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Table 1 Transient absorption kinetics fitting parameters [lifetime (τ) and weight coefficient (A)] of MC, EX, CT, and CT′ state

From: Identification of a bridge-specific intramolecular exciton dissociation pathway in donor–π–acceptor alternating conjugated polymers

Sample State τ1/ps (A) τ2/ps (A) τ3/ps (A) τ4/ps (A) τ5/ps (A)
HSD-A MC 0.183 (− 0.46) 6.43 (− 0.28) 4950 (0.27)  
HSD-B MC 0.304 (− 0.51) 12.6 (− 0.29) 28.8 (− 0.03)  ≥ 6000 (0.18)  
HSD-C MC 0.296 (− 0.39) 8.41 (− 0.24) 26.4 (− 0.16)  ≥ 6000 (0.27)  
HSD-A EX 2.41 (0.38) 84.4 (0.24) 2450 (0.29)  ≥ 6000 (0.09)  
HSD-B EX 0.712 (0.49) 18.4 (0.27) 735 (0.12)  ≥ 6000 (0.12)  
HSD-C EX 0.408 (0.19) 7.96 (0.06) 627 (0.03) 4410 (− 0.35)  ≥ 6000 (0.37)
HSD-A CT 0.132 (− 0.54) 8.61 (0.07) 3250 (0.39)   
HSD-B CT 0.155 (− 0.53) 15.8 (0.19) 2790 (0.29)   
HSD-C CT 0.215 (− 0.51) 12.3 (0.17) 2240 (0.32)   
HSD-B CT′ 0.289 (− 0.51) 30 (0.1) 2440 (0.39)   
HSD-C CT′ 0.176 (− 0.52) 19.6 (0.08) 2050 (0.4)