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Red photoluminescence in praseodymium-doped titanate perovskite films epitaxially grown by pulsed laser deposition
| Content Provider | Semantic Scholar |
|---|---|
| Author | Takashima, Hiroshi Ueda, Kazushige Itoh, Mitsuru |
| Copyright Year | 2006 |
| Abstract | Intense red photoluminescence (PL) under ultraviolet (UV) excitation was observed in epitaxially grown Pr-doped Ca0.6Sr0.4TiO3 perovskite films. The films were grown on SrTiO3 (100) substrates by pulsed laser deposition, and their epitaxial growth was confirmed by x-ray diffraction and reflected high-energy electron diffraction. The observed sharp PL peak centered at 610nm was assigned to the transition of Pr3+ ions from the D21 state to the H43 state. The PL intensity was markedly enhanced by postannealing treatments at 1000°C, above the film-growth temperature of 600 or 800°C. Because the excitation and absorption spectra are similar to each other, it was suggested that the UV energy absorbed by the host lattice was transferred to the Pr ions, resulting in the red luminescence. |
| Starting Page | 261915 |
| Ending Page | 261915 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.2424438 |
| Volume Number | 89 |
| Alternate Webpage(s) | https://kyutech.repo.nii.ac.jp/?action=repository_action_common_download&attribute_id=17&file_no=1&item_id=304&item_no=1 |
| Alternate Webpage(s) | https://doi.org/10.1063/1.2424438 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
