Deposited nanorod films for photonic crystal biosensor applications

Wei Zhang, Seok Min Kim, Nikhil Ganesh, Ian D. Block, Patrick C. Mathias, Hsin Yu Wu, Brian T. Cunningham

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Planar photonic crystals have been used as the basis of many biological sensing devices. Here, the authors successfully demonstrated that the combination of the photonic crystal structures and a dielectric nanorod coating prepared by the glancing-angle deposition technique can lead to significant increases in the device sensitivity. By incorporating a TiO2 nanorod coating onto the label-free photonic crystal biosensor structure, the surface area of the device is increased. The results for detection of polymer films and proteins indicate up to a 5.5 fold enhancement of detected adsorbed mass density.

Original languageEnglish
Pages (from-to)996-1001
Number of pages6
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Issue number4
Publication statusPublished - Jul 2010
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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