Fig. 4. (Color online) XRD data of PTO nantubes of as-grown samples and post-annealed samples at the temperature 700 °C. For comparison, there are two data of JCPDS card; one is the perovskite-structured PbTiO₃ (JCDPS no. 06-1452), the other is the anatase-structured TiO₂ (JCPDS no. 21-1272).

New Phys.: Sae Mulli 2024;74:873~879 https://doi.org/10.3938/NPSM.74.873

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