Color - tunable photoluminescence and energy transfer of (Tb1-xMnx)3Al2(Al1-xSix)3O12:Ce3+ solid solutions for white light emitting diodes; RSC Advances; Vol. 8, iss. 63

Color - tunable photoluminescence and energy transfer of (Tb1-xMnx)3Al2(Al1-xSix)3O12:Ce3+ solid solutions for white light emitting diodes; RSC Advances; Vol. 8, iss. 63

Bibliographische Detailangaben
Parent link:RSC Advances.— , 2011-
Vol. 8, iss. 63.— 2018.— [P. 36056-36062]
Körperschaften: Национальный исследовательский Томский политехнический университет Инженерная школа новых производственных технологий Отделение материаловедения, Национальный исследовательский Томский политехнический университет Управление проректора по работе с индустриальными партнерами и предпринимательству
Weitere Verfasser: Lang Tianchun, Han Tao, Zhao Cong, Cao Shixiu, Fang Shuangqiang, Li Shuai, Korepanov V. I. Vladimir Ivanovich, Yakovlev A. N. Aleksey Nikolaevich
Zusammenfassung:Title screen
(Tb1−xMnx)3Al2(Al1−xSix)3O12:Ce3+ solid solution phosphors were synthesized by introducing the isostructural Mn3Al2(SiO4)3 (MAS) into Tb3Al5O12:Ce3+ (TbAG). Under 456 nm excitation, (Tb1-xMnx)3Al2(Al1-xSix)3O12:Ce3+ shows energy transfers (ET) in the host, which can be obtained from the red emission components to enhance color rendering. Moreover, (Tb1-xMnx)3Al2(Al1-xSix)3O12:Ce3+ (x=0-0.2) exhibits substantial spectral broadening (68 -> 86 nm) due to the 5d -> 4f transition of Ce3+ and the 4T1 -> 6A1 transition of Mn2+. The efficiency of energy transfer ([tau]T, Ce3+ -> Mn2+) gradually increases with increasing Mn2+ content, and the value reach approximately 32% at x=0.2. Namely, the different characteristics of luminescence evolution based on the effect of structural variation by substituting the (MnSi)6+ pair for the larger (TbAl)6+ pair. Therefore, with structural evolution, the luminescence of the solid solution phosphors could be tuned from yellow to orange-red, tunable by increasing the content of MAS for the applications of white light emitting diodes (wLED).
Режим доступа: по договору с организацией-держателем ресурса
Sprache:Englisch
Veröffentlicht: 2018
Schlagworte:
электронный ресурс
труды учёных ТПУ
фотолюминесценция
перенос энергии
твердые растворы
светодиоды
Online-Zugang:https://doi.org/10.1039/C8RA07994C
Format: Elektronisch Buchkapitel
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664138

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