TITLE

Gap-gate field effect gas sensing device for chemical image generation

AUTHOR(S)
Filippini, D.; Lundström, I.; Uchida, H.
PUB. DATE
April 2004
SOURCE
Applied Physics Letters;4/12/2004, Vol. 84 Issue 15, p2946
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A field effect chemically sensitive device, specially suited for the generation of scanning light pulse technique chemical images, is demonstrated. The present approach provides a complete separation between the required electrical biasing and chemical sensing functions inherently coupled in all previous systems. The concept is demonstrated by sensing hydrogen with insensitive biasing electrodes, composing a so-called gap gate, combined with discontinuous palladium clusters usually unsuitable for sensing in conventional arrangements. A simple one-dimensional model is used to explain the observed behavior. © 2004 American Institute of Physics.
ACCESSION #
12754083

 

Related Articles

  • Ab initio study of charge transport of hydrogen functionalized palladium wires. Zhao, Zhen; Dunietz, Barry D. // Journal of Chemical Physics;7/14/2008, Vol. 129 Issue 2, p021101 

    We present ab initio calculations of transport properties of palladium wires in the presence of hydrogen. Detailed investigations have been conducted with a pure palladium wire and with opening a gap inside the wire in which the transition between point contact regime and tunneling regime...

  • Electrochemical sensors based on graphene materials. Gan, Tian; Hu, Shengshui // Microchimica Acta;Sep2011, Vol. 175 Issue 1/2, p1 

    Single-layered graphene, emerging as a true two-dimensional nanomaterial, has tremendous potential for electrochemical catalysis and biosensing as a novel electrode material. Considering the excellent properties of graphene, such as large surface-to-volume ratio, high conductivity and electron...

  • A sensitive amperometric hydrogen peroxide sensor based on thionin/EDTA/carbon nanotubes–chitosan composite film modified electrode. Keying Zhang; Li Zhang; Jigui Xu; Cong Wang; Tao Geng; Hongyan Wang; Jun Zhu // Microchimica Acta;Oct2010, Vol. 171 Issue 1/2, p139 

    sensitive amperometric sensor has been constructed for the determination of hydrogen peroxide (HP). It is based on a glassy carbon electrode modified with a composite made from thionin, EDTA, multiwalled carbon nanotubes, and chitosan. Thionin was covalently immobilized on the surface of the...

  • Nanogap formation by palladium hydrogenation for surface conduction electron emitters fabrication. Tsai, Chih-Hao; Pan, Fu-Ming; Chen, Kuan-Jung; Wei, Cheng-Yang; Liu, Mei; Mo, Chi-Neng // Applied Physics Letters;4/16/2007, Vol. 90 Issue 16, p163115 

    Nanometer-scale gaps in Pd strips are obtained by hydrogen absorption under high pressure treatment. The resulting lattice constant increase due to the Pd phase transformation after hydrogen uptake results in a large compressive stress on the thin Pd films. Under proper geometric arrangement of...

  • Microfabricated Reference Electrodes and their Biosensing Applications. Shinwari, M. Waleed; Zhitomirsky, David; Deen, Imran A.; Selvaganapathy, P. R.; Deen, M. Jamal; Landheer, D. // Sensors (14248220);2010, Vol. 10 Issue 3, p1679 

    Over the past two decades, there has been an increasing trend towards miniaturization of both biological and chemical sensors and their integration with miniaturized sample pre-processing and analysis systems. These miniaturized lab-on-chip devices have several functional advantages including...

  • Voltammetric behavior and the determination of quercetin at a flowerlike CoO nanoparticles modified glassy carbon electrode. MingYan Wang; DongEn Zhang; ZhiWei Tong; XingYou Xu; XuJie Yang // Journal of Applied Electrochemistry;Feb2011, Vol. 41 Issue 2, p189 

    Flowerlike CoO nanoparticles were used as a modifier on the glassy carbon electrode to fabricate a quercetin (Qu) sensor. The morphology and crystallinity of the prepared CoO material were investigated by scanning electron microscopy and X-ray diffraction. Electrochemical behavior of Qu at the...

  • Electrochemical fabrication of Rh-Pd particles and electrocatalytic applications. Rajkumar, Muniyandi; Thiagarajan, Soundappan; Shen-Ming Chen // Journal of Applied Electrochemistry;Jun2011, Vol. 41 Issue 6, p663 

    Electrochemical deposition method was employed for the fabrication of rhodium-palladium (Rh-Pd) particles on the glassy carbon electrode (GCE) and indium tin oxide (ITO) electrode surface. Surface morphological analysis of Rh-Pd film has been carried out using scanning electron microscopy (SEM)...

  • Palladium as electrode in DNA sequencing. Chen, Xiang // Applied Physics Letters;8/5/2013, Vol. 103 Issue 6, p063306 

    We construct a molecular junction comprising two identical 'reader' molecules that are each linked on one end to a DNA single base via hydrogen bonds and on the other end to a palladium electrode. The structure of the junction is thus palladium-reader-base-reader-palladium. The palladium-reader...

  • Introduction to polymer-based solid-contact ion-selective electrodes-basic concepts, practical considerations, and current research topics. Bieg, Christoph; Fuchsberger, Kai; Stelzle, Martin // Analytical & Bioanalytical Chemistry;Jan2017, Vol. 409 Issue 1, p45 

    This review aims at providing an introductory overview for researchers new to the field of ion-selective electrodes. Both state of the art technology and novel developments towards solid-contact reference (sc-RE) and solid-contact ion selective electrodes (sc-ISE) are discussed. This technology...

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