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Inkjet‐Printed Multicolor Arrays of Highly Luminescent Nanocrystal‐Based Nanocomposites
Author(s) -
Kim Joo Yeon,
Ingrosso Chiara,
Fakhfouri Vahid,
Striccoli Marinella,
Agostiano Angela,
Curri M. Lucia,
Brugger Jurgen
Publication year - 2009
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200801315
Subject(s) - nanocomposite , polystyrene , materials science , luminescence , nanocrystal , nanotechnology , polymer , inert , nozzle , photoluminescence , solvent , chemical engineering , optoelectronics , composite material , chemistry , engineering , physics , organic chemistry , thermodynamics
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 pixel arrays. This study demonstrates the relevance of parameters like polymer concentration and nozzle diameter, highlighting how the optimal conditions to print NCs embedded in 5 wt% polystyrene nanocomposite are given by a 70‐µm‐diameter nozzle. The obtained structures show that the bright size‐dependent emission of the NCs in the nanocomposite is retained in the printed pixels.