The electronic and optical properties of dendrimer-capped CdS quantum dots: a UV-vis and x-ray spectroscopy study

and

Published under licence by IOP Publishing Ltd
, , Citation P Zhang and T K Sham 2005 Phys. Scr. 2005 1019 DOI 10.1238/Physica.Topical.115a01019

1402-4896/2005/T115/1019

Abstract

The electronic and optical properties of a series of PAMAM-dendrimer capped CdS quantum dots (QDs) have been investigated with UV-vis absorption (UV-abs), photoluminescence (PL), x-ray absorption near-edge structure (XANES) and x-ray excited optical luminescence (XEOL) techniques. The size-dependent electronic behavior of the QDs was observed in both the UV-abs and XANES (S K-edge) spectroscopy. Findings from the PL and XEOL studies provide complementary information to the UV- and x-ray absorption results and shed further light on the stability of the CdS QDs upon aging.

Export citation and abstract BibTeX RIS

Please wait… references are loading.
10.1238/Physica.Topical.115a01019