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Excited-state lifetime of the donor PPIX attached to Al2O3 in presence and absence of the acceptor SQ2.
| sample | excitation wavelength (nm) | emission wavelength (nm) | τ1 (ns) | τ2 (ns) | τ3 (ns) | τavg (ns) |
| PPIX | 409 | 633 | 13.20 (100%) | — | — | 13.20 |
| PPIX-SQ2 | 409 | 633 | 0.25 (23%) | 1.02 (39%) | 13.20 (38%) | 5.47 |
