Table 3. Results from Fitting of Temperature-Dependent PL Lifetimes for the Four Au52(SR)32 NCs.
NCs | Au52(p-MBT)32 | Au52(4-EBT)32 | Au52(IPBT)32 | Au52(TBBT)32 |
---|---|---|---|---|
ΔES-T, meV | 49 | 59 | 59 | 83 |
intrinsic τ(S1), ns | 21 | 97 | 78 | 24 |
intrinsic τ(T1), μs | 11 | 9.5 | 8.9 | 7 |
QY at 180 K, ΦPL | 82% | 77% | 70% | 66% |