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. 2018 Jun 1;9(29):6240–6259. doi: 10.1039/c8sc00293b

Table 3. Six-component global target analysis of transient absorption of amorphous pentacene derivative nanoparticles (all time constants in units of ps) a , b .

Compound Dimer pair sites
H-aggregate Monomer-like
τ S1S0(H) τ TT* τ TT(S) τ S1S0(m) τ TT(L) τ T···T
TES-Pn ≤0.1 13 150 0.4 640 ≫8000
TIPS-Pn 0.2 15 200 1.1 960 ≫8000
TSBS-Pn ≤0.1 10 310 1.7 2300 ≫8000

aAs described in detail in the main text, the components SAS-1, SAS-3, and SAS-4 are assigned to the H-aggregate sub-populations S1S0 (H), TT*, and TTS, respectively, and the components SAS-2, SAS-5, and SAS-6 are assigned to the monomer-like sub-populations S1S0 (m), TTL, and T···T, respectively.

bNanosecond transient absorption measurements indicate that spatially separated triplets exhibit a lifetime of ca. 10 μs (Section S20), i.e., which is essentially equivalent to that of isolated-chromophore triplet excitations (Section S10).