Crystal structure, luminescence properties, energy transfer, tunable occupation and thermal properties of a novel color-tunable phosphor NaBa1−zSrzB9O15:xCe3+,yMn2+

2018 ◽  
Vol 47 (39) ◽  
pp. 13913-13925 ◽  
Author(s):  
Qi Bao ◽  
Zhijun Wang ◽  
Jiang Sun ◽  
Zhipeng Wang ◽  
Xiangyu Meng ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Energy Transfer ◽  
Thermal Properties ◽  
High Temperature ◽  
Solid State ◽  
Luminescence Properties ◽  
Solid State Method ◽  
Color Tunable ◽  
State Method

A series of color-tunable NaBa1−zSrzB9O15:Ce3+,Mn2+ phosphors were synthesized by a high temperature solid state method.

Long-lasting luminescence in ZnGa2O4: Cr3+ through persistent energy transfer

2016 ◽  
Vol 30 (04) ◽  
pp. 1650019 ◽  
Author(s):  
Lei Li ◽  
Yinhai Wang ◽  
Haiju Huang ◽  
Hong Li ◽  
Hui Zhao
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Near Infrared ◽  
Blue Emission ◽  
Fluorescence Decay ◽  
Luminescence Properties ◽  
Solid State Method ◽  
Zinc Gallate ◽  
State Method

Cr[Formula: see text]-doped zinc gallate (ZnGa2O4) near-infrared (NIR) phosphors were synthesized via a high temperature solid state method. The luminescence properties of the phosphors were studied systematically. A significant spectra overlap between the emission of ZnGa2O4 and the absorption of Cr[Formula: see text] was observed and 300 nm excitation exhibited the most excellent long-lasting luminescence properties among the three main excitation bands. Luminescence intensity was changed with the ratio of Ga[Formula: see text]/Cr[Formula: see text] and the blue host emission of ZnGa2O4 was suppressed when doping Cr[Formula: see text] into ZnGa2O4. The fluorescence decay curves of blue emission of ZnGa2O4 with different Cr[Formula: see text] doping concentrations indicated that the lifetime of ZnGa2O4 at 505 nm become shorter with the increase of the Cr[Formula: see text] concentration. Herein, a possible mechanism of long-lasting luminescence in ZnGa2O4: Cr[Formula: see text] was proposed that the NIR long-lasting luminescence in ZnGa2O4: Cr[Formula: see text] comes from the persistent energy transfer from ZnGa2O4 to Cr[Formula: see text].

Crystal structure, luminescence properties, energy transfer and thermal properties of a novel color-tunable, white light-emitting phosphor Ca9−x−yCe(PO4)7:xEu2+,yMn2+

2016 ◽  
Vol 18 (41) ◽  
pp. 28661-28673 ◽  
Author(s):  
Chao Wang ◽  
Panlai Li ◽  
Zhijun Wang ◽  
Yuansheng Sun ◽  
Jinge Cheng ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Energy Transfer ◽  
Thermal Properties ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Solid State Reaction Method ◽  
Light Emitting ◽  
Reaction Method ◽  
Color Tunable

A series of Ca9−x−yCe(PO4)7:xEu2+,yMn2+ phosphors were synthesized by a high-temperature solid-state reaction method.

Photoluminescence Properties of Ca3Si2O7: Pr3+ Orange-Red Phosphors Prepared by High-Temperature Solid-State Method

2018 ◽  
Vol 73 (6) ◽  
pp. 555-558 ◽  
Author(s):  
Zhi-Qing Peng ◽  
Rong Chen ◽  
Wen-Lin Feng
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Solid State ◽  
Solid State Method ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Red Phosphors ◽  
Typical Sample ◽  
State Method ◽  
Xrd Patterns

AbstractNovel luminescent materials Ca3-xSi2O7: xPr3+ were successfully prepared by the high-temperature solid-state method. The crystal structure, morphology, and optical spectrum were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM), and spectroscopy, respectively. The XRD patterns of the samples indicate that the crystal structure is monoclinic symmetry. The SEM shows that the selected sample has good crystallinity although its appearance is irregular and scalelike. The peak of the excitation spectrum of the sample is located at around 449 nm, corresponding to 3H4→3P2 transition of Pr3+. The peak of the emission spectrum of the sample is situated at around 612 nm which is attributed to 3P0→3H6 transition of Pr3+, and the colour is orange-red. The optimum concentration for Pr3+ replaced Ca2+ sites in Ca3Si2O7: Pr3+ is 0.75 mol%. The lifetime (8.48 μs) of a typical sample (Ca2.9925Pr0.0075)Si2O7 is obtained. It reveals that orange-red phosphors Ca3-xSi2O7: xPr3+ possess remarkable optical properties and can be used in white light emitting devices.

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.

A series of tunable emission phosphors of Sm3+, Eu3+ and Mn2+ doped Ba3Tb(PO4)3: luminescence and energy transfer

RSC Advances ◽  
2015 ◽  
Vol 5 (88) ◽  
pp. 71735-71742 ◽  
Author(s):  
Ting Li ◽  
Panlai Li ◽  
Zhijun Wang ◽  
Shuchao Xu ◽  
Qiongyu Bai ◽  
...  
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Solid State Method ◽  
State Method ◽  
Tunable Emission

A series of activator Sm3+, Eu3+, Mn2+ ion doped Ba3Tb(PO4)3 phosphors with tunable emitting color were synthesized via the high temperature solid state method.

Photo-/cathodoluminescence and energy transfer properties of novel Ce3+ singly doped and Ce3+/Tb3+ codoped NaBaScSi2O7 phosphors

2016 ◽  
Vol 4 (15) ◽  
pp. 3304-3312 ◽  
Author(s):  
Gen Li ◽  
Yuhua Wang ◽  
Wei Zeng ◽  
Wenbo Chen ◽  
Shaochun Han ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Solid State ◽  
Solid State Method ◽  
Color Tunable ◽  
State Method ◽  
Transfer Properties

A series of novel Ce3+ singly doped and Ce3+/Tb3+ codoped color-tunable NaBaScSi2O7 phosphors were synthesized via the solid state method.

scholarly journals A single-phase white light emitting phosphor Ba3Y(PO4)3:Ce3+/Tb3+/Mn2+: luminescence, energy transfer and thermal stability

RSC Advances ◽  
2019 ◽  
Vol 9 (52) ◽  
pp. 30406-30418 ◽  
Author(s):  
Yun Chen ◽  
Wenge Ding ◽  
Panlai Li ◽  
Xue Li ◽  
Qi Bao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
White Light ◽  
Single Phase ◽  
Solid State Method ◽  
Light Emitting ◽  
State Method

A series of Ce3+/Tb3+, Tb3+/Mn2+ and Ce3+/Tb3+/Mn2+ doped Ba3Y(PO4)3 were synthesized by the high temperature solid state method.

Using rare earth ions to improve the luminescence properties of the defect-related luminescent material Zn3Al2Ge2O10

2017 ◽  
Vol 41 (15) ◽  
pp. 7400-7406 ◽  
Author(s):  
Qiongyu Bai ◽  
Zhijun Wang ◽  
Panlai Li ◽  
Shuchao Xu ◽  
Ting Li ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Solid State ◽  
Rare Earth Ions ◽  
Luminescence Properties ◽  
Luminescent Material ◽  
Solid State Method ◽  
White Emission ◽  
State Method

Herein, Zn3Al2Ge2O10 was synthesized by a high-temperature solid-state method, and a weak white emission ranging from 350 to 600 nm was observed.

The Impacts of Different Charge Compensators on the Luminescence Properties of BaMg2 (PO4)2: Eu 3+

2013 ◽  
Vol 645 ◽  
pp. 34-38
Author(s):  
Fu Yang ◽  
Xu Dong Meng ◽  
Dong Zhan Zhou ◽  
Zhi Ping Yang
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Crystal Structures ◽  
Luminescence Properties ◽  
Solid State Method ◽  
State Method

The BaMg1.99-x(PO4)2:0.01Eu3+,xN+(N=Li, Na, K) phosphors were synthesized by high temperature solid state method. Valence stability of Eu3+was analyzed and the effects of the charge compensators (Li+, Na+ and K+ ions) upon the crystal structures and luminescence properties of BaMg1.99(PO4)2:0.01Eu3+were studied in this paper.

A single-phased tunable emission phosphor MgY2Si3O10: Eu3+, Bi3+ with efficient energy transfer for white LEDs

2015 ◽  
Vol 44 (3) ◽  
pp. 1102-1109 ◽  
Author(s):  
Hongpeng Zhou ◽  
Ye Jin ◽  
Mingsong Jiang ◽  
Qingping Wang ◽  
Xingxing Jiang
Keyword(s):  
Energy Transfer ◽  
High Temperature ◽  
Solid State ◽  
Solid State Method ◽  
Efficient Energy Transfer ◽  
White Leds ◽  
Efficient Energy ◽  
State Method ◽  
Tunable Emission

A novel single-phased tunable emitting phosphor MgY2Si3O10: Bi3+, Eu3+ has been synthesized by conventional high temperature solid-state method. Upon the 344 nm excitation, the energy transfer from Bi3+(i) to Bi3+(ii) and both Bi3+ ions to Eu3+ has been investigated in detail.

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