Published In

Journal of Applied Physics

Document Type

Article

Publication Date

2007

Subjects

X-rays -- Diffraction, Nanocrystals -- Structure, Transmission electron microscopy, Quantum dots -- Research

Abstract

The three-dimensional structure of oleic acid-capped CdSe and thiol-capped CdTe nanocrystals used as quantum dots has been determined by total synchrotron radiationx-ray diffraction and atomic pair distribution function analysis. Both CdSe and CdTe are found to exhibit the zinc-blende-type atomic ordering. It is only slightly distorted in CdSe implying the presence of nanosize domains and very heavily distorted in CdTe due to the presence of distinct core-shell regions. The results well demonstrate the great potential of the experimental approach and thus encourage its wider application in quantum dot research.

Description

Originally appeared in the Journal of Applied Physics, volume 102, issue 4, in 2007. © 2007 American Institute of Physics. May be found at http://dx.doi.org/10.1063/1.2767615.

DOI

10.1063/1.2767615

Persistent Identifier

http://archives.pdx.edu/ds/psu/16103

Share

COinS