Portable microsensors based on individual SnO2 nanowires.

  • Hernandez-Ramirez F
  • Prades J
  • Tarancon A
 et al. 
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Individual SnO(2) nanowires were integrated in suspended micromembrane-based bottom-up devices. Electrical contacts between the nanowires and the electrodes were achieved with the help of electron- and ion-beam-assisted direct-write nanolithography processes. The stability of these nanomaterials was evaluated as function of time and applied current, showing that stable and reliable devices were obtained. Furthermore, the possibility of modulating their temperature using the integrated microheater placed in the membrane was also demonstrated, enabling these devices to be used in gas sensing procedures. We present a methodology and general strategy for the fabrication and characterization of portable and reliable nanowire-based devices.

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  • F Hernandez-Ramirez

  • J D Prades

  • a Tarancon

  • S Barth

  • O Casals

  • R Jiménez-Diaz

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