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Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
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Sensors and Materials
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is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.
Instructions to authors
English 日本語
Instructions for manuscript preparation
English 日本語
Template
English
Publisher
MYU K.K.
Sensors and Materials
1-23-3-303 Sendagi,
Bunkyo-ku, Tokyo 113-0022, Japan
Tel: 81-3-3827-8549
Fax: 81-3-3827-8547
MYU Research, a scientific publisher, seeks a native English-speaking proofreader with a scientific background. B.Sc. or higher degree is desirable. In-office position; work hours negotiable. Call 03-3827-8549 for further information.
MYU Research
(proofreading and recording)
MYU K.K.
(translation service)
The Art of Writing Scientific Papers
(How to write scientific papers)
(Japanese Only)
Sensors and Materials, Volume 38, Number 2(1) (2026)
Copyright(C) MYU K.K.
Copyright(C) MYU K.K.
|
pp. 663-672
S&M4335 Research paper https://doi.org/10.18494/SAM6070 Published: February 6, 2026 Synthesis and Photoluminescence Characterization of Eu-doped Tb3Al5−xGaxO12 Nanoparticle Scintillators via Sol–Gel Method for Biological Applications [PDF] Yuma Takahashi, Hiroki Kawamoto, Yutaka Fujimoto, Keisuke Asai, and Masanori Koshimizu (Received October 31, 2025; Accepted December 15, 2025) Keywords: scintillator, nanoparticle, TAGG, garnet, phosphor
Red-emitting Eu-doped Tb3AlxGa5-xO12 (TAGG) nanoparticles were synthesized via a sol–gel method to develop scintillators applicable to in vivo use. The nanoparticles had diameters of approximately 100–200 nm. X-ray diffraction patterns indicate that the samples possessed a garnet structure. Photoluminescence (PL) spectra exhibited an emission peak mainly at 589 nm, corresponding to the 5D0→7F1 transitions of Eu3+ ions. PL quantum yield reached over 90% at the maximum. Upon X-ray irradiation, all the samples exhibited red emission. These results indicate that the developed nanoparticles are applicable as biocompatible scintillators for in vivo applications, exhibiting scintillation in the red wavelength region mainly at 592 and 709 nm.
Corresponding author: Masanori Koshimizu  This work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Yuma Takahashi, Hiroki Kawamoto, Yutaka Fujimoto, Keisuke Asai, and Masanori Koshimizu, Synthesis and Photoluminescence Characterization of Eu-doped Tb3Al5−xGaxO12 Nanoparticle Scintillators via Sol–Gel Method for Biological Applications, Sens. Mater., Vol. 38, No. 2, 2026, p. 663-672. |
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