In situ investigation of two-step nucleation and growth of CdS nanoparticles from solution

Journal article
(Original article)


Publication Details

Author(s): Schiener A, Magerl A, Krach A, Seifert S, Steinrück HG, Zagorac J, Zahn D, Weihrich R
Journal: Nanoscale
Publisher: Royal Society of Chemistry
Publication year: 2015
Volume: 7
Journal issue: 26
Pages range: 11328-11333
ISSN: 2040-3364
eISSN: 2040-3372
Language: English


Abstract


We report on a combined ultra-fast in situ SAXS and WAXS study along a free-jet providing insight into the evolution of the morphology and crystalline structure of CdS quantum dots in the very early stage of nucleation between 100 μs and 2.5 ms with a time resolution down to 10 μs. Accessing this yet unexplored time regime provides direct evidence of a two-step mechanism via formation of prenucleation clusters followed by nanoparticle nucleation from coalescing precursors. Using ab initio calculations, the latter species is identified as Cd13S4(SH)18 clusters, the stability of which results from a compact surface and inner structure.



FAU Authors / FAU Editors

Magerl, Andreas Prof. Dr.
Schiener, Andreas
Lehrstuhl für Kristallographie und Strukturphysik
Lehrstuhl für Kristallographie und Strukturphysik
Steinrück, Hans-Georg
Lehrstuhl für Kristallographie und Strukturphysik
Zagorac, Jelena
Lehrstuhl für Theoretische Chemie


Additional Organisation
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Exzellenz-Cluster Engineering of Advanced Materials
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)


External institutions with authors

Argonne National Laboratory
Universität Regensburg


Research Fields

A2 Nanoanalysis and Microscopy
Exzellenz-Cluster Engineering of Advanced Materials
A3 Multiscale Modeling and Simulation
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Schiener, A., Magerl, A., Krach, A., Seifert, S., Steinrück, H.-G., Zagorac, J.,... Weihrich, R. (2015). In situ investigation of two-step nucleation and growth of CdS nanoparticles from solution. Nanoscale, 7(26), 11328-11333. https://dx.doi.org/10.1039/c5nr01602a

MLA:
Schiener, Andreas, et al. "In situ investigation of two-step nucleation and growth of CdS nanoparticles from solution." Nanoscale 7.26 (2015): 11328-11333.

BibTeX: 

Last updated on 2019-03-06 at 16:59