Stabilization mechanism of ZnO quantum dots

Peukert W, Marczak R, Schäfer S, Segets D (2010)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution, Conference Contribution

Publication year: 2010

Book Volume: 1

Pages Range: 344-347

Event location: Anaheim, CA US

ISBN: 9781439834015

URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=78049424333&origin=inward

Abstract

The current work addresses the understanding of the stabilization of small ZnO quantum dots in ethanolic suspension. Thereby different degrees of purification were investigated. The results revealed that not only the well-known ζ-potential as a representative for the surface charge determines the colloidal stability but also the surface coverage of acetate groups bound to the particle surface. Those acetate groups act as molecular spacers between the nanoparticles and prevent agglomeration. Regarding DLVO-calculations using a core-shell model, not only the height of the maximum but also the depth of the primary minimum has to be considered to see if a colloidal suspension is stable or not.

Authors with CRIS profile

Wolfgang Peukert Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Stefan Schäfer Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik Doris Segets Lehrstuhl für Feststoff- und Grenzflächenverfahrenstechnik

How to cite

APA:

Peukert, W., Marczak, R., Schäfer, S., & Segets, D. (2010). Stabilization mechanism of ZnO quantum dots. In Proceedings of the Nanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010 (pp. 344-347). Anaheim, CA, US.

MLA:

Peukert, Wolfgang, et al. "Stabilization mechanism of ZnO quantum dots." Proceedings of the Nanotechnology 2010: Advanced Materials, CNTs, Particles, Films and Composites - 2010 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2010, Anaheim, CA 2010. 344-347.

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