Patra, A. ; Baker, Gary A. ; Baker, Sheila N. (2004) Synthesis and luminescence study of Eu3+ in Zn2SiO4 nanocrystals Optical Materials, 27 (1). pp. 15-20. ISSN 0925-3467
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.optmat.2004.01.003
Abstract
The sol–emulsion–gel method is used for the preparation of Eu3+ doped Zn2SiO4 nanoparticles. The luminescence spectra at 613 nm (5D0 → 7F2) and lifetime of the excited state of Eu3+ ions doped Zn2SiO4 nanocrystals are also found to be sensitive to the concentration (0.25–2.5 mol%) of ions. In case of 1000 °C annealed sample (0.25 mol% Eu3+) showed the single component decay of 2.02 ms. However, with increasing the concentration the decay is biexponential. We attribute this to an inter-ion exchange interaction wherein the more rapid decay is due to pair or cluster formation and the longer-lived emission originates from isolated ions within the insulating host.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 104860 |
| Deposited On: | 01 Dec 2017 11:06 |
| Last Modified: | 01 Dec 2017 11:06 |
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