scholarly journals Controllable crystal form transformation and luminescence properties of up-conversion luminescent material K3Sc0.5Lu0.5F6: Er3+, Yb3+ with cryolite structure

RSC Advances ◽  
2021 ◽  
Vol 11 (48) ◽  
pp. 30006-30019
Author(s):  
Zhaoliang Yan ◽  
Qingfeng Guo ◽  
Libing Liao ◽  
Pengfei Shuai ◽  
Feifei Huang ◽  
...  
Keyword(s):  
Crystal Form ◽  
Luminous Intensity ◽  
Luminescence Properties ◽  
Luminescent Material ◽  
Form Transformation

Controllable crystal form transformation can effectively influence the up-conversion luminous intensity of cryolite materials.

Infrared and Luminescent Properties of Mg (II) Fluorescence Materials

2011 ◽  
Vol 322 ◽  
pp. 412-415
Author(s):  
Li Hua Wang
Keyword(s):  
Infrared Spectrum ◽  
Organic Solvents ◽  
Luminescent Properties ◽  
Emission Peak ◽  
Luminous Intensity ◽  
Blue Luminescence ◽  
Luminescent Material ◽  
Fluorescent Material

A new luminescent material, 1-acetyl-2-naphthol-4, 4'-diaminodiphenyl ether Mg (II) has been designed, synthesized and characterized. The infrared spectrum and luminescent properties of Mg (II) material have been investigated. The results indicate that the Mg (II) fluorescent material emits blue luminescence with an emission peak at 455 nm when excited at 327 nm, and the effect of organic solvents on the luminous intensity of Mg (II) fluorescent material was arranged in the order CH3CH2OH > DMSO > solid> CH3OH.

Structure of solution-grown trans-1,4-polyisoprene crystals: 2. D.s.c. studies of crystal form transformation

Polymer ◽  
1993 ◽  
Vol 34 (17) ◽  
pp. 3694-3698 ◽  
Author(s):  
Ploenpit Boochathum ◽  
Yasuyuki Tanaka ◽  
Kenji Okuyama
Keyword(s):  
Crystal Form ◽  
Form Transformation

Enhanced Red Fluorescence Emissions of [Ru(bpy)3]Cl2 in DNA Complexes

2020 ◽  
Vol 842 ◽  
pp. 145-152
Author(s):  
Wen Juan He ◽  
Rong Cao ◽  
Bei Qing Huang ◽  
Xian Fu Wei ◽  
Li Juan Liang
Keyword(s):  
Fluorescent Dyes ◽  
Red Light ◽  
Fluorescent Dye ◽  
Luminous Intensity ◽  
Luminescence Properties ◽  
Molecular Devices ◽  
Peak Wavelength ◽  
Fluorescent Substance ◽  
Main Emission Peak ◽  
Dna Complex

The research on molecular devices, fluorescent labels and fluorescent probes based on the interaction between biomolecular DNA and fluorescent dyes has been paid more attention at home and abroad. In this paper, the luminescence properties of the [Ru(bpy)3]Cl2 complex itself were investigated, and the luminescence properties of the [Ru(bpy)3]Cl2 complex under the interaction of the solution and the film were observed by association of the DNA complex with the [Ru(bpy)3]Cl2 complex. The results showed that [Ru(bpy)3]Cl2 emitted red light with its main emission peak wavelength was 610nm, and its fluorescence intensity was the highest when the concentration of solution substance was 10mmol/L. When doped with DNA solution in [Ru(bpy)3]Cl2 complex, a small amount of fluorescent dye [Ru(bpy)3]Cl2 can be used to achieve a higher luminous intensity At the same time, the fluorescent dye [Ru(bpy)3]Cl2 doped with DNA solution reached a higher luminous intensity in the thin-film state. This experiment provides an important experimental basis for the application of fluorescent substance [Ru(bpy)3]Cl2 in luminescent thin films.

OPTICAL CHARACTERIZATION OF Tb3+-DOPED Gd2O3 BASED SCINTILLATING GLASSES

2013 ◽  
Vol 27 (23) ◽  
pp. 1350127
Author(s):  
FEI LAI ◽  
YUE-PIN ZHANG ◽  
HAI-PING XIA ◽  
JIN-HAO WANG ◽  
WEI HE
Keyword(s):  
High Temperature ◽  
Optical Characterization ◽  
Luminous Intensity ◽  
Luminescence Properties ◽  
Oxide Glasses ◽  
Excitation Spectra ◽  
Melting Method ◽  
Negative Effect ◽  
Temperature Melting

We prepared Tb 3+-doped Gd 2 O 3-based oxide glasses by high-temperature melting method and presented their density and optical characterization including transmission, emission and excitation spectra. Dependence of density and luminescence properties on the concentration of Tb 3+ and Gd 2 O 3 was also analyzed. The results show that rising Tb 3+ ions concentrations would lead to the reduction of distance between Tb 3+ ions, the increase of probabilities of energy resonate-transfer and a stronger luminous intensity. In addition, a high Gd 2 O 3 concentration was beneficial to improve the glass samples density, but exerting a negative effect on Tb 3+ ions and decreasing the luminous intensity of Tb 3+ ions.

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.

Spray Pyrolysis Synthesis and Luminescence Properties of Spherical Eu3+ Doped SrMoO4 Phosphors

2015 ◽  
Vol 655 ◽  
pp. 208-211
Author(s):  
Shun Wang ◽  
Hong Qiang Wang
Keyword(s):  
Spray Pyrolysis ◽  
Phase Structure ◽  
Solution Concentration ◽  
Luminous Intensity ◽  
Luminescence Properties ◽  
Spray Pyrolysis Method ◽  
Fluorescent Properties ◽  
Pyrolysis Method ◽  
Microscopic Morphology ◽  
Pyrolysis Synthesis

Spherical SrMoO4:Eu3+ phosphors had been prepared by spray pyrolysis. The effect of the total solution concentration on phase structure, microscopic morphology and fluorescent performances of SrMoO4: Eu3+ phosphor have been studied. The results showed that pure SrMoO4 phase can be obtained at different total solution concentration; The luminous intensity of the sample was the strongest at 615nm when the total solution concentration is 0.6M. SrMoO4: Eu3+ phosphor with regular spherical morphology, well dispersion and well fluorescent properties was synthesized successfully by spray pyrolysis method.

Preparation and Luminescence Properties of Near Infrared Luminescent Material Mg2SnO4∶Cr3+

2019 ◽  
Vol 40 (12) ◽  
pp. 1505-1513
Author(s):  
蔡吉泽 CAI Ji-ze ◽  
庞 然 PANG Ran ◽  
于 湛 YU Zhan ◽  
刘丽艳 LIU Li-yan ◽  
李成宇 LI Cheng-yu
Keyword(s):  
Near Infrared ◽  
Luminescence Properties ◽  
Luminescent Material

Effects of Surfactants on Particle Size and Luminescence Properties of Ca1.98MgSiO5:Eu2+0.02 Phosphor Prepared by Sol-Gel Method

2013 ◽  
Vol 634-638 ◽  
pp. 2454-2457 ◽  
Author(s):  
Ying Xie ◽  
Gang Wang ◽  
Lin Jiu Xiao ◽  
Wen Ze Li ◽  
Yong Jie Chen ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Sol Gel ◽  
Crystal Form ◽  
Luminescence Properties ◽  
Ammonium Bromide ◽  
Phosphor Particle ◽  
Gel Method ◽  
Sol Gel Method

Eu2+-doped Ca2MgSiO5 phosphors were prepared by sol-gel method. The effects of using surfactants (hexadecyl trimethyl ammonium bromide (CTAB) and triethanolamine) during the sol process were investigated on the phosphor particle size distribution. The use of surfactants did not change the crystal form of the Ca2MgSiO5:Eu2+ phosphor, but the particle size distribution and the luminescence properties were improved.

Crystal structure, thermal crystal form transformation, desolvation process and desolvation kinetics of two novel solvates of ciclesonide

RSC Advances ◽  
2016 ◽  
Vol 6 (56) ◽  
pp. 51037-51045 ◽  
Author(s):  
Lina Zhou ◽  
Qiuxiang Yin ◽  
Shichao Du ◽  
Hongxun Hao ◽  
Yanfeng Li ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Analytical Techniques ◽  
Crystal Form ◽  
Form Transformation ◽  
Kinetics Of

Two novel solvates of ciclesonide were successfully obtained and characterized by various analytical techniques (XRPD, XRSD, DSC, TGA and HSM). Thermal crystal form transformation and desolvation process of the solvates were also studied.

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