Nano Archive

Hydrogen-induced electrical and optical switching in Pd capped Pr nanoparticle layers

Kala, Shubhra and Mehta, B. R. (2008) Hydrogen-induced electrical and optical switching in Pd capped Pr nanoparticle layers. Bulletin of Materials Science, 31 (3). 225-231.

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Official URL: http://www.springerlink.com/content/u5h71767337045...

Abstract

In this study, modification in the properties of hydrogen-induced switchable mirror based on Pr nanoparticle layers is reported. The reversible changes in hydrogen-induced electrical and optical properties of Pd capped Pr nanoparticle layers have been studied as a function of hydrogenation time and compared with the conventional device based on Pd capped Pr thin films. Faster electrical and optical response, higher optical contrast and presence of single absorption edge corresponding to Pr trihydride state in hydrogen loaded state have been observed in the case of nanoparticle layers. The improvement in the electrical and optical properties have been explained in terms of blue shift in the absorption edge due to quantum confinement effect, larger number of interparticle boundaries, presence of defects, loose adhesion to the substrate and enhanced surface to volume atom ratio at nanodimension.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanostructured materials
Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:5047
Deposited By:JNCASR
Deposited On:27 May 2009 11:01
Last Modified:27 May 2009 11:01

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