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Large red-shift of luminescence from BaCN2:Eu2+ red phosphor under high pressure

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Title: Large red-shift of luminescence from BaCN2:Eu2+ red phosphor under high pressure
Authors: Masubuchi, Yuji Browse this author →KAKEN DB
Nishitani, Sayaka Browse this author
Miyazaki, Suzuka Browse this author
Hua, Hansen Browse this author
Ueda, Junpei Browse this author
Higuchi, Mikio Browse this author →KAKEN DB
Tanabe, Setsuhisa Browse this author
Keywords: photoluminescence
optical pressure sensor
Issue Date: 1-Apr-2020
Publisher: IOP Publishing
Journal Title: Applied Physics Express (APEX)
Volume: 13
Issue: 4
Start Page: 042009
Publisher DOI: 10.35848/1882-0786/ab8055
Abstract: We report a new material, BaCN2:Eu2+ for a very sensitive optical pressure sensor, 50 times more sensitive than ruby. Photoluminescence spectra of the BaCN2:Eu2+ phosphor was measured under hydrostatic pressures from ambient pressure to 5.34 GPa at room temperature. The peak wavelength of the luminescence was drastically red-shifted at a rate of 19 nm GPa(-1), which is approximately 50 times larger than that of the ruby, most commonly used as a pressure sensor in the high-pressure experiments. This large shift of the luminescence wavelength is suitable for application in optical pressure sensors for the high-pressure experiments without a high-resolution monochromator.
Rights: ©2020 The Japan Society of Applied Physics
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 鱒渕 友治

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