Fig. 2

Self-powered and self-recovered UVC ML. a Schematic illustration of the fabrication process for the SBO:Pr/PDMS elastomer film. b UVC ML images of the elastomer film under various mechanical stimuli, including stretching, bending, and rubbing with a glass rod. c Comparison of ML, PL, RL, and CL emission spectra of the elastomer film. d ML emission spectra of SBO:Pr/PDMS elastomer films with varying Pr³⁺ doping concentrations under stretching. e ML emission spectra of elastomer films with different mass ratios of SBO:Pr phosphor to PDMS. The upper panel shows the corresponding variation in ML intensity as a function of mass ratio. f ML emission spectra of the elastomer film under different stretching strains. The inset shows a linear relationship between ML intensity and applied stress. g ML emission spectrum of the elastomer film under a frictional force of 5 N (stress:1.58 MPa). The inset displays the corresponding UVC ML image