2024-03-29T07:28:21Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/808062022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Large red-shift of luminescence from BaCN2:Eu2+ red phosphor under high pressureMasubuchi, YujiNishitani, SayakaMiyazaki, SuzukaHua, HansenUeda, JunpeiHiguchi, MikioTanabe, SetsuhisaphotoluminescenceBaCN2optical pressure sensorWe 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.IOP PublishingJournal Articleapplication/pdfhttp://hdl.handle.net/2115/80806https://eprints.lib.hokudai.ac.jp/dspace/bitstream/2115/80806/1/Manuscript_BaCN2Eu-Revised-WithoutHighlight.pdf1882-0778Applied Physics Express (APEX)1340420092020-04-01enginfo:doi/10.35848/1882-0786/ab8055©2020 The Japan Society of Applied Physicsauthor