| Autor: |
Chizhik AM; III. Institute of Physics, Georg August University, 37077 Göttingen, Germany. jenderl@gwdg.de alexey.chizhik@phys.uni-goettingen.de., Tarpani L, Latterini L, Gregor I, Enderlein J, Chizhik AI |
| Jazyk: |
angličtina |
| Zdroj: |
Physical chemistry chemical physics : PCCP [Phys Chem Chem Phys] 2015 Jun 14; Vol. 17 (22), pp. 14994-5000. |
| DOI: |
10.1039/c5cp01371b |
| Abstrakt: |
We present the results of a comprehensive photoluminescence study of defect centres in single SiO2 nanoparticles. We show that the photo-physical properties of the luminescent centres strongly resemble those of single dye molecules. However, these properties exhibit a large variability from particle to particle due to the different local chemical environment around each centre of each particle. This variability provides new insight into the complex photo-physics of single quantum emitters embedded into a random chemical environment. Moreover, a better understanding of the fundamental mechanism of the photoluminescence of defect centres in SiO2 structure is paramount for their application as white-light sources, non-toxic labels for bio-imaging, or for combining them with metallic and semiconductor nanostructures. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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