Ultrathin gold island films for time-dependent temperature sensing

Hongtao Sun, Mingpeng Yu, Xiang Sun, Gongkai Wang, Jie Lian

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We report that an ultrathin gold island film deposited on non-wetted substrates, such as silica, is effective for time-dependent ex-situ temperature sensing with a fast time response from 5 to 180 s. The sensing mechanism is based on morphological self-organization of the ultrathin gold films upon thermal-induced dewetting. The shift of the characteristic surface plasmon absorption band can behave as effective "fingerprint" for temperature recording and allows a rapid readout. Time-dependent dewetting behaviors of the ultrathin films (1.0-5.0 nm) and their effects on surface plasmon resonance were investigated, opening up the possibility for developing nano film-based temperature sensors with controllable sensitivities and fast response.

Original languageEnglish (US)
Article number2273
JournalJournal of Nanoparticle Research
Volume16
Issue number2
DOIs
StatePublished - Feb 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Atomic and Molecular Physics, and Optics
  • Modeling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics

Keywords

  • Dewetting
  • Gold
  • Surface plasmon
  • Thermo-sensor
  • Time-dependent
  • Ultrathin film

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