Figure 3

Scanning electron microscopy (SEM) images of photoreduced AgNPs using PPE LiNbO3 substrates made with different annealing time, (a) with the magnification of 6 K and (b) with the magnification of 100 K, respectively. (c) Size-distribution histogram of the fabricated PPE LiNbO3 substrates under different annealing times of 0, 1, 4, 9, and 16 h.