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. 2023 Feb 10;16(4):1487. doi: 10.3390/ma16041487

Figure 8.

Figure 8

Fluorescence spectra of the anodic oxide. The excited light at a wavelength of 315 nm generated HTA and emitted fluorescence at a wavelength of 425 nm. (HTA: 2-hydroxyterephthalic acid; TNS: TiNbSn alloy).