7 records found.
Carbonized Polymer Dots‐Based Spectrally Adaptable Photonic Microbarcodes
- Article
- Creator
-
Barun Kumar Barman
;
Keisuke Watanabe
;
Tadaaki Nagao
- Keyword
- spectral barcode, optical cavity, microsphere, phosphor, authentication
- Date published
- 2025-03-22
- Updated at
- 2026-01-05 13:10:50 +0900
Accelerating Materials Discovery of Novel Europium(II)-Activated Phosphors through Machine Learning Classification of Europium Valences
- Article
- Creator
-
Yukinori Koyama
;
Yukako Kohriki
;
Masamichi Harada
;
Naoto Hirosaki
;
Takashi Takeda
- Keyword
- phosphor, machine learning, europium, oxidation state
- Date published
- 2024-12-10
- Updated at
- 2025-11-25 08:30:03 +0900
The decay curves of luminescence from Eu2+ in β-SiAlON are effectively analyzed using the general-order kinetics formula
- Article
- Creator
-
Yoriko Suda
;
Tsuyoshi Okuno
;
Takashi Takeda
;
Kohsei Takahashi
;
Naoto Hirosaki
- Keyword
- luminescence, decay curve, afterglow, phosphor, SiAlON, europium
- Date published
- 2024-05-03
- Updated at
- 2025-02-07 12:30:36 +0900
Narrow-band phosphor K2ZnP2O7:Eu2+ discovered using local structure similarity
- Article
- Creator
-
Shota Takemura
;
Yukinori Koyama
;
Takayuki Nakanishi
;
Shiro Funahashi
;
Naoto Hirosaki
;
Hidekazu Ikeno
;
Takashi Takeda
- Keyword
- phosphor, local structure similarity
- Date published
- 2022-03-25
- Updated at
- 2024-01-05 22:12:51 +0900
Characterization and properties of green-emitting beta-SiAlON : Eu2+ powder phosphors for white light-emitting diodes
- Article
- Creator
-
Naoto Hirosaki
;
Rong-Jun Xie
;
Koji Kimoto
;
Takashi Sekiguchi
;
Yoshinobu Yamamoto
;
Takayuki Suehiro
;
Mamoru Mitomo
- Keyword
- phosphor, oxynitride, LEDs, luminescence
- Date published
- 2005-05-23
- Updated at
- 2024-01-05 22:13:08 +0900
Narrow-Band Emitting Phosphor Na2Cs2Sr(B9O15)2:Eu2+ Discovered from Local Structure Similarity with Sulfate Phosphor
- Article
- Creator
-
Shota Takemura
;
Yukinori Koyama
;
Takayuki Nakanishi
;
Shiro Funahashi
;
Naoto Hirosaki
;
Hidekazu Ikeno
;
Takashi Takeda
- Keyword
- phosphor, narrow-band emission, local structure similarity, Eu2+
- Date published
- 2022-12-29
- Updated at
- 2024-01-05 22:12:07 +0900
Rapid discovery of new Eu2+-activated phosphors with a designed luminescence color using a data-driven approach
- Article
- Creator
-
Yukinori Koyama
;
Hidekazu Ikeno
;
Masamichi Harada
;
Shiro Funahashi
;
Takashi Takeda
;
Naoto Hirosaki
- Keyword
- phosphor, materials design, machine learning, luminescence, emission spectrum, Eu2+
- Date published
- 2022-11-29
- Updated at
- 2024-01-05 22:11:23 +0900