Y2O2S : Eu31 nanocrystals—synthesis and luminescent properties
IR@CECRI: CSIR-Central Electrochemical Research Institute, Karaikudi
View Archive Info| Field | Value | |
| Title |
Y2O2S : Eu31 nanocrystals—synthesis and luminescent properties
|
|
| Creator |
Dhanaraj, J.
Jagannathan, R. Trivedi, D.C. |
|
| Subject |
Electrochemical Materials Science
|
|
| Description |
Luminescent Y2O2S : Eu31 nanoceramics having an average particle size of 20 nm has been prepared through a
gel–polymer thermolysis process employing a urea–formaldehyde resin. In this nanocrystalline system, large
blue shifts (in relation to the bulk system) of y5000 cm21 and y2000 cm21 in the photoluminescence
excitation bands corresponding to the excitonic region and the Eu31–ligand charge transfer region respectively
have been observed. These may be explained by considering possible size dependent changes in optical
electronegativity and quantum confinement effects occurring in this large bandgap semiconductor system.
|
|
| Publisher |
The Royal Society of Chemistry
|
|
| Date |
2003
|
|
| Type |
Article
PeerReviewed |
|
| Format |
application/pdf
|
|
| Identifier |
http://cecri.csircentral.net/880/1/39-2003.pdf
Dhanaraj, J. and Jagannathan, R. and Trivedi, D.C. (2003) Y2O2S : Eu31 nanocrystals—synthesis and luminescent properties. Journal of Materials Chemistry, 13. pp. 1778-1782. ISSN 0959-9428 |
|
| Relation |
http://cecri.csircentral.net/880/
|
|