Continuous synthesis of CuInS2 quantum dots

Journal article
(Original article)


Publication Details

Author(s): Akdas T, Haderlein M, Walter J, Apeleo Zubiri B, Spiecker E, Peukert W
Journal: RSC Advances
Publisher: ROYAL SOC CHEMISTRY
Publication year: 2017
Volume: 7
Journal issue: 17
Pages range: 10057-10063
ISSN: 2046-2069


Abstract


In colloidal semiconductor nanocrystal synthesis, many activities have been focused on the control over the mean particle size of the product. However, for device applications additional requirements apply, e.g. the necessity for a narrow particle size distribution (PSD). In the present work, we investigate the impact of reactor characteristics on the synthesis of CuInS2 quantum dots (QDs). Therefore, the synthesis is carried out in three different reactors, namely in a fully scalable and continuous tubular reactor, in a commercial microreactor and in a batch three-neck round-bottom flask. All reaction products from the three reactor types have the same crystal structure and inorganic composition. Slight differences in optical properties are mainly ascribed to differences in the PSD, which is confirmed by sedimentation velocity experiments. Furthermore, the necessity for using different post-processing routines coupled with our findings by analytical ultracentrifugation (AUC) hint at changes in the organic matrix surrounding the CuInS2 QDs. Our study demonstrates the massive impact of heat transfer on the synthesis and the final PSD of CuInS2 QDs synthesized via heating-up and allows us to draw conclusions on their formation.



FAU Authors / FAU Editors

Akdas, Tugce
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Apeleo Zubiri, Benjamin Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Haderlein, Michael
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Peukert, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Spiecker, Erdmann Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Walter, Johannes Dr.-Ing.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik


Additional Organisation
Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)
Exzellenz-Cluster Engineering of Advanced Materials
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)


How to cite

APA:
Akdas, T., Haderlein, M., Walter, J., Apeleo Zubiri, B., Spiecker, E., & Peukert, W. (2017). Continuous synthesis of CuInS2 quantum dots. RSC Advances, 7(17), 10057-10063. https://dx.doi.org/10.1039/c6ra27052b

MLA:
Akdas, Tugce, et al. "Continuous synthesis of CuInS2 quantum dots." RSC Advances 7.17 (2017): 10057-10063.

BibTeX: 

Last updated on 2019-29-05 at 08:31