Presentation Information
[17p-PA6-7]Identification of UV wavelength using visible luminescence changes exhibited by metal oxide phosphors
〇(M1)Yutaro Kori1, Nozomi Minomura1, Ryo Ogasawara2, Fumito Fujishiro2, Yoichiro Kai3, Kazunobu Kojima3, Masatsugu Oishi1 (1.Tokushima Univ., 2.Kochi Univ., 3.Osaka Univ.)
Keywords:
phosphor,ultraviolet,perovskite
In recent years, there has been an increasing demand for devices capable of detecting light wavelengths, including the ultraviolet region, with high precision; however, existing miniature spectrometers based on semiconductor devices are costly. In this study, we focus on a novel phosphor exhibiting excitation-wavelength-dependent emission, in which the emission spectrum changes significantly depending on the excitation wavelength. Since the phosphor itself possesses wavelength discrimination capability, this approach is expected to provide a new wavelength detection method as an alternative to conventional spectrometers. This presentation reports the optical properties of the phosphor, analysis of its excitation-wavelength dependence, and the fabrication and evaluation of a prototype wavelength discrimination device.