Haldar, Krishna Kanta ; Patra, Amitava (2009) Fluorescence enhancement and quenching of Eu3+ ions by Au–ZnO core-shell and Au nanoparticles Applied Physics Letters, 95 (6). Article ID 063103. ISSN 0003-6951
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Official URL: http://aip.scitation.org/doi/abs/10.1063/1.3204012...
Related URL: http://dx.doi.org/10.1063/1.3204012
Abstract
We investigate the enhancement and quenching of Eu3+ emission in presence of Au–ZnO core-shell nanoparticles and Au nanoparticles. The quenching of Eu3+-emission in presence of Au nanoparticles is caused by change of nonradiative rate due to energy transfer. However, the enhancement of Eu3+-emission in presence of Au–ZnO core-shell nanoparticles is due to local field, which modifies the radiative and nonradiative rate. Enhancement and quenching of Eu3+ emission reflect the change in environment of Eu3+ from Au nanoparticles to Au–ZnO core-shell nanoparticles which is confirmed by the Judd–Ofelt parameter (Ω2) analysis.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to AIP Publishing. |
| ID Code: | 104774 |
| Deposited On: | 01 Dec 2017 11:03 |
| Last Modified: | 01 Dec 2017 11:03 |
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