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)