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Table 1 The UV emission spectra of a single ZnO microstructure and length and diameters of top end and bottom of the ZnO microstructure at different cooling times

From: Self-Etching-Induced Morphological Evolution of ZnO Microrods Grown on FTO Glass by Hydrothermal Method

Product (h) PL peak1 (eV) PL peak2 (eV) Intensity ratio (peak2/peak1) Length (μm) Top-end diameter (μm) Bottom diameter (μm)
1 3.22 3.29 0.216 8.89 0.80 1.23
2 3.20 3.32 0.331 8.63 0.86 1.23
3 3.20 3.32 0.251 7.25 0.90 1.22
4 3.20 3.32 0.364 7.00 0.91 1.23
5 3.20 3.32 0.187 6.69 0.92 1.23
6 3.21 3.30 0.490 6.49 0.93 1.12
  1. PL photoluminescence