Blue Luminescence from (CdS)ZnS Core–Shell Nanocrystals

Out of the blue: (CdS)ZnS nanocrystals suitable for display applications have been prepared and exhibit a narrow, blue luminescence from 460 to 480 nm (FWHM ≤28 nm; see picture), with quantum efficiencies of 20–30 %. It is possible to demonstrate blue electroluminescence from these core–shell nanocr...

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Published inAngewandte Chemie International Edition Vol. 43; no. 16; pp. 2154 - 2158
Main Authors Steckel, Jonathan S., Zimmer, John P., Coe‐Sullivan, Seth, Stott, Nathan E., Bulović, Vladimir, Bawendi, Moungi G.
Format Journal Article
LanguageEnglish
Published Weinheim WILEY‐VCH Verlag 13.04.2004
Subjects
luminescence
nanomaterials
quantum dots
semiconductors
sulfides
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Summary:Out of the blue: (CdS)ZnS nanocrystals suitable for display applications have been prepared and exhibit a narrow, blue luminescence from 460 to 480 nm (FWHM ≤28 nm; see picture), with quantum efficiencies of 20–30 %. It is possible to demonstrate blue electroluminescence from these core–shell nanocrystals by embedding them in an organic thin‐film device.
Bibliography:We thank Michael Frongillo for assistance with the high‐resolution electron microscopy. This work was funded in part by the NSF‐MRSEC program (DMR 0213282) and by the U.S. Army through the Institute for Soldier Nanotechnologies, under Contract DAAD‐19‐02‐0002 with the U.S. Army Research Office.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200453728