KIP publications

year 2018
author(s) Marcus Matuschek, Dhruv Pratap Singh, Hyeon‐Ho Jeong, Maxim Nesterov, Thomas Weiss, Peer Fischer, Frank Neubrech, Na Liu
title Chiral Plasmonic Hydrogen Sensors
KIP-Nummer HD-KIP 18-19
KIP-Gruppe(n) F28
document type Paper
Keywords (shown) hydrogen, GLAD, palladium, plasmonics, sensors
source Small 14 (2018) 1702990
doi https://doi.org/10.1002/smll.201702990
Abstract (en)

In this article, a chiral plasmonic hydrogen‐sensing platform using palladium‐based nanohelices is demonstrated. Such 3D chiral nanostructures fabricated by nanoglancing angle deposition exhibit strong circular dichroism both experimentally and theoretically. The chiroptical properties of the palladium nanohelices are altered upon hydrogen uptake and sensitively depend on the hydrogen concentration. Such properties are well suited for remote and spark‐free hydrogen sensing in the flammable range. Hysteresis is reduced, when an increasing amount of gold is utilized in the palladium‐gold hybrid helices. As a result, the linearity of the circular dichroism in response to hydrogen is significantly improved. The chiral plasmonic sensor scheme is of potential interest for hydrogen‐sensing applications, where good linearity and high sensitivity are required.

bibtex
@article{NLiu2018,
  author   = {Marcus Matuschek, Dhruv Pratap Singh, Hyeon‐Ho Jeong, Maxim Nesterov, Thomas Weiss, Peer Fischer, Frank Neubrech, Na Liu},
  title    = {Chiral Plasmonic Hydrogen Sensors},
  journal  = {Small},
  year     = {2018},
  volume   = {14},
  number   = {7},
  pages    = {1702990},
  month    = {February},
  doi      = {https://doi.org/10.1002/smll.201702990},
  url      = {https://onlinelibrary.wiley.com/doi/full/10.1002/smll.201702990}
}
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