Fig. 3: Color design of UCPL in deaerated toluene and chiral liquid crystals (CLCs).
a UCPL spectra of dual-annihilator model as a function of different molar ratios of DPA to BDP under excitation of 639 nm laser with a power density of 2.3 W cm−2. [PtTPBP] = 1.0 × 10−5 mol L−1, [DPA] = 5.0 × 10−2 mol L−1. Insets show the luminescence of the sample under different light sources. The uppers are illuminated by 639 nm laser while the lowers are illuminated by 365 nm light. b CIE (x, y) chromaticity coordinate of dual-annihilator model with varying concentrations of BDP in deaerated toluene. The relationship of x value (x in CIE (x, y) chromaticity coordinate) and [BDP]/[DPA] (blue line) as well as x and y values (y in CIE (x, y) chromaticity coordinate) (red line) was fitted. c Photographs of chiral dual-annihilator model with different BDP contents (the molar ratios of DPA/BDP from left to right are 30,000:2, 30,000:8, 30,000:10, 30,000:12, 30,000:14, and 30,000:20, respectively) illuminated by different light sources, uppers: 639 nm, lowers: 365 nm. d CIE (x, y) chromaticity coordinate of chiral dual-annihilator model with varying concentrations of BDP in CLCs. The relationship of x value and [BDP]/[DPA] (blue line) as well as x and y values (red line) was fitted. e The relative error diagram of the experimental data and the calculated results of the x values point in the CIE (x, y) chromaticity coordinates. f UCCPL spectra of the above six samples (λex = 639 nm). g glum values corresponding to the UCCPL at 440 and 550 nm, respectively. h DSCPL spectra of the above six samples (λex = 360 nm). i glum values correspond to the DSCPL at 440 and 550 nm, respectively. The above spectrum of DSCPL and UCCPL was tested three times. All error bars show mean ± standard deviation. n = 3 independent experiments.
