|
| << previous | next >> |
Journal description
All volumes of the corresponding journal
All issues of the corresponding volume
All articles of the corresponding issues
Details for article 123 of 127 found articles
| Title: |
Visible emission study in nanocrystalline Ba1-xPbxTiO3 and Sr1-xPbxTiO3 systems |
| Author: |
Meng, J. F. Rai, Brajesh K. Katiyar, Ram S. Bhalla, A. S. |
| Appeared in: |
Ferroelectrics letters section |
| Paging: | Volume 23 (1997) nr. 1-2 pages 19-26 |
| Year: |
1997-08-01 |
| Contents: |
Photoluminescence spectroscopy measurements., on Ba1-xPbxTiO3 and Sr1-xPbxTiO3, and with grain sizes of 60 and 30 nm respectively, have been carried out. A single-emission band at ~ 2.0 eV for pure BaTiO3 and at ~ 2.14 eV in the case of pure SrTiO3, had been observed at room temperature. The dependences of the band-position, -intensity, and -width of the visible emission on Pb concentration using the excitation line of 514.5, has been studied and offered a model responsible for the origin of photoluminescence in nanocrystalline BaTiO3 and SrTiO3. The thermal quenching of photoluminescence for pure bulk materials has been discussed. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 123 of 127 found articles
| << previous | next >> |