pp. 1453-1459
S&M2193 Research Paper of Special Issue https://doi.org/10.18494/SAM.2020.2746 Published: April 20, 2020 Development and Performance Test of Deep Ultraviolet–Visible Photoacoustic Spectroscopy System for Nonradiative Deactivation Characterization in Phosphor Materials [PDF] Yutaka Fujimoto, Daisuke Nakauchi, Takayuki Yanagida, Masanori Koshimizu, Haruki Fukada, Yamato Hayashi, and Keisuke Asai (Received December 19, 2019; Accepted February 25, 2020) Keywords: photoacoustic spectroscopy, nonradiative deactivation, scintillator, Ce:Y3Al5O12
We developed a deep-ultraviolet–visible photoacoustic spectroscopy system for the evaluation of nonradiative deactivation in phosphor materials. The system consists of a Xenon arc lamp of 300 W with an aspherical condensing mirror, a monochromator, a mechanical chopper to modulate the monochromatic light at a certain frequency of 10–100 Hz, and a single optical fiber. The acoustic signal from the sample was counted with an electret microphone connected to a preamplifier, a sound level meter unit, and a lock-in amplifier. 0.25, 0.5, and 1.0 mol% Ce-doped Y3Al5O12 crystalline samples were evaluated for the performance test. From the evaluation, an inverse correlation among fluorescence quantum efficiency, scintillation light yield, and photoacoustic signal intensity was experimentally confirmed.
Corresponding author: Yutaka FujimotoThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yutaka Fujimoto, Daisuke Nakauchi, Takayuki Yanagida, Masanori Koshimizu, Haruki Fukada, Yamato Hayashi, and Keisuke Asai, Development and Performance Test of Deep Ultraviolet–Visible Photoacoustic Spectroscopy System for Nonradiative Deactivation Characterization in Phosphor Materials, Sens. Mater., Vol. 32, No. 4, 2020, p. 1453-1459. |