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

Schiener A, Magerl A, Krach A, Seifert S, Steinrück HG, Zagorac J, Zahn D, Weihrich R (2015)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2015

Journal

Nanoscale Royal Society of Chemistry

Publisher: Royal Society of Chemistry

Book Volume: 7

Pages Range: 11328-11333

Journal Issue: 26

DOI: 10.1039/c5nr01602a

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.

Authors with CRIS profile

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

Additional Organisation(s)

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)

Involved external institutions

Universität Regensburg DE Germany (DE) Argonne National Laboratory US United States (USA) (US)

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.

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