Achievement of controlled resistive response of nanogapped palladium film to hydrogen

Zhao, M.; Wong, M. H.

doi:10.1063/1.4927394

Title: Achievement of controlled resistive response of nanogapped palladium film to hydrogen

Full Record
Other Related Research

Abstract

Palladium (Pd) film containing nanogaps of well controlled dimension was fabricated on a Si wafer having a high-aspect-ratio micropillar. The Pd film was arranged to experience hydrogen (H{sub 2})-induced volume expansion. (i) If the nanogap is kept open, its width is narrowed down. A discharge current was generated to give a strong, fast, and repeatable on-off type resistive switching response. (ii) If the nanogap is closed, the cross section of the conduction path varies to give continuous H{sub 2}-concentration dependent resistive response. The influence of stresses and related physical mechanisms are discussed.

Authors:

Zhao, M. ^[1]; Wong, M. H.

Research Center for Solid State Physics and Materials, School of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou 215009 (China)

Publication Date:: Mon Jul 20 00:00:00 EDT 2015

OSTI Identifier:: 22486357

Resource Type:: Journal Article

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 107; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ASPECT RATIO; CROSS SECTIONS; CURRENTS; EXPANSION; FILMS; HYDROGEN; NANOMATERIALS; PALLADIUM; STRESSES

Citation Formats


                    Zhao, M., Wong, M. H., and Ong, C. W., E-mail: c.w.ong@polyu.edu.hk. Achievement of controlled resistive response of nanogapped palladium film to hydrogen.  United States: N. p., 2015. 
        Web.  doi:10.1063/1.4927394.

Copy to clipboard


                    Zhao, M., Wong, M. H., & Ong, C. W., E-mail: c.w.ong@polyu.edu.hk. Achievement of controlled resistive response of nanogapped palladium film to hydrogen.  United States.  https://doi.org/10.1063/1.4927394

Copy to clipboard


                    Zhao, M., Wong, M. H., and Ong, C. W., E-mail: c.w.ong@polyu.edu.hk. 2015.  
        "Achievement of controlled resistive response of nanogapped palladium film to hydrogen".  United States.  https://doi.org/10.1063/1.4927394.

Copy to clipboard


                    
@article{osti_22486357,

  title        = {Achievement of controlled resistive response of nanogapped palladium film to hydrogen},

  author       = {Zhao, M. and Wong, M. H. and Ong, C. W., E-mail: c.w.ong@polyu.edu.hk},

  abstractNote = {Palladium (Pd) film containing nanogaps of well controlled dimension was fabricated on a Si wafer having a high-aspect-ratio micropillar. The Pd film was arranged to experience hydrogen (H{sub 2})-induced volume expansion. (i) If the nanogap is kept open, its width is narrowed down. A discharge current was generated to give a strong, fast, and repeatable on-off type resistive switching response. (ii) If the nanogap is closed, the cross section of the conduction path varies to give continuous H{sub 2}-concentration dependent resistive response. The influence of stresses and related physical mechanisms are discussed.},

  doi          = {10.1063/1.4927394},

  url          = {https://www.osti.gov/biblio/22486357},
  journal      = {Applied Physics Letters},

  issn         = {0003-6951},

  number       = 3,

  volume       = 107,

  place        = {United States},

  year         = {Mon Jul 20 00:00:00 EDT 2015},

  month        = {Mon Jul 20 00:00:00 EDT 2015}

}

Copy to clipboard

Journal Article:

https://doi.org/10.1063/1.4927394

Other availability

Find in Google Scholar

Search WorldCat to find libraries that may hold this journal

Save / Share:

Export Metadata

Save to My Library

Similar records in OSTI.GOV collections:

Hydrogen response of porous palladium nano-films

Journal Article Barman, P.; Hazra, S. - AIP Conference Proceedings

Palladium nanoparticles were synthesized by reducing sodium tetrachloropalladate at 100°C using Ethylene Glycol as reducing agent. The nanoparticles were characterized by TEM (Transmission Electron Microscopy), and optical absorption spectroscopy. The average particle size (<10 nm) was obtained from TEM images, and the palladium SPR (Surface Plasmon Resonance) absorption maxima was observed at ∼220 nm. The porous sensing films were prepared by drying the nanoparticles precipitate on cleaned glass substrates. The high porosity of these films, as revealed by Atomic Force Microscopy (AFM) studies, made these films suitable for hydrogen sensor applications. The resistance of the films, measured by making silver paste contactsmore »« less
https://doi.org/10.1063/1.4929217
In Situ Potentiometric, Resistance, and Dilatometric Measurements of Palladium Electrodes During Repeated Electrochemical Hydrogen Absorption

Journal Article Numata, Hiroo; Ohno, Izumi - Fusion Science and Technology

The physicochemical properties of the Pd-H system were studied by in situ potentiometric, resistance, and dilatometric measurements in each of three applied pulse modes, A, B, and C, and repeated H absorption and desorption. Potential, resistance ratio, and an increase in dilation ({delta}l/l{sub 0}) were measured simultaneously after H equilibrium was attained with the Pd electrode. During continuous absorption, structural phase transition ({alpha} [right arrow] {beta}) and void formation occurred, and the values of the H/Pd ratio in the limiting {alpha} phase, in the {alpha} + {beta} phase coexistence, and in the transition and the {beta}+voids coexistence regions are consistentmore »« less
Hydrogen responses of ultrathin Pd films and nanowire networks with a Ti buffer layer.

Journal Article Zeng, X; Wang, Y; Xiao, Z; ... - Journal of Materials Science

We report on hydrogen responses of ultrathin films and nanowire networks of palladium on titanium buffered silicon substrates and filtration membranes, respectively. We found that in both systems signatures such as retarding responses and saturation of the resistance changes at high hydrogen concentrations associated with the transition from Pd/H solid solution to Pd hydride diminish with decreasing the thickness of the palladium layer from 7 to 2 nm. Our results not only reveal a new way to suppress the phase transition in Pd/H system but also provide an alternative approach to achieve fast and sensitive hydrogen sensors with a widemore » concentration detection range.« less
https://doi.org/10.1007/s10853-012-6601-1
Structural tuning of nanogaps using electromigration induced by field emission current with bipolar biasing

Journal Article Yagi, Mamiko; Ito, Mitsuki; Shirakashi, Jun-ichi - Journal of Applied Physics

We report a new method for fabrication of Ni nanogaps based on electromigration induced by a field emission current. This method is called “activation” and is demonstrated here using a current source with alternately reversing polarities. The activation procedure with alternating current bias, in which the current source polarity alternates between positive and negative bias conditions, is performed with planar Ni nanogaps defined on SiO{sub 2}/Si substrates at room temperature. During negative biasing, a Fowler-Nordheim field emission current flows from the source (cathode) to the drain (anode) electrode. The Ni atoms at the tip of the drain electrode are thusmore »« less
https://doi.org/10.1063/1.4923347
Hydrogen permeability and stability of palladium films in a high pressure reactor

Journal Article Park, C.; Lee, T.; Dorris, S.; ... - Materials Science and Engineering. B, Solid-State Materials for Advanced Technology

Palladium (Pd) thin films were fabricated by colloidal spray deposition (CSD) on substrates of porous yttrium stabilized zirconium oxide (YSZ). The films were sintered at 1140–1160 °C for 2–3 h in argon and had thickness of 5–11 μm. The hydrogen (H₂) permeation flux for the Pd film was measured with simulated feed gases (90% H₂/He, syn-gas/steam, or syn-gas/steam with H₂S) flowing on the film side and sweep gas (Ar) flowing on the substrate side. Here, the hydrogen flux with the Pd film was obtained by adjusting the flow rate and pressure of the gas. Hydrogen flux values of 121–173 cm³more »« less
https://doi.org/10.1016/j.mseb.2021.115230

Full Text Available

Similar Records