Fig. 6: Investigation of optical properties. | Nature Communications

Fig. 6: Investigation of optical properties.

From: Towards bioresource-based aggregation-induced emission luminogens from lignin β-O-4 motifs as renewable resources

Fig. 6

a Molecular design of lignin-derived BioAIEgens; b PL spectra of 3d in acetonitrile/water (ACN/H2O) mixtures with different water fractions (fw), λex: 300 nm, concentration: 20 μM; c the plots of the αAIE and maximum emission wavelength versus the composition of the aqueous mixture of 3d, αAIE = I/I0, I0 = PL intensity in pure ACN, inset: fluorescence photographs taken under 365 nm UV irradiation; d plots of αAIE versus the composition of the aqueous mixture of 3h (I0 = PL intensity in pure ACN, λex: 311 nm) and 3q (I0 = PL intensity in pure THF, λex: 301 nm), inset: fluorescence photographs taken under 365 nm UV irradiation, concentration: 20 μM; e frontier molecular orbitals and their corresponding HOMO/LUMO energies of 3d, 3h, and 3q.

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