Investigation of the size-property relationship in CuInS2 quantum dots

Journal article
(Original article)


Publication Details

Author(s): Akdas T, Walter J, Segets D, Distaso M, Winter B, Birajdar B, Spiecker E, Peukert W
Journal: Nanoscale
Publisher: Royal Society of Chemistry
Publication year: 2015
Volume: 7
Journal issue: 43
Pages range: 18105-18118
ISSN: 2040-3364


Abstract


In this work we investigated fundamental properties of CuInS2 quantum dots in dependence of the particle size distribution (PSD). Size-selective precipitation (SSP) with acetone as poor solvent was performed as an adequate post-processing step. Our results provide deep insight into the correlation between particle size and various optical characteristics as bandgap energy, absorption and emission features and the broadness of the emission signal. These structure-property relationships are only achieved due to the unique combination of different analytical techniques. Our study reveals that the removal of 10 wt% of smallest particles from the feed results in an enhancement of the emission signal. This improvement is ascribed to a decreased quenching of the emission in larger particles. Our results reveal the impact of PSDs on the properties and the performance of an ensemble of multicomponent QDs and anticipate the high potential of controlling PSDs by well-developed post-processing.



FAU Authors / FAU Editors

Akdas, Tugce
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Birajdar, Balaji Dr. rer. nat.
Professur für Werkstoffwissenschaften (Elektronenmikroskopie)
Distaso, Monica Dr.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Peukert, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik
Segets, Doris 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
Apeleo Zubiri, Benjamin Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)


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


Research Fields

A1 Functional Particle Systems
Exzellenz-Cluster Engineering of Advanced Materials
A2 Nanoanalysis and Microscopy
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Akdas, T., Walter, J., Segets, D., Distaso, M., Winter, B., Birajdar, B.,... Peukert, W. (2015). Investigation of the size-property relationship in CuInS2 quantum dots. Nanoscale, 7(43), 18105-18118. https://dx.doi.org/10.1039/c5nr04291g

MLA:
Akdas, Tugce, et al. "Investigation of the size-property relationship in CuInS2 quantum dots." Nanoscale 7.43 (2015): 18105-18118.

BibTeX: 

Last updated on 2019-29-05 at 15:32