Large area nanostructured arrays: optical properties of metallic nanotubes

Katja Fröhlich, Pejman Hojati-Talemi, Matthew Bishop, Kamil Zuber, Peter Murphy, Drew Evans

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In this study, large area metallic nanotube arrays on flexible plastic substrates are produced by templating the growth of a cosputtered alloy using anodized aluminum oxide membranes. These nanotube arrays are prepared over large areas (ca. squared centimeters) by reducing the residual stress within the thin multilayered structure. The nanotubes are approximately 20 nm in inner diameter, having walls of 40% for a flat sample using the same alloy. When the nanotubes are exposed to high relative humidity, they spontaneously fill, with a concomitant change in their visual appearance. The filling of the nanotubes is confirmed using contact angle measurements, with the nanotubes displaying a strong hydrophilic character compared to the weak behavior of the flat sample. The ability to easily fabricate large area nanotube arrays which display exotic behavior paves the way for their uptake in real world applications such as sensors and solar energy devices.
Original languageEnglish
Pages (from-to)3937-3942
Number of pages6
JournalACS Applied Materials and Interfaces
Volume5
Issue number9
Early online date11 Apr 2013
DOIs
Publication statusPublished - 8 May 2013

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