Research Article
Photoluminescence Enhancement of Titanate Nanotubes by Insertion of Rare Earth Ions in Their Interlayer Spaces
Figure 1
(a) Raman spectra; (b) X-ray diffractograms; and (c) UV-Vis reflectance spectra of Na-TiNts and RE-TiNts samples. The dashed lines on (a) and (b) parts are only eyes guide to show the displacement of the bands at 158, 190, and 906 cm−1 in Raman spectrum and (200) peak in diffractogram (peak related to interlayer spacing) of Na-TiNts after intercalation of RE ions, respectively.
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