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Nano‐ and Microengineering: 3‐D Colloidal Photonic Crystals Prepared from Sub‐μm‐sized Polystyrene Latex Spheres Pre‐Coated with Luminescent Polyelectrolyte/Nanocrystal Shells
Author(s) -
Rogach A.,
Susha A.,
Caruso F.,
Sukhorukov G.,
Kornowski A.,
Kershaw S.,
Möhwald H.,
Eychmüller A.,
Weller H.
Publication year - 2000
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(200003)12:5<333::aid-adma333>3.0.co;2-x
Subject(s) - materials science , polyelectrolyte , nanocrystal , polystyrene , luminescence , nanotechnology , colloid , photonic crystal , chemical engineering , colloidal crystal , doping , layer (electronics) , self assembly , polymer , optoelectronics , composite material , engineering
Colloidal photonic crystals doped with luminescent semiconductor nanocrystals are prepared here by a layer‐by‐layer deposition technique. This method, which involves the consecutive electrostatic adsorption of polyelectrolyte and nanocrystals such as CdTe onto submicrometer‐sized polystyrene latex globules (see Figure), is described as being very versatile and can be extended to the fabrication of either optically active or passive shells of different thickness.