Hydrogen detection based on coloration of anodic tungsten oxide film

Ito, K.; Ohgami, T.
February 1992
Applied Physics Letters;2/24/1992, Vol. 60 Issue 8, p938
Academic Journal
Examines the development of a method for detecting hydrogen using very thin palladium overlayer-anodic oxide film-tungsten sheet structure. Modulation of optical reflectance using the presence of hydrogen in the ambient gas; Employment of the free electron modulation of oxide film optical constants; Requisites of fast hydrogen detection.


Related Articles

  • Thickness dependence of the critical solution temperature of hydrogen in Pd films. Nicolas, M.; Dumoulin, L.; Burger, J. P. // Journal of Applied Physics;11/1/1986, Vol. 60 Issue 9, p3125 

    Determines the isotherms of very thin PdH films. Thickness potential of the films; Characteristics of polycrystalline films; Behavior of films at room temperature.

  • Electrochromic mechanism in a-WO[sub 3-y] thin films. Se-Hee Lee; Cheong, Hyeonsik M. // Applied Physics Letters;1/11/1999, Vol. 74 Issue 2, p242 

    Studies the electrochromic mechanism in amorphous tungsten oxide thin films using Raman scattering measurements. Characteristics of the Raman spectra of as-deposited films; Extra Raman peaks caused by insertion of lithium or hydrogen ions and electrons.

  • Determination of the hydrogen content in an evaporated Pd film by neutron interferometry. Tasaki, Seiji; Kawai, Takeshi; Ebisawa, Toru // Journal of Applied Physics;8/15/1995, Vol. 78 Issue 4, p2398 

    Focuses on the feasibility of a microneutron interferometer (MINI) to determine the hydrogen content in the evaporated palladium film. Thermodynamic properties of palladium (Pd) hydrides; Advantages of determining the hydrogen content in a thin Pd film sanwiched by a pair of multilayer mirrors;...

  • Effects of implanted hydrogen on Pd2Si formation. Paccagnella, A.; Majni, G.; Ottaviani, G.; Della Mea, G. // Applied Physics Letters;10/15/1985, Vol. 47 Issue 8, p806 

    The Pd2Si growth kinetics for evaporated Pd films on (111) Si have been investigated by means of 2 MeV 4He+ backscattering spectrometry for as-deposited and high dose H implanted samples in the 200–250 °C temperature range. The implantation energy has been chosen so that most of H...

  • Photochromic coloration of WO[sub 3] with visible light. Bechinger, C.; Wirth, E. // Applied Physics Letters;5/13/1996, Vol. 68 Issue 20, p2834 

    Examines the photochromic coloration of tungsten oxide with visible light. Optical absorption behavior of tungsten oxide thin films; Relation of the color center formation to the optical creation of electron-hole pairs; Sensitivity of photochromism; Charge carrier injection from the cadmium...

  • Polaron absorption in amorphous tungsten oxide films. Berggren, Lars; Azens, Andris; Niklasson, Gunnar A. // Journal of Applied Physics;8/15/2001, Vol. 90 Issue 4, p1860 

    Amorphous thin films of tungsten oxide were deposited by sputtering onto glass substrates covered by conductive indium-tin oxide. The density and stoichiometry were determined by Rutherford backscattering spectrometry. Lithium ions were intercalated electrochemically into the films. The optical...

  • Properties of tungsten oxide thin films formed by ion-plasma and laser deposition methods for MOSiC-based hydrogen sensors. Fominski, V.; Grigoriev, S.; Romanov, R.; Zuev, V.; Grigoriev, V. // Semiconductors;Mar2012, Vol. 46 Issue 3, p401 

    Thin-film structures based on gas-sensitive tungsten oxide and catalytic platinum are fabricated by room-temperature deposition on a silicon carbide wafer using pulsed laser and ion-plasma methods. Oxide layer annealing in air to 600°C caused the formation of microstructured and...

  • Design of Optical Fiber Hydrogen Sensor Based on Platinum-Doped Tungsten Trioxide Films. ZELUN LI; CHUANDE ZHOU; XIANLING DENG; YIKE TANG // Asian Journal of Chemistry;2014, Vol. 26 Issue 17, p5717 

    Tungsten oxide (WO3) is applied extensively because of its electrochromic, photochromic and gasochromic properties. In this work, a type of optical fiber hydrogen (H2) sensor based on platinum-doped WO3 films was designed. The preparation and hydrogen sensing properties of platinum-doped WO3...

  • Study of the thin-film palladium/hydrogen system by an optical transmittance method. Garcia, Jose A.; Mandelis, A. // Review of Scientific Instruments;Nov96, Vol. 67 Issue 11, p3981 

    Presents a study on a thin-film palladium/hydrogen system using a novel all optical method. Isotherms at room temperature that were obtained for palladium films with different thicknesses; Decrease of the phase transition region; Potential of the optical method for studying the equilibrium and...


Read the Article


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

Try another library?
Sign out of this library

Other Topics