NDLI: Patterned assembly of luminescent nanocrystals: role of the molecular chemistry at the interface

Content Provider	Springer Nature Link
Author	Altomare, Michele Fanizza, Elisabetta Corricelli, Michela Comparelli, Roberto Striccoli, Marinella Curri, Maria Lucia
Copyright Year	2014
Abstract	A simple fabrication approach for achieving nanoparticle patterns based on a room temperature chemically driven strategy is reported. Suitably engineered colloidal luminescent nanocrystals (NCs) (4 and 6 nm in diameter), namely organic capped and silica-coated negatively charged CdSe@ZnS NCs, have been selectively assembled onto defined domains in a binary hydrophobic/hydrophilic chemical pattern, purposely fabricated by combining microcontact printing and wet chemistry procedures. The goal of the work has been to investigate the experimental parameters governing the assembly process at molecular level, in order to elucidate factors regulating interactions at the interfaces. For this purpose, specific sets of conditions, namely substrate patterns and NCs with distinct surface functionalization, have been prepared and tested using different NC dispersing solvents. The NC assembly has been demonstrated driven by non-covalent forces, namely Van der Waals or electrostatic interactions occurring at the NC/substrate interface. The overall study has provided a comprehensive understanding of the role of solvent and molecular chemistry at interfaces in NC assembling. The obtained results can be valuable to set up reliable procedures for developing reproducible patterning protocols potentially useful for the fabrication of NC-based devices.
Starting Page	1
Ending Page	14
Page Count	14
File Format	PDF
ISSN	13880764
Journal	Journal of Nanoparticle Research
Volume Number	16
Issue Number	7
e-ISSN	1572896X
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-06-06
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Luminescent colloidal nanocrystals Surface chemistry Microcontact printing Patterning Solvent properties Nanotechnology Inorganic Chemistry Characterization and Evaluation of Materials Physical Chemistry Optics, Optoelectronics, Plasmonics and Optical Devices
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Atomic and Molecular Physics, and Optics Condensed Matter Physics Bioengineering Modeling and Simulation

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