Zobrazeno 1 - 10
of 484
pro vyhledávání: '"Naoto Hirosaki"'
Publikováno v:
Science and Technology of Advanced Materials, Vol 25, Iss 1 (2024)
New phosphors are consistently in demand for advances in solid-state lighting and displays. Conventional trial-and-error exploration experiments for new phosphors require considerable time. If a phosphor host suitable for the target luminescent prope
Externí odkaz:
https://doaj.org/article/35aec5524e8e43559b8b2775ac1948b5
Autor:
Mehdi Estili, Rong-Jun Xie, Kohsei Takahashi, Shiro Funahashi, Tohru S. Suzuki, Naoto Hirosaki
Publikováno v:
Science and Technology of Advanced Materials, Vol 25, Iss 1 (2024)
Nitrides and oxynitrides isostructural to α-Si3N4 (M-α-SiAlON, M = Sr, Ca, Li) possess superb thermally stable photoluminescence (PL) properties, making them reliable phosphors for high-power solid-state lighting. However, the synthesis of phase-pu
Externí odkaz:
https://doaj.org/article/5b9bde5496ad4c5cb0683dc5719d63f5
Autor:
Le Wang, Guozhen Ding, Shuxing Li, Shiro Funahashi, Takashi Takeda, Lu Yin, Pei Liang, Naoto Hirosaki, Rong-Jun Xie
Publikováno v:
Journal of Advanced Ceramics, Vol 12, Iss 4, Pp 734-746 (2023)
Discovery of new phosphors with desired properties is of great significance for developing high optical quality solid-state lighting. The single-particle-diagnosis approach is an effective way to search novel phosphors by analyzing tiny single crysta
Externí odkaz:
https://doaj.org/article/bb8c891e33a34f759e3bff9446ff1917
Autor:
Shota Takemura, Takashi Takeda, Takayuki Nakanishi, Yukinori Koyama, Hidekazu Ikeno, Naoto Hirosaki
Publikováno v:
Science and Technology of Advanced Materials, Vol 22, Iss 1, Pp 185-193 (2021)
To efficiently search for novel phosphors, we propose a dissimilarity measure of local structure using the Wasserstein distance. This simple and versatile method provides the quantitative dissimilarity of a local structure around a center ion. To cal
Externí odkaz:
https://doaj.org/article/7a16dfac4bab4e8c9edc18c6ae7491a1
Autor:
Hiromichi Chima, Naoyuki Shiokawa, Keisuke Seto, Kohsei Takahashi, Naoto Hirosaki, Takayoshi Kobayashi, Eiji Tokunaga
Publikováno v:
Applied Sciences, Vol 10, Iss 3, p 1008 (2020)
Highly sensitive broadband photothermal spectroscopy with a white-light lamp as the excitation source was developed by combining a Sagnac interferometer and balanced detection with a photothermal deflection method. A probe beam was split by a birefri
Externí odkaz:
https://doaj.org/article/5d8e79e449b04db895cf472636dbc5e7
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 2, Pp i14-i14 (2010)
The structure of the title compound, Sr-bearing oxonitridoaluminosilicate (Sr-sialon), contains two types of channels running along the a axis, with the three unique Sr atoms (coordinatioon number seven) residing in the larger one. The channels cross
Externí odkaz:
https://doaj.org/article/394df5ea9c484793abccda1ffa839bf2
Autor:
Yukinori Koyama, Hidekazu Ikeno, Masamichi Harada, Shiro Funahashi, Takashi Takeda, Naoto Hirosaki
Publikováno v:
Materials Advances. 4:231-239
Machine learning in conjunction with validation experiments uncovers new Eu2+-activated phosphor materials with a designed green-color luminescence.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb208fbc8835de6b139ac710134c05bf
https://doi.org/10.1039/d2ma00881e
https://doi.org/10.1039/d2ma00881e
Autor:
Shota Takemura, Yukinori Koyama, Takayuki Nakanishi, Shiro Funahashi, Naoto Hirosaki, Hidekazu Ikeno, Takashi Takeda
Publikováno v:
The Journal of Physical Chemistry Letters. 13:11878-11882
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a5cb18b736a1b0c0ed52feb01651bfe
https://doi.org/10.1021/acs.jpclett.2c02889
https://doi.org/10.1021/acs.jpclett.2c02889
Autor:
Yuuki Kitagawa, Jumpei Ueda, Jian Xu, Takayuki Nakanishi, Takashi Takeda, Naoto Hirosaki, Setsuhisa Tanabe
Publikováno v:
Physical Chemistry Chemical Physics. 24:4348-4357
Eu2+-Trapped exciton states in YSiO2N show anomalous deep-red to near-infrared luminescence under violet-blue light illumination.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6148192ea7a365b43a2072088f7f6dc4
https://doi.org/10.1039/d1cp05242j
https://doi.org/10.1039/d1cp05242j
Autor:
Yukinori Koyama, Hidekazu Ikeno, Naoto Hirosaki, Takashi Takeda, Takayuki Nakanishi, Shota Takemura
Publikováno v:
Science and Technology of Advanced Materials, Vol 22, Iss 1, Pp 185-193 (2021)
Science and Technology of Advanced Materials
article-version (VoR) Version of Record
Science and Technology of Advanced Materials
article-version (VoR) Version of Record
To efficiently search for novel phosphors, we propose a dissimilarity measure of local structure using the Wasserstein distance. This simple and versatile method provides the quantitative dissimilarity of a local structure around a center ion. To cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::52b8e3e54ec1cda1bcbe0bb9c4883f97
https://doaj.org/article/7a16dfac4bab4e8c9edc18c6ae7491a1
https://doaj.org/article/7a16dfac4bab4e8c9edc18c6ae7491a1