Boehmite nanorod/gold nanoparticle nanocomposite film for an easy-to-use optical humidity sensor

Priyank Mohan, Ryuzo Shinta, Jun Fujiwara, Hiroaki Takahashi, Derrick Mott, Yasufumi Matsumura, Goro Mizutani, Kentaro Iwami, Norihiro Umeda, Shinya Maenosono

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Nanocomposite films consisting of gold nanoparticles (Au NPs) and boehmite nanorods (NRs) were synthesized via simple wet chemical methods. The nanocomposite film exhibited an excellent optical sensing capability of humidity utilizing the refractive-index-dependent localized surface plasmon resonance (LSPR), which directly enables low-cost and easy-to-use remote humidity monitoring. It has been revealed that the superior performance of the Au-NP/boehmite nanocomposite film is owing to porousness, smoothness, and hydrophilicity of the boehmite matrix.

Original languageEnglish
Pages (from-to)429-435
Number of pages7
JournalSensors and Actuators, B: Chemical
Volume168
DOIs
Publication statusPublished - 2012 Jun 20
Externally publishedYes

Keywords

  • Boehmite
  • Composite film
  • Gold nanoparticle
  • Humidity sensor
  • Localized surface plasmon resonance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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  • Cite this

    Mohan, P., Shinta, R., Fujiwara, J., Takahashi, H., Mott, D., Matsumura, Y., Mizutani, G., Iwami, K., Umeda, N., & Maenosono, S. (2012). Boehmite nanorod/gold nanoparticle nanocomposite film for an easy-to-use optical humidity sensor. Sensors and Actuators, B: Chemical, 168, 429-435. https://doi.org/10.1016/j.snb.2012.04.055