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Characteristic Evaluation of Chameleon Luminophore Dispersed in Polymer
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| Title: | Characteristic Evaluation of Chameleon Luminophore Dispersed in Polymer |
| Authors: | Kasai, Miku Browse this author | | Sugioka, Yosuke Browse this author | | Yamamoto, Masanori Browse this author | | Nagata, Takayuki Browse this author | | Nonomura, Taku Browse this author | | Asai, Keisuke Browse this author | | Hasegawa, Yasuchika Browse this author |
| Keywords: | temperature-sensitive paint (TSP) | | chameleon luminophore | | sensitivity characteristics | | polymer |
| Issue Date: | 4-May-2020 |
| Publisher: | MDPI |
| Journal Title: | Sensors |
| Volume: | 20 |
| Issue: | 9 |
| Start Page: | 1 of 15 |
| End Page: | 15 of 15 |
| Publisher DOI: | 10.3390/s20092623 |
| Abstract: | A temperature-sensitive paint (TSP) using a chameleon luminophore <mml:semantics>[Tb0.99Eu0.01(hfa)3(dpbp)]n</mml:semantics> is proposed. The chameleon luminophore was dispersed in isobutyl methacrylate polymer in a toluene solvent to fix it on a sample coupon. Temperature and pressure sensitivities of the chameleon luminophore-based TSP were measured using a spectrofluorophotometer. The emission for each wavelength was confirmed to be dependent on the temperature and pressure. The temperature and pressure sensitivities of the TSP were 0.81-2.8%/K and 0.08-0.12%/kPa, respectively. Higher temperature sensitivity can be obtained using the ratio of emissions from the two lanthanide ions, <mml:semantics>TbIII</mml:semantics> and <mml:semantics>EuIII</mml:semantics>. The temperature sensitivity when using the ratio of the emission intensities at 616 nm derived from <mml:semantics>EuIII</mml:semantics> and at 545 nm derived from <mml:semantics>TbIII</mml:semantics> was 3.2%/K, which was the highest value in the present study. In addition, the pressure sensitivity for the case using the ratio of the emission intensities at 616 and 545 nm was <mml:semantics>4.8x10-2%</mml:semantics>/kPa. Higher temperature sensitivity and lower pressure sensitivity than that with a single wavelength can be achieved using the ratio of the emission intensities at the two peak wavelengths derived from <mml:semantics>TbIII</mml:semantics> and <mml:semantics>EuIII</mml:semantics>. |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/78878 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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