title: Enhanced Luminescence Performances of Tunable Lu3-xYxAl5O12:Mn4+Red Phosphor by Ions of Rn+(Li+, Na+, Ca2+, Mg2+, Sr2+, Sc3+).
abstract: A novel red-emitting Lu3Al5O12:Mn4+(LuAG:Mn4+) phosphor was synthesized by a solid-state reaction. The emission-band position is shifted to red region by gradually increasing the amount of substitution of Lu3+for Y3+, eventually yielding fully Y3Al5O12:Mn4+(YAG:Mn4+). The compared structural and optical properties of the phosphors were investigated. From the experimentally measured spectroscopic data, crystal field parameter Dq and Racah parameters B and C are calculated to be 2127, 1464, and 3620 cm-1in LuAG:Mn4+, respectively. In YAG:Mn4+, Dq, B, and C are calculated to be 2082, 1524, and 3740 cm-1, respectively. Impressively, Ca2+/Li+/Mg2+/Sr2+/Sc3+/Na+dopants were found to be beneficial for enhancing Mn4+luminescence, and the related mechanisms were systematically discussed.
authors.affiliation: Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
authors.forename: Jiaqi
authors.initials: J
authors.lastname: Long
authors.affiliation: Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
authors.forename: Yuzhen
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
authors.forename: Ran
authors.initials: R
authors.lastname: Ma
authors.affiliation: Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
authors.forename: Chaoyang
authors.initials: C
authors.lastname: Ma
authors.affiliation: Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
authors.forename: Xuanyi
authors.initials: X
authors.lastname: Yuan
authors.affiliation: Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
authors.forename: Zicheng
authors.initials: Z
authors.lastname: Wen
authors.affiliation: Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
authors.forename: Miaomiao
authors.initials: M
authors.lastname: Du
authors.affiliation: Beijing Key Laboratory of Optoelectronic Functional Materials & Micro-Nano Devices, Department of Physics, Renmin University of China , Beijing 100872, China.
authors.forename: Yongge
authors.identifier: http://orcid.org/0000-0002-1250-1641
authors.initials: Y
authors.lastname: Cao