Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-5691
Authors: Strohfeldt, Nikolai
Tittl, Andreas
Giessen, Harald
Title: Long-term stability of capped and buffered palladium-nickel thin films and nanostructures for plasmonic hydrogen sensing applications
Issue Date: 2013
metadata.ubs.publikation.typ: Zeitschriftenartikel
metadata.ubs.publikation.source: Optical materials express 3 (2013), S. 194-204. URL http://dx.doi.org/10.1364/OME.3.000194
URI: http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-96673
http://elib.uni-stuttgart.de/handle/11682/5708
http://dx.doi.org/10.18419/opus-5691
Abstract: One of the main challenges in optical hydrogen sensing is the stability of the sensor material. We found and studied an optimized material combination for fast and reliable optical palladium-based hydrogen sensing devices. It consists of a palladium-nickel alloy that is buffered by calcium fluoride and capped with a very thin layer of platinum. Our system shows response times below 10 s and almost no short-term aging effects. Furthermore, we successfully incorporated this optimized material system into plasmonic nanostructures, laying the foundation for a stable and sensitive hydrogen detector.
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