fig4
![Construction of piezoelectric photocatalyst Au/BiVO<sub>4</sub> for efficient degradation of tetracycline and studied at single-particle level](https://image.oaes.cc/fb6c44d8-fbbf-45ff-9080-b3ff6e52e2d9/cs3065.fig.4.jpg)
Figure 4. Single-particle PL spectroscopy measurements. PL lifetime mapping of (A) a single BiVO4 particle and (B) a single 3Au/BiVO4 particle; (C) TRPL spectra of entire BiVO4 and 3Au/BiVO4 particles; (D) The PL lifetime of different sites on single BiVO4 and