Simultaneous enhancement of photoluminescence and afterglow luminescence through Bi3+ co-doping in the Sr3Al2O5Cl2:Eu2+ phosphor

2018 ◽  
Vol 20 (20) ◽  
pp. 13983-13993 ◽  
Author(s):  
Wei Xie ◽  
Changwei Zou ◽  
Songquan Li ◽  
Jianhui Sun ◽  
Fengwen Kang ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid State Reactions ◽  
Co Doping

In this work, the Sr3Al2O5Cl2:Eu2+ and Sr3Al2O5Cl2:Eu2+,Bi3+ phosphors are synthesized by high temperature solid state reactions.

scholarly journals Energy transfer in single phase Eu3+-doped Y2WO6 phosphors

RSC Advances ◽  
2017 ◽  
Vol 7 (25) ◽  
pp. 14974-14980 ◽  
Author(s):  
J. Llanos ◽  
D. Espinoza ◽  
R. Castillo
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Single Phase ◽  
Solid State Reactions

Inorganic phosphors based on monoclinic Y2WO6 doped with Eu3+ ions were prepared via conventional solid-state reactions at high temperature.

A Cooperative Afterglow Enhancement in Second Biological Window of Na2CaSn2Ge3O12 with Co-doping of Pr3+-Yb3+

2021 ◽  
Author(s):  
Xiuping Gao ◽  
Tao Liu ◽  
Xiaohui Jiang ◽  
Kai Huang ◽  
Runlin Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Solid State Reaction ◽  
Near Infrared ◽  
Co Doping

A novel near-infrared persistent luminescent phosphor Na2CaSn2Ge3O12 (NCSGO) doped with Ho3+, Er3+, Tm3+ and Yb3+ was synthesized by high-temperature solid-state reaction. The afterglow emission bands located at 1553nm, 801nm and...

Emission red shift and energy transfer behavior of color-tunable KMg4(PO4)3:Eu2+,Mn2+phosphors

2015 ◽  
Vol 3 (21) ◽  
pp. 5516-5523 ◽  
Author(s):  
Jian Chen ◽  
Yan-gai Liu ◽  
Lefu Mei ◽  
Ziyao Wang ◽  
Minghao Fang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Red Shift ◽  
Solid State Reactions ◽  
Luminescence Properties ◽  
Color Tunable ◽  
Transfer Behavior

A series of Eu2+- and Mn2+-coactivated KMg4(PO4)3phosphors were prepared by conventional high temperature solid-state reactions. Their luminescence properties, emission red shifts and the energy transfer between Eu2+and Mn2+were investigated and the related mechanisms were discussed in detail.

Über eine neue Präparationstechnik in der Feststoffchemie, I Hochtemperatursynthesen mit CO2-Laser / A New Preparation Technique in Solid State Chemistry, I High Temperature Reactions with CO2-Laser

1979 ◽  
Vol 34 (3) ◽  
pp. 371-374 ◽  
Author(s):  
Hk. Müller-Buschbaum ◽  
H. Pausch
Keyword(s):  
High Temperature ◽  
Laser Radiation ◽  
Solid State ◽  
Co2 Laser ◽  
Solid State Reactions ◽  
Solid State Chemistry ◽  
Preparation Technique ◽  
Temperature Method ◽  
High Temperature Reactions

Abstract A new high temperature method using a CO2-Laser radiation is reported. Its application on solid state reactions in air or in defined gas atmospheres is described.

Ambient pressure synthesis of Eu3+ doped δ-BiB3O6 by seed-assisted high temperature solid state reactions

2020 ◽  
Vol 49 (18) ◽  
pp. 5932-5938
Author(s):  
Yunwei Zhao ◽  
Pengfei Jiang ◽  
Wenliang Gao ◽  
Rihong Cong ◽  
Jing Ju ◽  
...  
Keyword(s):  
Crystal Growth ◽  
High Temperature ◽  
Solid State ◽  
Single Crystal ◽  
Ambient Pressure ◽  
Single Crystal Growth ◽  
Solid State Reactions ◽  
Pressure Synthesis ◽  
High Level

A high level of Eu3+ (7 atom%) was doped successfully, suggesting the possible single crystal growth of bi-functional RE3+-doped δ-BiB3O6.

scholarly journals Computer simulation of metal co-doping in lithium niobate

2014 ◽  
Vol 470 (2171) ◽  
pp. 20140406 ◽  
Author(s):  
Romel M. Araujo ◽  
Mário E. G. Valerio ◽  
Robert A. Jackson
Keyword(s):  
Computer Simulation ◽  
Solid State ◽  
Lithium Niobate ◽  
Computer Modelling ◽  
Defect Chemistry ◽  
Experimental Results ◽  
Solid State Reactions ◽  
Co Doping ◽  
Nonlinear Properties ◽  
Electro Optic

Lithium niobate, LiNbO 3 , is an important technological material with good electro-optic, acousto-optic, elasto-optic, piezoelectric and nonlinear properties. Computer modelling provides a useful means of determining the properties of the material, including its defect chemistry, and the effect of doping on the structure. In this work, double-doped LiNbO 3 was studied, and the energetics of the solid-state reactions leading to incorporation of the dopants was calculated. The following combinations of dopants were studied: Fe and Cu; Ce and Cu; Ce and Mn; Fe and Rh; and Ru and Fe. For most of these combinations, the co-doping process decreases the energy required for incorporation of the dopants, and the final defect configurations are consistent with experimental results, where available.

Ceramic colors

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Gerhard Pfaff
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Metal Oxides ◽  
Colloidal Particles ◽  
Solid State Reactions ◽  
Mixed Metal Oxides ◽  
Bone China ◽  
Application Systems ◽  
Ceramic Color ◽  
Gold Silver

Abstract Ceramic colors or stains consist mainly of pigments, glaze or body, and opacifiers. They are used for the decoration of porcelain, earthenware bone china and other ceramics. Glazes and enamels are the main application systems for ceramic colors. Pigments are the color giving components in the composition of a ceramic color. High temperature and chemical stability as well as high tinting strength are characteristics of stains. Technically important ceramic colors are cadmium sulfide and sulfoselenides (occluded in zircon), metals such as gold, silver, platinum, and copper (as colloidal particles), metal oxides (α-Fe2O3, Cr2O3, CuO, Co3O4/CoO, MnO2/Mn2O3, and NiO/Ni2O3), mixed metal oxides and silicates, zirconia-based and zircon-based compositions. Ceramic colors are often produced using solid state reactions.

scholarly journals Obtaining and properties of CdB4O7 polycrystals, doped with Cr3+ions

2020 ◽  
Author(s):  
Т.Н. ХАМАГАНОВА
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Melting Point ◽  
Solid Solutions ◽  
Solid State Reactions ◽  
Optimal Composition ◽  
Dsc Method ◽  
First Time ◽  
Rhombic System ◽  
Xrd Method

Впервые поликристаллические фазы Cd1-xB4O7 : xCr3+ (x = 0,03; 0,05 и 0,07) и исходная матрица CdB4O7 синтезированы высокотемпературными твердофазными реакциями при 850 °С. Методом РФА показано, что твердые растворы кристаллизуются в ромбической сингонии (пр. гр. Pbca). Методом ДСК определена температура плавления (Тпл. = 974 °С) бората Cd1-xB4O7 : 0.03 Cr3+. Построением кривых высвечивания в области 20–400 °С проведены термолюминесцентные исследования. Выявлен оптимальный состав люминофора Cd1-xB4O7 : 0.03 Cr3+ с максимальной интенсивностью свечения. For the first time the polycrystalline phases Cd1-xB4O7 : x Cr3 + (x = 0.03; 0.05 and 0.07) and the initial CdB4O7 matrix were synthesized by high-temperature solid-state reactions at 850°C. The XRD method showed that solid solutions crystallize in rhombic system (sp. gr. Pbca). Using the DSC method, the melting point (Tm.p. = 974°С) of Cd1-xB4O7 : 0.03 Cr3 + borate was determined. Thermoluminescent studies were performed by plotting the emission curves in the range of 20–400°С. The optimal composition of the phosphor Cd1-xB4O7 : 0.03 Cr3 + with a maximum luminescence intensity was revealed.

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