Table 1 Parameters for the multilayer colloidal crystal samples of PS@GQDs.

From: Graphene quantum dot-coated polystyrene microsphere multilayer colloidal crystals with distributed Bragg reflector absorption

Sample

PS sphere diameter 2Ri(µm)

PS volume (mL)

GQDs/NMP volume (mL)

Volume ratio fc of GQDs/NMP to PS (%)

3 M layers

Length(cm) × Width(cm) × Thickness(µm)

S1(black solid line)

5.20 ± 0.15

5.0

0

0

1

1 × 1 × 76

S2 (navy solid line)

5.20 ± 0.05

5.0

0.25

5

1

1 × 1 × 132

S3 (cyan solid line)

5.20 ± 0.20

5.0

1.50

30

1

1 × 1 × 154

S4 (purple solid line)

5.20 ± 0.20

5.0

2.60

52

1

1 × 1 × 165

S5 (pink solid line)

1.60 ± 0.02

5.0

2.60

52

1

1 × 1 × 151

S6 (dark cyan solid line)

6.70 ± 0.05

5.0

2.60

52

1

1 × 1 × 154

S7 (wine solid line)

5.20 ± 0.15

5.0

2.60

52

2

1 × 1 × 191

S8 (orange solid line)

5.20 ± 0.10

5.0

2.60

52

3

1 × 1 × 206

  1. Here, the color solid lines in the brackets correspond to the curve colors in the experimental measurements of UV–Vis-NIR spectroscopy and Raman intensity to the eight individual samples. The inner radius Ri is one half of PS spherical diameter and the filling rate fc of GQD cluster structures approaches to the volume ratio of GQDs/NMP to PS in the present numerical simulations.