Photonic Crystal Based Sensor for Organic Solvents and for Solvent-Water Mixtures

Monodisperse polystyrene nanoparticles with a diameter of 173 nm were incorporated into a polydimethylsiloxane matrix where they display an iridescent color that can be attributed to the photonic crystal effect. The film is of violet color if placed in plain water, but turns to red in the presence o...

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Bibliographic Details
Main Authors: Otto S. Wolfbeis, Thomas Hirsch, Christoph Fenzl
Format: Article
Language:English
Published: MDPI AG 2012-12-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/12/12/16954