15 records found.
Orthosilicates with glaserite-type crystal structures: Na2BaZr[SiO4]2 and Na2BaHf[SiO4]2
- Journal article
- Creator
-
;Hisanori Yamane (author) (Search by this author)National Institute for Materials ScienceShiro Funahashi (author) (Search by this author)National Institute for Materials Science
;
Naoto Hirosaki (author) (Search by this author)National Institute for Materials Science
;
Takashi Takeda (author) (Search by this author)National Institute for Materials Science
- Keyword
- crystal structure, glaserite-type structure, orthosilicate, single-crystal X-ray diffraction, twin analysis
- Date published
- 2025-05-01
- Updated at
- 2026-01-05 13:14:40 +0900
The decay curves of luminescence from Eu2+ in β-SiAlON are effectively analyzed using the general-order kinetics formula
- Journal article
- Creator
-
;Yoriko Suda (author) (Search by this author);Tsuyoshi Okuno (author) (Search by this author)Takashi Takeda (author) (Search by this author)National Institute for Materials Science
;
Kohsei Takahashi (author) (Search by this author)National Institute for Materials Science
;
Naoto Hirosaki (author) (Search by this author)National Institute for Materials Science
- Keyword
- luminescence, decay curve, afterglow, phosphor, SiAlON, europium
- Date published
- 2024-05-03
- Updated at
- 2025-02-07 12:30:36 +0900
Photoluminescence of perovskite-type Cr<sup>3+</sup>-activated phosphors in the La–Al–Ti–O system
- Journal article
- Creator
-
Akihiro Nakanishi (author) (Search by this author)National Institute for Materials Science
;
Takayuki Nakanishi (author) (Search by this author)National Institute for Materials Science
;
Naoto Hirosaki (author) (Search by this author)National Institute for Materials Science
;
Koji Morita (author) (Search by this author)National Institute for Materials Science
;
Takashi Takeda (author) (Search by this author)National Institute for Materials Science
- Keyword
- Cr3+-activated phosphor, Near-infrared emission, Oxide, Solid state reaction
- Date published
- 2026-03-01
- Updated at
- 2026-06-16 11:29:50 +0900
Accelerating Materials Discovery of Novel Europium(II)-Activated Phosphors through Machine Learning Classification of Europium Valences
- Journal article
- Creator
-
Yukinori Koyama (author) (Search by this author)
;
Yukako Kohriki (author) (Search by this author)
;
Masamichi Harada (author) (Search by this author)
;
Naoto Hirosaki (author) (Search by this author)
;
Takashi Takeda (author) (Search by this author)
- Keyword
- phosphor, machine learning, europium, oxidation state
- Date published
- 2024-12-10
- Updated at
- 2025-11-25 08:30:03 +0900
Exploring new useful phosphors by combining experiments with machine learning
- Journal article
- Creator
-
Takashi Takeda (author) (Search by this author)
;
Yukinori Koyama (author) (Search by this author)
;
;Hidekazu Ikeno (author) (Search by this author)Satoru Matsuishi (author) (Search by this author)
;
Naoto Hirosaki (author) (Search by this author)
- Keyword
- Phosphor, High-throughput experiment, Machine learning, Local structure, Europium
- Date published
- 2024-12-31
- Updated at
- 2024-12-05 16:30:28 +0900
Dissimilarity measure of local structure in inorganic crystals using Wasserstein distance to search for novel phosphors
- Journal article
- Creator
-
Shota Takemura (author) (Search by this author)
https://orcid.org/0000-0003-3462-0032
(unauthenticated)
National Institute for Materials Science
;
Takashi Takeda (author) (Search by this author)National Institute for Materials Science
;
Takayuki Nakanishi (author) (Search by this author)National Institute for Materials Science
;
Yukinori Koyama (author) (Search by this author)National Institute for Materials Science
;
;Hidekazu Ikeno (author) (Search by this author)Naoto Hirosaki (author) (Search by this author)National Institute for Materials Science
- Keyword
- phosphors, local structure, similarity measure, Wasserstein distance
- Date published
- 2021-12-31
- Updated at
- 2024-01-05 22:12:32 +0900
Rapid discovery of new Eu2+-activated phosphors with a designed luminescence color using a data-driven approach
- Journal article
- Creator
-
Yukinori Koyama (author) (Search by this author)Research and Services Division of Materials Data and Integrated System, National Institute for Materials Science
;
;Hidekazu Ikeno (author) (Search by this author)Osaka Metropolitan University;Masamichi Harada (author) (Search by this author)Research Center for Functional Materials, National Institute for Materials Science;Shiro Funahashi (author) (Search by this author)Research Center for Functional Materials, National Institute for Materials ScienceTakashi Takeda (author) (Search by this author)Research Center for Functional Materials, National Institute for Materials Science
;
Naoto Hirosaki (author) (Search by this author)Research Center for Functional Materials, National Institute for Materials Science
- Keyword
- phosphor, materials design, machine learning, luminescence, emission spectrum, Eu2+
- Date published
- 2022-11-29
- Updated at
- 2024-01-05 22:11:23 +0900
An interpretable linear model bridging data-driven analysis and chemical intuition for Eu 2+ -phosphor emissions
- Journal article
- Creator
-
Yukinori Koyama (author) (Search by this author)
;
;Ryusei Hayasaka (author) (Search by this author)Yuta Matsushima (author) (Search by this author)
https://orcid.org/0000-0001-5826-1551
(unauthenticated)
;
Takayuki Nakanishi (author) (Search by this author)
;
Takashi Takeda (author) (Search by this author)
;
Naoto Hirosaki (author) (Search by this author)
- Keyword
- materials informatics, phosphor, europium, machine learning, interpretability, linear model, composition-based feature
- Date published
- 2026-12-31
- Updated at
- 2026-07-07 14:31:04 +0900
Characterization and properties of green-emitting beta-SiAlON : Eu2+ powder phosphors for white light-emitting diodes
- Journal article
- Creator
-
Naoto Hirosaki (author) (Search by this author)National Institute for Materials Science
;
Rong-Jun Xie (author) (Search by this author)
https://orcid.org/0000-0002-8387-1316
(unauthenticated)
National Institute for Materials Science
;
Koji Kimoto (author) (Search by this author)National Institute for Materials Science
;
Takashi Sekiguchi (author) (Search by this author)
https://orcid.org/0000-0002-7365-9979
(unauthenticated)
National Institute for Materials Science
;
;Yoshinobu Yamamoto (author) (Search by this author)National Institute for Materials ScienceTakayuki Suehiro (author) (Search by this author)National Institute for Materials Science
;
Mamoru Mitomo (author) (Search by this author)
- Keyword
- phosphor, oxynitride, LEDs, luminescence
- Date published
- 2005-05-23
- Updated at
- 2024-01-05 22:13:08 +0900
Preparation and photoluminescence of Eu2+ and Eu3+-doped NaLuO2
- Journal article
- Creator
-
;Hisanori Yamane (author) (Search by this author)Akihiro Nakanishi (author) (Search by this author)
;
Shiro Funahashi (author) (Search by this author)
;
Takayuki Nakanishi (author) (Search by this author)
;
Kohsei Takahashi (author) (Search by this author)
;
Naoto Hirosaki (author) (Search by this author)
;
Takashi Takeda (author) (Search by this author)
- Keyword
- Solid state reaction, Ternary oxide, Powder X-ray diffraction, Rietveld analysis, Photoluminescence, Eu2+ and Eu3+ emission center
- Date published
- 2025-07-01
- Updated at
- 2025-12-05 12:30:12 +0900