Khanuja, Manika and Varandani, Deepak and Mehta, Bodh R. (2007) Pulse like hydrogen sensing response in Pd nanoparticle layers. Applied Physics Letters, 91 (25). p. 2531. ISSN 00036951
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This study reports an enhanced and unusual pulse like hydrogen sensing response in Pd nanoparticle layers. The faster H adsorption due to increased surface area and closure of conducting paths as a result of lattice expansion on hydride formation are the primary reasons for this. In comparison, Pd thin films exhibit a slow and subdued sensing response because of the overlap of the above two opposing effects and hydrogen induced lattice strain. Temperature independent conductivity in the temperature range of 20–300 K confirms the presence of interparticle gaps in the case of Pd nanoparticle layers.
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
|Divisions:||Faculty of Engineering, Science and Mathematics > School of Physics|
Faculty of Engineering, Science and Mathematics > School of Chemistry
|Deposited On:||27 May 2009 10:44|
|Last Modified:||27 May 2009 10:44|
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