TABLE 4.
Lifetime Data for R6G-Labeled Silica Bead and Its Silver Shells
| samples | τi (ns) | χR2 |
|---|---|---|
| 2 × 102 μM R6G in bare bead | 4.14 | 1.1 |
| 10 nm silver shell | 2.81 | 1.4 |
| 20 nm silver shell | 0.88 | 1.2 |
| 30 nm silver shell | 0.82 | 1.3 |
| 40 nm silver shell | 0.96 | 1.4 |
| 50 nm silver shell | 1.02 | 1.3 |