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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