Research output per year
Research output per year
Cecilia Zaza, Ianina L. Violi, Julián Gargiulo, Germán Chiarelli, Ludmilla Schumacher, Jurij Jakobi, Jorge Olmos-Trigo, Emiliano Cortes, Matthias König, Stephan Barcikowski, Sebastian Schlücker, Juan José Sáenz, Stefan A. Maier, Fernando D. Stefani
Research output: Contribution to journal › Article › Research › peer-review
Silicon nanoparticles possess unique size-dependent optical properties due to their strong electric and magnetic resonances in the visible range. However, their widespread application has been limited, in comparison with other (e.g., metallic) nanoparticles, because their preparation on monodisperse colloids remains challenging. Exploiting the unique properties of Si nanoparticles in nano- and microdevices calls for methods able to sort and organize them from a colloidal suspension onto specific positions of solid substrates with nanometric precision. We demonstrate that surfactant-free silicon nanoparticles of a predefined and narrow (σ < 10 nm) size range can be selectively immobilized on a substrate by optical printing from a polydisperse colloidal suspension. The size selectivity is based on differential optical forces that can be applied on nanoparticles of different sizes by tuning the light wavelength to the size-dependent magnetic dipolar resonance of the nanoparticles.
Original language | English |
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Pages (from-to) | 815-822 |
Number of pages | 8 |
Journal | ACS Photonics |
Volume | 6 |
Issue number | 4 |
DOIs | |
Publication status | Published - 17 Apr 2019 |
Externally published | Yes |
Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review
Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other › peer-review