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. 2020 Jul 22;10(8):1432. doi: 10.3390/nano10081432

Table 2.

Optical characteristics of phosphonium-based polythiophene CPEs in water.

Compound λabs max (nm) λem max (nm) 1 ΦF 2 τF (ns) ΦΔ
PTH1 495 624 0.01 0.5 < 0.01
PTH2 464 605 0.07 0.7 0.13
PTH3 466 605 0.08 0.7 0.15

1 λexc = 466 nm, 2 measured using tris(bipyridine)ruthenium(II) chloride [Ru(bpy)3]Cl2 in water as a reference (ΦF = 0.042) [61], 3 measured using [Ru(bpy)3]Cl2 in D2O as a reference (ΦΔ = 0.53) [62].