nanowires produced by ion bombardment of polystyrene thin films. Tsukuda, Satoshi; Seki, Shu; Tagawa, Seiichi; Sugimoto, Masaki // Applied Physics Letters;12/5/2005, Vol. 87 Issue 23, p233119 

    Exposure of polystyrene to MeV-order heavy-ion beams produces nanowires by cross-linking along ion tracks. The chemical core of these ion tracks is visualized, and the dependence of the diameter of the nanowires on the linear energy transfer of the ion beam and molecular weight of the polymer...

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