Discovery of an Environmentally Friendly Water-Soluble Luminous Material with Interstitial Site Occupancy

Discovery of an Environmentally Friendly Water-Soluble Luminous Material with Interstitial Site Occupancy

Podrobná bibliografie
Parent link:ACS Sustainable Chemistry and Engineering
Vol. 9, iss. 7.— 2021.— [P. 2717–2726]
Korporativní autor: Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения
Další autoři: Wang Jinyu, Lang Tianchun, Fang Shuangqiang, Khan Tao, Cai Mingsheng, Wang Mingguang, Cao Shixiu, Peng Lingling, Bitao Liu, Polisadova E. F. Elena Fyodorovna, Yakovlev A. N. Aleksey Nikolaevich
Shrnutí:Title screen
As an essential precursor, K2MnF6 plays an important role in the preparation of Mn4+-activated fluoride materials, but its deterioration in pure water hampers development of a green route. Herein, we report a simple and high-speed synthetic route to obtain an environmentally friendly water-soluble KHF2:Mn4+ luminous material by engineering the interstitial Mn4+ site, which is confirmed by combining with DFT, XRD Rietveld refinement data, solid-state NMR, Raman spectrum, and TG/DSC curves. Meanwhile, KHF2:Mn4+ has red emissions centered at ~602.2, 611.2, 615.6, 633.2, 637.2, and 650.0 nm, shows a zero-thermal-quenching characteristic and good quantum efficiency of 65%. KHF2:Mn4+, and as a green ion-exchange luminous material can be dissolved into pure water to produce anionic [MnF6]2- complexes for preparing Mn4+-activated fluoride phosphors such as K2GeF6, K2SiF6, K2TiF6, etc. This discovery reveals KHF2:Mn4+ is a potential candidate to substitute K2MnF6 to develop a green route for Mn4+-activated fluoride inorganic luminescent materials.
Режим доступа: по договору с организацией-держателем ресурса
Vydáno: 2021
Témata:
труды учёных ТПУ
электронный ресурс
environmentally friendly luminous material
interstitial site occupancy
photoluminescence Mn4+
чистые материалы
фотолюминесценция
люминофоры
On-line přístup:https://doi.org/10.1021/acssuschemeng.0c07889
Médium: Elektronický zdroj Kapitola
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665295

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