Publication
Title
Three-dimensional atomic imaging of colloidal core-shell nanocrystals
Author
Abstract
Colloidal coreshell semiconductor nanocrystals form an important class of optoelectronic materials, in which the exciton wave functions can be tailored by the atomic configuration of the core, the interfacial layers, and the shell. Here, we provide a trustful 3D characterization at the atomic scale of a free-standing PbSe(core)CdSe(shell) nanocrystal by combining electron microscopy and discrete tomography. Our results yield unique insights for understanding the process of cation exchange, which is widely employed in the synthesis of coreshell nanocrystals. The study that we present is generally applicable to the broad range of colloidal heteronanocrystals that currently emerge as a new class of materials with technological importance.
Language
English
Source (journal)
Nano letters / American Chemical Society. - Washington
Publication
Washington : 2011
ISSN
1530-6984
Volume/pages
11:8(2011), p. 3420-3424
ISI
000293665600062
Full text (Publisher's DOI)
Full text (open access)
Full text (publisher's version - intranet only)
UAntwerpen
Faculty/Department
Research group
[E?say:metaLocaldata.cgzprojectinf]
ESMI - European Soft Matter Infrastructure.
Development of discrete tomography for transmission electron microscopy: 3D imaging of interfaces in ceramic and semiconducting multilayers.
Quantitative three-dimensional structure determination using transmission electron microscopy : from images toward precise three-dimensional structures of nanomaterials at atomic scale.
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 21.09.2011
Last edited 13.09.2017
To cite this reference