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Photoenhancement of a Quantum Dot Nanocomposite via UV Annealing and its Application to White LEDs
Author(s) -
Kim Kyungnam,
Woo Ju Yeon,
Jeong Sohee,
Han ChangSoo
Publication year - 2011
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.201002979
Subject(s) - nanocomposite , materials science , quantum dot , nanocrystal , annealing (glass) , photoluminescence , optoelectronics , nanotechnology , polymer , composite material
The irreversible photoenhancement of a quantum dot (QD) nanocomposite is demonstrated using UV photo‐annealing. The QD nanocomposite consists of a mixture of thermally curable polymer and a QD, which is synthesized as a core/multishell nanocrystal, CdSe/CdS/CdZnS/ZnS. Exposure under 365‐nm UV illumination for 30 min at 70 W surprisingly reveals that the photoluminescence of the QD nanocomposite increases 1.8 times.