Uniform Large-Area Free-Standing Silver Nanowire Arrays on Transparent Conducting Substrates

authored by

Yuyi Feng, Kwang-Dae Kim, Clayton A. Nemitz, Paul Kim, Thomas Pfadler, Melanie Gerigk, Sebastian Polarz, James A. Dorman, Jonas Weickert, Lukas Schmidt-Mende

Abstract

Arrays of silver nanowires have received increasing attention in a variety of applications such as surface-enhanced Raman scattering (SERS), plasmonic biosensing and electrode for photoelectric devices. However, until now, large scale fabrication of device-suitable silver nanowire arrays on supporting substrates has seen very limited success. Here we show the synthesis of free-standing silver nanowire arrays on indium-tin oxide (ITO) coated glass by pulsed electrodeposition into anodic aluminum oxide (AAO) templates. We use an in situ oxygen plasma cleaning process and a sputtered Ti layer to enhance the adhesion between the template and ITO glass. An ultrathin gold layer (2 nm) is deposited as a nucleation layer for the electrodeposition of silver. An unprecedented high level of uniformity and control of the nanowire diameter, spacing and length has been achieved. The absorption measurements show that the free-standing silver nanowire arrays possess tunable plasmonic resonances.

External Organisation(s)

University of Konstanz

Type

Article

Journal

Journal of the Electrochemical Society

Volume

163

Pages

D447-D452

ISSN

0013-4651

Publication date

2016

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Renewable Energy, Sustainability and the Environment, Surfaces, Coatings and Films, Electrochemistry, Materials Chemistry

Sustainable Development Goals

SDG 7 - Affordable and Clean Energy

Electronic version(s)

https://doi.org/10.1149/2.1141608jes (Access: Open)