Journal
SMALL
Volume 5, Issue 9, Pages 1051-1057Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.200801315
Keywords
colloidal nanocrystals; inkjet printing; multicolor arrays; nanocomposites; polystyrene
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Funding
- EC [STRP 013619]
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Inkjet technology is a compelling method for the flexible and cost-effective printing of functional inks. We show that nanocomposite solutions based on polystyrene and differently sized core/shell-type nanocrystals (NCs) formed by a CdSe core coated with a shell of ZnS (CdSe@ZnS) in a single solvent, chloroform, can be reliably dispensed into luminescent, multicolor arrays. This study demonstrates the relevance of parameters like polymer concentration and nozzle diameter, highlighting how the optimal conditions to print NO embedded in 5 wt% polystyrene nanocomposite are given by a 70-mu m-diameter nozzle. The obtained structures show that the bright size-dependent emission of the NCs in the nanocomposite is retained in the printed pixels.
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