Micro, Nano, and Molecular Systems Article 2018

Chiral Plasmonic Hydrogen Sensors

Matuschek et al 2018 small

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.

Author(s): Matuschek, Marcus and Singh, Dhruv Pratap and Hyeon-Ho, Jeong and Nesterov, Maxim and Weiss, Thomas and Fischer, Peer and Neubrech, Frank and Na Liu, Laura
Journal: Small
Volume: 14
Number (issue): 7
Pages: 1702990
Year: 2018
Month: February
Day: 15
Bibtex Type: Article (article)
DOI: 10.1002/smll.201702990
State: Published
URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.201702990
Annote: Feature Cover Article
Electronic Archiving: grant_archive
Eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1002/smll.201702990

BibTex

@article{2018matuschek,
  title = {Chiral Plasmonic Hydrogen Sensors},
  journal = {Small},
  abstract = {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.},
  volume = {14},
  number = {7},
  pages = {1702990},
  month = feb,
  year = {2018},
  slug = {doi-10-1002-smll-201702990},
  annote = {Feature Cover Article},
  author = {Matuschek, Marcus and Singh, Dhruv Pratap and Hyeon-Ho, Jeong and Nesterov, Maxim and Weiss, Thomas and Fischer, Peer and Neubrech, Frank and Na Liu, Laura},
  eprint = {https://onlinelibrary.wiley.com/doi/pdf/10.1002/smll.201702990},
  url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.201702990},
  month_numeric = {2}
}