Fig. 3: Early time evolution of excited state absorption spectra of p p-ICz-PI, o-ICz-PI and Cz-PI measured in DCM. | Nature Communications

Fig. 3: Early time evolution of excited state absorption spectra of p p-ICz-PI, o-ICz-PI and Cz-PI measured in DCM.

From: Rigid and planar π-conjugated molecules leading to long-lived intramolecular charge-transfer states exhibiting thermally activated delayed fluorescence

Fig. 3

Excited state absorption measurements in the 0–80 ps and 0–6 ns time windows for (a, d), p-ICz-PI (b, e) Cz-PI and (c, f) o-ICz-PI in polar DCM solutions showing the evolution of a stable CT state in o-ICz-PI and Cz-PI including relaxation of the CT state through solvent shell reorganisation. However, in p-ICz-PI very different spectral evolution shows much more locally-excited state characteristics from a large, conjugated fragment of the molecule. λexc = 343 nm, [c] = 1 × 10−4 M.

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