Interpenetrating Self-Supporting Networks from Anisotropic Semiconductor Nanoparticles and Noble Metal Nanowires

authored by
Marina Rosebrock, Jakob Schlenkrich, Hannah Christmann, Rebecca Graf, Patrick Bessel, Dirk Dorfs, Dániel Zámbó, Nadja C. Bigall
Abstract

In this work, a new type of multicomponent nanostructures is introduced by forming interpenetrating networks of two different nanomaterials. In detail, gel networks from semiconductor nanorods are interpenetrated by Au nanowires. Two different types of gelling agents, namely S2− and Yb3+, are employed to trigger the network formation. The structural and electrochemical properties of the resulting materials are discussed. (Photo)electrochemical measurements are performed on the structures to compare the materials in terms of their conductivity as well as their efficiency in converting photonic energy to electrical energy. The new type of CdSe/CdS:Au nanostructure gelled with S2− shows one order of magnitude higher photocurrent than the system gelled with Yb3+. Moreover, the introduction of Au nanowires exhibit a photocurrent which is two orders of magnitudes higher than in samples without Au nanowires.

Organisation(s)
Institute of Physical Chemistry and Electrochemistry
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines
Laboratory of Nano and Quantum Engineering
External Organisation(s)
Centre for Energy Research
Type
Article
Journal
Small Structures
Volume
4
No. of pages
8
Publication date
11.12.2023
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Materials Science(all), Engineering (miscellaneous), Chemistry (miscellaneous), Energy (miscellaneous), Environmental Science (miscellaneous)
Electronic version(s)
https://doi.org/10.1002/sstr.202300225 (Access: Open)