Fig. 3: Upconversion and UC-CPUVL process of R(S)-TP/4CzIPN in deaerated toluene solution.
a Upconversion emission spectra of R-TP/4CzIPN with different incident excitation intensities of the 445 nm CW laser in deaerated toluene solution. b Double-logarithmic plots of the upconversion emission intensity of R-TP/4CzIPN in deaerated toluene solution as a function of the excitation intensity. c Upconversion efficiencies of R-TP/4CzIPN in deaerated toluene solution with different excitation light intensities of the 445 nm CW laser. d Time-resolved upconverted emission at 385 nm of the R-TP/4CzIPN in toluene solution (λex = 445 nm). e UC-CPUVL spectra of R-TP/4CzIPN and S-TP/4CzIPN in deaerated toluene solution (λex = 445 nm). f Luminescence dissymmetry factor glum of UC-CPUVL versus wavelength. R-TP/4CzIPN excited by 445 nm CW laser (red triangle); R-TP excited by 290 nm (white triangle); S-TP/4CzIPN excited by 445 nm CW laser (red inverted triangle); S-TP excited by 290 nm (white inverted triangle). ([R-TP] = [S-TP] = 3 mM, [4CzIPN] = 0.1 mM). For all the upconversion measurements, a 445 nm short-pass filter was used.
