pp. 845-850
S&M1243 Research Paper of Special Issue https://doi.org/10.18494/SAM.2016.1332 Published: August 24, 2016 Thermosensitive Luminescent Lanthanide Complex with Two Photosensitized Ligands [PDF] Ayako Nakajima, Takayuki Nakanishi, Yuichi Kitagawa, Koji Fushimi, and Yasuchika Hasegawa (Received January 13, 2016; Accepted May 16, 2016) Keywords: thermosensor, lanthanide complex, energy transfer, luminescence
A novel thermosensitive luminescent lanthanide coordination compound was successfully synthesized. The coordination compound consists of Eu, Tb, and two photosensitized organic ligands [hexafluoroacetylacetone (hfa) and tris(p-carboxyphenyl) phosphine oxide (TPO)]. The Eu/Tb mixed coordination compound shows different luminescent colors depending on the temperature (green luminescence at 300 K and yellow luminescence at 450 K). In this study, emission spectra were measured at 300, 350, 400, and 400 K, and the ratio of (Eu/Tb) luminescence intensity at each temperature was estimated. The temperature-dependent luminescence is caused by the two differentially photosensitized organic ligands, hfa and TPO. These results may lead to the development of novel thermosensing devices using lanthanide luminescence.
Corresponding author: Takayuki NakanishiCite this article Ayako Nakajima, Takayuki Nakanishi, Yuichi Kitagawa, Koji Fushimi, and Yasuchika Hasegawa, Thermosensitive Luminescent Lanthanide Complex with Two Photosensitized Ligands, Sens. Mater., Vol. 28, No. 8, 2016, p. 845-850. |