Silicon nanocrystals dispersed in water: Photosensitizers for molecular oxygen
Reference:
Goller, B., Polisski, S., Wiggers, H. and Kovalev, D., 2010. Silicon nanocrystals dispersed in water: Photosensitizers for molecular oxygen. Applied Physics Letters, 96 (21), 211901.
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Official URL:
http://dx.doi.org/10.1063/1.3432349
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Abstract
We report on the synthesis of freestanding silicon spheres having sizes in the range of 3-10 nm. As-prepared luminescent silicon nanocrystals have H-passivated surface. Therefore, energy transfer from excitons confined in Si nanocrystals to oxygen molecules is found to be efficient. It is demonstrated that a termination of silicon nanocrystal H-passivated hydrophobic surface by lipids provides their water solubility. We found that this procedure preserves photosensitizing ability of silicon nanocrystals. Therefore, this material system can potentially be employed for a variety of biomedical applications.
Details
Item Type | Articles | ||||
Creators | Goller, B., Polisski, S., Wiggers, H. and Kovalev, D. | ||||
DOI | 10.1063/1.3432349 | ||||
Related URLs |
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Uncontrolled Keywords | luminescence,nanostructured materials,photochemistry,silicon | ||||
Departments | Faculty of Science > Physics | ||||
Refereed | No | ||||
Status | Published | ||||
ID Code | 19347 |
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