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Inkjet Printing of Luminescent CdTe Nanocrystal–Polymer Composites†

  1. E. Tekin2,3,
  2. P. J. Smith2,3,
  3. S. Hoeppener2,
  4. A. M. J. van den Berg2,3,
  5. A. S. Susha1,
  6. A. L. Rogach1,
  7. J. Feldmann1,
  8. U. S. Schubert1,2,3

Article first published online: 16 NOV 2006

DOI: 10.1002/adfm.200600587

Issue

Advanced Functional Materials

Advanced Functional Materials

Volume 17, Issue 1, pages 23–28, January, 2007

Additional Information

How to Cite

Tekin, E., Smith, P. J., Hoeppener, S., van den Berg, A. M. J., Susha, A. S., Rogach, A. L., Feldmann, J. and Schubert, U. S. (2007), Inkjet Printing of Luminescent CdTe Nanocrystal–Polymer Composites. Adv. Funct. Mater., 17: 23–28. doi: 10.1002/adfm.200600587

Author Information

  1. 1

    Photonics and Optoelectronic Group, Physics Department & Center for Nanoscience (CeNS), Ludwig-Maximilians-Universität München, Amalienstr. 54, 80799 Munich, Germany

  2. 2

    Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology (TU/e), P.O. Box 513, 5600 MB Eindhoven, The Netherlands

  3. 3

    Dutch Polymer Institute (DPI), P.O. Box 902, 5600 AX Eindhoven, The Netherlands

  1. †

    This work forms part of the DPI research program (project 448) and was further supported by NWO, the Leibniz program of the DFG and the Fonds der Chemischen Industrie.

Publication History

  1. Issue published online: 4 JAN 2007
  2. Article first published online: 16 NOV 2006
  3. Manuscript Revised: 22 AUG 2006
  4. Manuscript Received: 2 JUL 2006

Funded by

  • DPI research program. Grant Number: 448
  • NWO
  • Leibniz program of the DFG
  • Fonds der Chemischen Industrie

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Keywords:

  • Inkjet printing;
  • Luminescence;
  • Nanocomposites;
  • Nanocrystalline materials

Abstract

Inkjet printing is used to produce well-defined patterns of dots (with diameters of ca. 120 μm) that are composed of luminescent CdTe nanocrystals (NCs) embedded within a poly(vinylalcohol) (PVA) matrix. Addition of ethylene glycol (1–2 vol %) to the aqueous solution of CdTe NCs suppresses the well-known ring-formation effect in inkjet printing leading to exceptionally uniform dots. Atomic force microscopy characterization reveals that in the CdTe NC films the particle–particle interaction could be prevented using inert PVA as a matrix. Combinatorial libraries of CdTe NC–PVA composites with variable NC sizes and polymer/NC ratios are prepared using inkjet printing. These libraries are subsequently characterized using a UV/fluorescence plate reader to determine their luminescent properties. Energy transfer from green-light-emitting to red-light-emitting CdTe NCs in the composite containing green- (2.6 nm diameter) and red-emitting (3.5 nm diameter) NCs are demonstrated.

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