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. 2024 Dec 19;7(1):286–294. doi: 10.1021/acsmaterialslett.4c01465

Figure 4.

Figure 4

(a) Room-temperature trEPR spectra for powders of Anthracene:TCNB, 1-AAN:TCNB, 1,5-DAAN:TCNB, and 9-AAN:TCNB taken 400 ns after laser flash. (b) Spin inversion and Hahn-Echo pulse sequences with the delay after flash (τDAF) equal to 0. (c) Measurements of T1, and (d) Tm at 10 K fitted with monoexponential decay functions (orange dashed lines). (e) Variable temperature measurements with T1, fitted according to direct and Raman relaxation processes. Pulsed experiments were performed at 2950 G for 9-AAN:TCNB and 1-AAN-TCNB, and 3900 G for Anthracene:TCNB to approximate the canonical Tx–Ty transition. All data was collected using 500 nm light, 3.5–4.5 mJ/pulse, 5–7 ns pulses.