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Figure 2: Tunable CPL form chiral . (a) Photographs of (0.3 wt%), (0.04 wt%), and (0.04 wt%) under light (top) and UV light (bottom, 365 nm). (b) Normalized fluorescence spectra of (0.3 wt%), (0.04 wt%), and (0.04 wt%), excitation by 450 nm but 360 nm for . (c) Mirror-image CPL spectra of (1) (0.3 wt%), (2) (0.04 wt%), and (3) (0.04 wt%), excitation by 450 nm but 360 nm for . All the dashed lines are the CPL signal obtained from ; all the solid lines are the CPL signal obtained from . (d) Fluorescence spectra of the white light-emitting (0.02 wt% S420, 0.03 wt% C6, and 0.03 wt% DCM) with excitation wavelength of 370 nm. Inset: photograph of the (0.02 wt% S420, 0.03 wt% C6, and 0.03 wt% DCM) under light (left) and UV light (right, 365 nm). (e) The CIE coordinate of (0.02 wt% S420, 0.03 wt% C6, and 0.03 wt% DCM). (f) CPL dissymmetric factor as a function of the wavelength (black: ; red: ),  nm.