Fig. 5: CPL spectra.

a CPL spectra of drop-casting thin films of S-PEB and R-PEB prepared from MCH/TCE solution (C = 4 × 10−4 M). Inset: the fluorescence image of S-PEB thin film. b CPL spectra of S-PEB and R-PEB @PMMA films. Inset: the fluorescence image of S-PEB@PMMA bulk film. All data are the average of three parallel tests. Source data are provided as a Source Data file.