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Figure 11 | Nanoscale Research Letters

Figure 11

From: Nonstoichiometric Titanium Oxides via Pulsed Laser Ablation in Water

Figure 11

Photo-luminescence spectra of titanium oxide a nanoparticles (sample 2) and b microtubes (sample 4), the latter having an order-of-magnitude higher emission band from 400 to 700 nm. There are more distinct peaks at specified eVs for the microtubes in (b) in comparison with the nanoparticles in (a). This is due to a larger amount of microtubes with predominant amorphous lamellar wall rather than crystalline TiO, Ti2O3, and TiO2(cf. text)

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