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Highly Luminescent Flexible Quantum Dot–Clay Films
Author(s) -
Tetsuka Hiroyuki,
Ebina Takeo,
Mizukami Fujio
Publication year - 2008
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/adma.200702544
Subject(s) - luminescence , nanocrystal , quantum dot , materials science , annealing (glass) , photoluminescence , aqueous solution , nanotechnology , chemical engineering , optoelectronics , chemistry , composite material , engineering
Highly luminescent flexible CdSe/ZnS‐clay films with a well‐organized structure can be prepared by simple casting of aqueous dispersions of nanocrystals and clay. Through electrostatic interactions, negatively charged CdSe/ZnS nanocrystals are incorporated into the spaces between the positively charged edges of clay platelets. A substantial enhancement in photoluminescence efficiency is observed by introducing thermal annealing.