Table 3.
Optical Properties of BF2bdk/PLA Blends at Room Temperature
0.05% BF2bdk/PLA(w/w%) | 0.5% BF2bdk/PLA (w/w%) | |||
---|---|---|---|---|
λF/nma | τF/nsb | λF/nma | τF/nsb | |
1 | 415 | n/ac | 413 | n/ac |
2 | 415 | 1.82 | 415 | 1.67 |
3 | 448 | 2.31 | 453 | 3.66 |
4 | 419 (532)d | weak (10.1)d | 428 (540)d | 1.81 (10.8)d |
5 | 389 | 0.61 | 392 | 0.89 |
6 | 427 | 2.36 | 435 | 3.79 |
7 | 437 | 1.44 | 443 | 1.83 |
8 | 430 (514)d | 1.22 (9.12)d | 430 (531)d | 1.98 (13.43)d |
9 | 429 | 2.44 | 435 | 3.71 |
10 | 429 | 5.35 | 413 | 6.58 |
λex = 369 nm.
Pre-exponential weighted lifetimes. All fluorescence lifetimes were fitted with triple-exponential decays.
Signal too weak to be detected with current LED excitation.
Values in parentheses correspond to charge transfer processes.