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

Author:

Rosebrock Marina123ORCID,Schlenkrich Jakob1ORCID,Christmann Hannah1ORCID,Graf Rebecca12ORCID,Bessel Patrick12ORCID,Dorfs Dirk123ORCID,Zámbó Dániel4ORCID,Bigall Nadja C.123ORCID

Affiliation:

1. Institute of Physical Chemistry and Electrochemistry Leibniz Universität Hannover 30167 Hanover Germany

2. Laboratory for Nano and Quantum Engineering Leibniz Universität Hannover 30167 Hanover Germany

3. Cluster of Excellence PhoenixD (Photonics, Optics and Engineering – Innovation Across Disciplines) Leibniz Universität Hannover 30167 Hanover Germany

4. Institute of Technical Physics and Materials Science Centre for Energy Research 1121 Budapest Hungary

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.

Funder

Deutsche Forschungsgemeinschaft

Publisher

Wiley

Subject

General Earth and Planetary Sciences,General Environmental Science

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