Table 1 Summary of optical and photothermal properties of Au/Pd NPs

From: Impact of bimetallic interface design on heat generation in plasmonic Au/Pd nanostructures studied by single-particle thermometry

 

Diameter (nm)

Extinction λmax (nm)

Scattering λmax (nm)

Scattering FWHM (nm)

\(\frac{{{{{{{\rm{QY}}}}}}}^{{{{{{\rm{Stokes}}}}}}}}{{{{{{{\rm{QY}}}}}}}_{{{{{{\rm{Au}}}}}}67{{{{{\rm{@Pd}}}}}}4}^{{{{{{\rm{Stokes}}}}}}}}\)

Photothermal β (K μm2 mW−1)

Au67 NS

66.6 ± 0.2

535

551 ± 3

80 ± 3

2.8

51 ± 1

Au67@Pd2

71.4 ± 0.3

543

561 ± 2

119 ± 6

1.3

38 ± 1

Au67@Pd4

73.8 ± 0.3

543

565 ± 3

155 ± 16

1

35 ± 1

Au60 NS

59.7 ± 0.2

532

547 ± 2

77 ± 3

2.3

47 ± 1

Au60-Pd-sat

59.7 ± 0.2a

535

547 ± 2

79 ± 3

1.4b

46 ± 1

Au60@Pd2

63.3 ± 0.3

530

551 ± 2

106 ± 9

0.7

29 ± 1

  1. The photothermal coefficient β is indicated at the measured wavelength of 532 nm. The diameters were measured from TEM images.
  2. aFor the Au60-Pd-sat system, the diameter in the table corresponds to the core size, without considering the satellites.
  3. bIn the calculations of the absorption cross-section, a core-satellite gap size of 1 nm was used, as described in Supplementary Note 12.
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