Science Advances

Supplementary Materials

This PDF file includes:

  • note S1. Photothermal response measurement.
  • note S2. Wavelength selectivity study for various SWNT film thickness.
  • note S3. Movie information.
  • note S4. Photothermal actuation model of VO2/SWNT actuators.
  • note S5. Effects of different thermal conductivities and heat capacities between SWNT films.
  • note S6. Effects of SWNT film thickness in wavelength selectivity.
  • fig. S1. Resistance of VO2 as a function of temperature.
  • fig. S2. Beam profiles for the lasers on the tested actuators.
  • fig. S3. Schematic of the setup used for photothermal and time response measurements.
  • fig. S4. Light absorption of the VO2 thin film.
  • fig. S5. Simulated temperature change as a function of time.
  • fig. S6. The SWNT film thickness versus the volume of SWNT solution used for vacuum filtration.
  • fig. S7. Absorption spectra of sSWNT films for different thicknesses.
  • fig. S8. Photothermal response of SWNT films with different heat capacities.
  • fig. S9. Response time versus SWNT film thermal conductivity.
  • fig. S10. Wavelength selectivity as a function of thickness.
  • table S1. Material properties used in the FEM model.
  • Legends for movies S1 to S4
  • References (37–39)

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Other Supplementary Material for this manuscript includes the following:

  • movie S1 (.wmv format). Wavelength-selective actuation of the VO2 actuator.
  • movie S2 (.wmv format). Wavelength-selective actuation of the VO2/uSWNT actuator.
  • movie S3 (.wmv format). Wavelength-selective actuation of the VO2/mSWNT actuator.
  • movie S4 (.wmv format). Wavelength-selective actuation of the VO2/sSWNT actuator.

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