Controlled In Situ PbSe Quantum Dot Growth around Single-Walled Carbon Nanotubes: A Noncovalent PbSe-SWNT Hybrid Structure

Schornbaum J, Winter B, Schießl S, Butz B, Spiecker E, Zaumseil J (2013)

Publication Status: Published

Publication Type: Journal article

Publication year: 2013

Journal

Chemistry of Materials American Chemical Society

Publisher: American Chemical Society

Book Volume: 25

Pages Range: 2663-2669

Journal Issue: 13

DOI: 10.1021/cm401202t

Abstract

We developed a simple method of synthesizing noncovalently linked hybrids of PbSe quantum dots (QDs) and single-walled carbon nanotubes (SWNTs). The PbSe QDs grow around the SWNTs without any linker molecule or chemical modification of the SWNTs. We are able to control the size and shape of the QDs attached to the SWNTs by varying the synthesis conditions and elucidate the three-dimensional (3D) morphology and atomic structure of the half-ring-shaped PbSe QDs bonded to the SWNTs using scanning transmission electron microscopy (STEM) tomography and high-resolution transmission electron microscopy (HRTEM). The PbSe QDs not only assemble on the SWNT bundles, but they actually grow around them. The growth of the PbSe QDs around SWNT sidewalls is favored over the growth of spherical particles in solution, probably due to dipole stabilization by the large pi-electron system of the SWNTs.

Authors with CRIS profile

Julia Schornbaum Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) Benjamin Apeleo Zubiri Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Stefan Schießl Lehrstuhl für Werkstoffwissenschaften (Polymerwerkstoffe) Benjamin Butz Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Erdmann Spiecker Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Jana Zaumseil Professur für Werkstoffwissenschaften (Computational Materials Microscopy)

Additional Organisation(s)

Exzellenz-Cluster Engineering of Advanced Materials Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

How to cite

APA:

Schornbaum, J., Winter, B., Schießl, S., Butz, B., Spiecker, E., & Zaumseil, J. (2013). Controlled In Situ PbSe Quantum Dot Growth around Single-Walled Carbon Nanotubes: A Noncovalent PbSe-SWNT Hybrid Structure. Chemistry of Materials, 25(13), 2663-2669. https://dx.doi.org/10.1021/cm401202t

MLA:

Schornbaum, Julia, et al. "Controlled In Situ PbSe Quantum Dot Growth around Single-Walled Carbon Nanotubes: A Noncovalent PbSe-SWNT Hybrid Structure." Chemistry of Materials 25.13 (2013): 2663-2669.

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