Abstract
A detailed elastic recoil detection analysis using 40 MeV 28Si 5+ ions has been carried out to study the changes in the H concentration and concentration profiles during the hydrogenation/ dehydrogenation process in polycrystalline and nanoparticle Gd layers formed using vacuum evaporation and inert gas evaporation techniques, respectively. Nanoparticle sample exhibits a larger difference in the [H]/[Gd] values (2.9 and 1.7) in comparison to polycrystalline sample (2.4 and 2.0) in the loaded and deloaded states. Hydrogenation/dehydrogenation activity is restricted to the top portion in case of polycrystalline sample. In contrast to this, size induced structural transformation; enhanced surface area and the presence of large number of inter particle boundaries due to nanoparticle character result in the complete Gd layer becoming active during switching.
| Language | English |
|---|---|
| Pages | 1728-1733 |
| Number of pages | 6 |
| Journal | Journal of Nanoscience and Nanotechnology |
| Volume | 5 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 31 Oct 2005 |
Fingerprint
Keywords
- ERDA
- Gd nanoparticles
- hydrogen concentration
- switchable mirror
Cite this
}
Effect of nanoparticle nature on hydrogen concentration profiles and improved switching characteristics in Gd switchable mirrors. / Aruna, I.; Mehta, B. R.; Malhotra, L. K.; Khan, S. A.; Avasthi, D. K.
In: Journal of Nanoscience and Nanotechnology, Vol. 5, No. 10, 31.10.2005, p. 1728-1733.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of nanoparticle nature on hydrogen concentration profiles and improved switching characteristics in Gd switchable mirrors
AU - Aruna, I.
AU - Mehta, B. R.
AU - Malhotra, L. K.
AU - Khan, S. A.
AU - Avasthi, D. K.
PY - 2005/10/31
Y1 - 2005/10/31
N2 - A detailed elastic recoil detection analysis using 40 MeV 28Si 5+ ions has been carried out to study the changes in the H concentration and concentration profiles during the hydrogenation/ dehydrogenation process in polycrystalline and nanoparticle Gd layers formed using vacuum evaporation and inert gas evaporation techniques, respectively. Nanoparticle sample exhibits a larger difference in the [H]/[Gd] values (2.9 and 1.7) in comparison to polycrystalline sample (2.4 and 2.0) in the loaded and deloaded states. Hydrogenation/dehydrogenation activity is restricted to the top portion in case of polycrystalline sample. In contrast to this, size induced structural transformation; enhanced surface area and the presence of large number of inter particle boundaries due to nanoparticle character result in the complete Gd layer becoming active during switching.
AB - A detailed elastic recoil detection analysis using 40 MeV 28Si 5+ ions has been carried out to study the changes in the H concentration and concentration profiles during the hydrogenation/ dehydrogenation process in polycrystalline and nanoparticle Gd layers formed using vacuum evaporation and inert gas evaporation techniques, respectively. Nanoparticle sample exhibits a larger difference in the [H]/[Gd] values (2.9 and 1.7) in comparison to polycrystalline sample (2.4 and 2.0) in the loaded and deloaded states. Hydrogenation/dehydrogenation activity is restricted to the top portion in case of polycrystalline sample. In contrast to this, size induced structural transformation; enhanced surface area and the presence of large number of inter particle boundaries due to nanoparticle character result in the complete Gd layer becoming active during switching.
KW - ERDA
KW - Gd nanoparticles
KW - hydrogen concentration
KW - switchable mirror
UR - http://www.scopus.com/inward/record.url?scp=32944454798&partnerID=8YFLogxK
U2 - 10.1166/jnn.2005.408
DO - 10.1166/jnn.2005.408
M3 - Article
VL - 5
SP - 1728
EP - 1733
JO - Journal of Nanoscience and Nanotechnology
T2 - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
SN - 1533-4880
IS - 10
ER -