Figure 8.

In situ generation of light. (A) PSA detection by coupling H₂O₂–triggered peroxyoxalate self-illuminated system with an external capacitor on the photoanode and digital multimeter as readout device [Reprinted from Shu et al. (2016) with permission from American Chemical Society]. (B) Schematic of the photocurrent generation mechanism in the modified paper sample zone of the Au-PWE under a CL light source [Reprinted from Wang et al. (2014a) with permission from Royal Society of Chemistry].