Photoluminescence properties of BaSiF6:Eu3+,Eu3+/K+and Eu3+/Tb3+co-doped phosphors

When Eu3+ and Tb3+ ions are co-doped into the ZBH matrix, the phosphor yielded tunable emissions. The concentration of rare earth doped can change the composition and further change the morphology and the luminescence properties.

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Luminescence Properties of Rare-Earth Doped α-SiAlONs

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.317-318.797 ◽

2006 ◽

Vol 317-318 ◽

pp. 797-802

Author(s):

Rong Jun Xie ◽

Mamoru Mitomo ◽

Naoto Hirosaki

Keyword(s):

Rare Earth ◽

Rare Earths ◽

Room Temperature ◽

Luminescence Properties ◽

Activator Concentration ◽

Photoluminescence Properties ◽

Host Crystal ◽

Emission Properties ◽

White Leds ◽

Rare Earth Doped

Rare-earth doped Ca-α-SiAlON phosphors, with the compositions of (Ca1-3/2xREx)m/2Si12-m-nAlm+nOnN16-n (RE = Ce, Sm, Eu, Tb, Yb and Dy, 0.5 ≤ m = 2n ≤ 3.0), were prepared by reaction at 1700oC for 2h under 10 atm N2. The concentration of rare earths varied from 3 to 30 at% with respect to Ca. The photoluminescence properties of the powders were investigated at room temperature. The results show that (i) strong visible emissions are observed in rare-earth doped Ca-α-SiAlONs; (ii) the emission properties can be optimized by tailoring the activator concentration and the composition of the α-SiAlON host crystal; and (iii) the yellow Eu2+-doped Ca-α-SiAlON phosphors can be used in warm white LEDs.

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Preparations, Structures and Luminescence Properties of Penta‐rare‐earth Incorporated Tetravacant Dawson Selenotungstates and Their Ho 3+ /Tm 3+ Co‐doped Derivatives

Chemistry - An Asian Journal ◽

10.1002/asia.202000131 ◽

2020 ◽

Vol 15 (7) ◽

pp. 1156-1166

Author(s):

Yan Zhang ◽

Yi‐Fan Liu ◽

Xin Xu ◽

Li‐Juan Chen ◽

Jun‐Wei Zhao

Keyword(s):

Rare Earth ◽

Luminescence Properties ◽

Co Doped

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On enhancement and control of green emission of rare earth co-doped hydroxyapatite nanoparticles: synthesis and upconversion luminescence properties

New Journal of Chemistry ◽

10.1039/d0nj04847j ◽

2021 ◽

Author(s):

Hoang Nhu Van ◽

Tu Le Manh ◽

Dung Do Thi Thuy ◽

Vuong-Hung Pham ◽

Duy-Hung Nguyen ◽

...

Keyword(s):

Rare Earth ◽

Hydrothermal Synthesis ◽

Low Temperature ◽

Upconversion Luminescence ◽

Green Emission ◽

Luminescence Properties ◽

Hydroxyapatite Nanoparticles ◽

Nanoparticles Synthesis ◽

And Control ◽

Co Doped

In this work, low-temperature hydrothermal synthesis of a series of xMo–1%Er–10%Yb (x:mol%) doped hydroxyapatite (HA) phosphors was studied.

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Controlled synthesis and upconversion luminescence properties of heterogeneous isomorphism Yb3+/Er3+ co-doped Na0.9Ca0.9Gd1.1F6 nanorods with multiple luminescence centers

CrystEngComm ◽

10.1039/d1ce01435h ◽

2021 ◽

Author(s):

Ruijun Tang ◽

Jianxun Wang ◽

Yueshan Xu ◽

Shasha Wang ◽

Gejihu De

Keyword(s):

Rare Earth ◽

Upconversion Luminescence ◽

Luminescence Properties ◽

Controlled Synthesis ◽

Luminescence Centers ◽

Luminescence Efficiency ◽

Co Doped ◽

Biomedical Fields ◽

Luminescent Nanocrystals

Rare-earth upconversion luminescent nanocrystals (UCLNCs) have limited their application in biomedical fields due to their low luminescence efficiency. Here, heterogeneous isomorphism Na0.9Ca0.9Gd1.1F6:Yb3+/Er3+ nanorods are successfully obtained using a mild solvothermal...

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