Effect of Tb3+ ion concentration on the up-conversion and down-conversion luminescence properties of the Yb3+/Ho3+/Tb3+ tri-doped SiO2–Al2O3–Y2O3–NaF–CaF2 glasses

2021 ◽  
Vol 121 ◽  
pp. 111567 ◽  
Author(s):  
Songxuan Liu ◽  
Zhiwei Luo ◽  
Ping Zhang ◽  
Weicheng Lei ◽  
Ziyou Zhou ◽  
...  
Keyword(s):  
Ion Concentration ◽  
Luminescence Properties ◽  
Down Conversion

One-step surfactant-free synthesis of KSc2F7 microcrystals: controllable phases, rich morphologies and multicolor down conversion luminescence properties

CrystEngComm ◽  
2018 ◽  
Vol 20 (28) ◽  
pp. 3978-3986 ◽  
Author(s):  
Jie Xiong ◽  
Jie Yu ◽  
Yufeng Zhang ◽  
Wenpeng Xia ◽  
Shanshan Hu ◽  
...  
Keyword(s):  
Ion Concentration ◽  
Luminescence Properties ◽  
Fluoride Ion ◽  
One Step ◽  
Down Conversion

The obtained products show controlled phases and abundant morphologies with the increase of fluoride ion concentration.

Bi3+-Sensitized La2Zr2O7:Er3+ Transparent Ceramics with Efficient Up/Down-Conversion Luminescence Properties for Photonic Applications

2019 ◽  
Vol 124 (1) ◽  
pp. 913-920 ◽  
Author(s):  
Dan Ruan ◽  
Zhangyi Huang ◽  
Zhe Tang ◽  
Yutong Zhang ◽  
Xiuling Wang ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Transparent Ceramics ◽  
Down Conversion

scholarly journals Post annealing induced manipulation of phase and upconversion luminescence of Cr3+ doped NaYF4:Yb,Er crystals

RSC Advances ◽  
2019 ◽  
Vol 9 (17) ◽  
pp. 9364-9372 ◽  
Author(s):  
Shivanand H. Nannuri ◽  
Suresh D. Kulkarni ◽  
Subash C. K. ◽  
Santhosh Chidangil ◽  
Sajan D. George
Keyword(s):  
Upconversion Luminescence ◽  
Ion Concentration ◽  
Luminescence Properties ◽  
Precipitation Method ◽  
Post Annealing ◽  
Co Precipitation

Co-dopant (Cr3+ ion) concentration as well as post annealing found to change the structural as well as luminescence properties of Cr3+ ion doped NaY80%F4:Yb17%,Er3% prepared via a co-precipitation method.

Synthesis and down-conversion luminescence properties of Er3+/Yb3+ co-doped AlF3–PbF2–CaF2 powders

2015 ◽  
Vol 46 ◽  
pp. 77-81 ◽  
Author(s):  
Fangchao Liu ◽  
Qun Han ◽  
Tiegen Liu ◽  
Yaofei Chen ◽  
Yang Du ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Down Conversion ◽  
Co Doped

Effect of erbium ion concentration on structural and luminescence properties of lead borosilicate glasses for fiber amplifiers

Luminescence ◽  
2017 ◽  
Vol 33 (1) ◽  
pp. 71-78 ◽  
Author(s):  
Midde Reddi Babu ◽  
N. Madhusudhana Rao ◽  
A. Mohan Babu
Keyword(s):  
Fiber Amplifiers ◽  
Ion Concentration ◽  
Luminescence Properties ◽  
Borosilicate Glasses ◽  
Erbium Ion

Enhanced Luminescence Properties of Hexagonal-Phase NaYF4: Eu3+ Microrods by Annealing Treatment

2011 ◽  
Vol 335-336 ◽  
pp. 1009-1013
Author(s):  
Wen Kui Zhang ◽  
Xian Xian Weng ◽  
Hui Huang ◽  
Xin Yong Tao
Keyword(s):  
Hexagonal Phase ◽  
Annealing Treatment ◽  
Luminescence Properties ◽  
Hydrothermal Route ◽  
Uniform Size ◽  
High Crystallinity ◽  
Pristine Sample ◽  
Microstructure Morphology ◽  
Size And Morphology ◽  
Down Conversion

Hexagonal phase NaYF4: Eu3+ materials were successfully synthesized by a facile EDTA-assisted hydrothermal route. The microstructure, morphology and luminescence property of the as-synthesized samples were characterized by XRD, XPS, SEM, TEM, HRTEM and photoluminescence (PL) spectra. The pristine NaYF4: Eu3+ microprisms have uniform size and morphology with 3-4 micrometers in length and ca. 500 nm in diameter. The annealing treatment afterwards achieved high crystallinity, and moreover, had a remarkable influence on morphologies of the NaYF4: Eu3+ sample. In comparison with the pristine sample, the annealed NaYF4: Eu3+ microcrystals had a markedly enhancement of down-conversion (DC) luminescence properties, which may be due to the high crystallinity and large surface roughness resulted from annealing treatment.

scholarly journals Synthesis and Luminescence Properties of La2O2S:RE3+ (RE3+ = Ce3+, Dy3+, Eu3+ and Tb3+) Submicron Size Phosphors for Lamp Industry

2020 ◽  
Vol 9 (4) ◽  
pp. 1898-1907
Keyword(s):  
Solid State ◽  
Broad Band ◽  
Blue Emission ◽  
Luminescence Properties ◽  
Excitation Spectra ◽  
Yellow Band ◽  
Broad Band Emission ◽  
Band Emission ◽  
Ft Ir ◽  
Down Conversion

RE3+(RE3+ = Ce3+, Dy3+, Eu3+ and Tb3+) doped La2O2S phosphors was synthesized by solid state flux fusion method and their down conversion spectral properties were studied as a function different RE3+ concentrations and reported in this paper. The solid state flux fusion results in well crystallized hexagonal shaped phosphor particles. The samples were characterized by XRD, SEM, FT-IR photoluminescence (PL) and CIE colour co-ordinates techniques. The lanthanum oxysulphide (La2O2S) phosphor doped with Ce3+ shows broad band emission with peak at 390 nm and 415 nm when excited at 340 nm excitation. La2O2S:Dy3+ shows efficient blue and yellow band emissions at 480 nm and 572 nm. La2O2S:Eu3+ phosphor shows an orange and red emission at 590 nm and 615 nm. Whereas La2O2S:Tb3+ phosphor shows weak blue emission at 488 nm and strong green 545 nm. The excitation spectra used for the La2O2S:RE3+ (where RE3+ = Ce3+, Dy3+, Eu3+ and Tb3+) phosphors is in the near UV region extending from 350 to 400 nm, which is characteristics of near UV excited LED. The effect of the RE3+ (RE3+= Ce3+, Dy3+ , Eu3+ and Tb3+) concentration on the luminescence properties of La2O2S:RE3+ phosphors were also studied. The investigated prepared La2O2S phosphors may be suitable for a near UV excited W-LED. Keywords: Oxysulphide, SEM, FT-IR, PL, SSL, CIE.

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