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Svrcek, V, Mariotti, Davide, Shibata, Y and Kondo, M (2010) A hybrid heterojunction based on fullerenes and surfactant-free, self-assembled, closely packed silicon nanocrystals. Journal of Physics D: Applied Physics, 43 (41). p. 415402. [Journal article]
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URL: http://stacks.iop.org/0022-3727/43/i=41/a=415402
DOI: 10.1088/0022-3727/43/41/415402
Abstract
We demonstrate that nanosecond-pulsed laser chemistry in water leads to closely packed and stable luminescent assemblies of silicon nanocrystals (SiNCs) that can be electronically coupled with fullerenes (C 60 ) without any additional surfactant or catalyst. We show that the fragmentation time in water determines the photoluminescence (PL) intensity (>40%) and redshifts the PL maxima (45 nm) of the SiNCs. Heterojunction solar cells made out of these laser-produced self-assemblies of SiNCs and C 60 show photovoltaic action with increased quantum efficiency in the region where the absorption of SiNCs appears.
| Item Type: | Journal article |
|---|---|
| Faculties and Schools: | Faculty of Computing & Engineering Faculty of Computing & Engineering > School of Engineering |
| Research Institutes and Groups: | Engineering Research Institute Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC) |
| ID Code: | 15901 |
| Deposited By: | Dr Davide Mariotti |
| Deposited On: | 12 Oct 2010 10:21 |
| Last Modified: | 18 Dec 2012 13:14 |
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