Synthesis and Characterization of InAs/InP and InAs/CdSe Core/Shell Nanocrystals

16 December 1999

journal article
research article
Published by Wiley in Angewandte Chemie International Edition in English

Vol. 38 (24) , 3692-3694
https://doi.org/10.1002/(sici)1521-3773(19991216)38:24<3692::aid-anie3692>3.0.co;2-w

Abstract

The effect of the outer surface of core/shell nanocrystals on the fluorescence quantum yield was observed for InAs/InP and InAs/CdSe core/shells (see picture). For InAs/CdSe we observed substantial enhancement of the fluorescence quantum yield compared to the InAs core, and up to two times larger than the laser dye IR-140. Such core/shell nanocrystals have potential use as biological fluorescent markers in the near IR spectral range.