Photopatternable Quantum Dots Forming Quasi-Ordered Arrays

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We have functionalized core shell CdSe/ZnS quantum dots (QDs) with a photosensitive monolayer, rendering them solution processable and photopatternable Upon exposure to ultraviolet radiation, films composed of this material were found to polymerize, forming interconnected arrays of QDs The photoluminescence properties of the nanocrystal films increased with photocuring The material was found to be suitable for spin casting and was used as the active layer in a green electroluminescent device The electroluminescence efficiency of devices containing a photocured active layer was found to be largely enhanced when compared to devices containing nonphotocured active layers The material also showed excellent adhesion to both organic and inorganic substrates because of the unique combination of a siloxane and a photopatternable layer as ligands The pristine functionalized nanocrystals could easily be used for two-dimensional patterning on organic and inorganic substrates The photopatternable quantum dots were uniformly dispersed into a photopolymerizable resin to fabricate QD embedded three-dimensional microstructures
Publisher
AMER CHEMICAL SOC
Issue Date
2010-07
Language
English
Article Type
Article
Keywords

HIGHLY LUMINESCENT CDSE; LIGHT-EMITTING DEVICES; CORE/SHELL NANOCRYSTALS; POLYMER NANOCOMPOSITES; THIN-FILMS; EF-TEM; MICROSTRUCTURES; FABRICATION; CONVERSION

Citation

NANO LETTERS, v.10, no.7, pp.2310 - 2317

ISSN
1530-6984
DOI
10.1021/nl101609s
URI
http://hdl.handle.net/10203/99702
Appears in Collection
ME-Journal Papers(저널논문)
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