Tuning Emission Spectrum of KSrPO4:Eu2+ Phosphor by Co-Doping with Y3+

Series samples Zn(1-x)S:Cux (0.001<x<0.05) have been prepared by a simple and template-free microemulsion method. From the XRD we know that all samples are single phase. The SEM photo shows that the particle sizes are about 50～200nm.When the contents of doping Cu2+ ions increasing, the particle sizes become larger, which proves that Cu2+ ions occupy the position of Zn2+ ions. The emission spectrum (ES) indicates that when doping Cu2+ ions ,samples show a blue light and the main emission peaks which caused by Cu2+ ions t2 transition locates at 425nm. Moreover, when co-doping Cu2+ ions and Mn2+ ions, the intensity of PL emissions increased.

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Effect Of Co-Doping Of Tm3+ Ions On The Emission Spectrum Of Dy3+ Ion in tellurite glasses

10.1364/photonics.2012.wpo.49 ◽

2012 ◽

Author(s):

Rama Moorthy L ◽

sasikala T

Keyword(s):

Emission Spectrum ◽

Tellurite Glasses ◽

Co Doping

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Strongly enhanced luminescence of Sr4Al14O25:Mn4+phosphor by co-doping B3+and Na+ions with red emission for plant growth LEDs

RSC Advances ◽

10.1039/c7ra11967d ◽

2018 ◽

Vol 8 (3) ◽

pp. 1469-1476 ◽

Cited By ~ 46

Author(s):

Jiaqi Long ◽

Xuanyi Yuan ◽

Chaoyang Ma ◽

Miaomiao Du ◽

Xiaoli Ma ◽

...

Keyword(s):

Absorption Spectrum ◽

Plant Growth ◽

Emission Spectrum ◽

Chlorophyll B ◽

Red Phosphor ◽

Red Emission ◽

Co Doping ◽

Na Ions ◽

Enhanced Luminescence ◽

Blue Chip

(a) Emission spectrum of LEDs fabricated with 445 nm blue chip and Sr2Si5N8:Eu2+red phosphor. (b) Emission spectrum of LEDs fabricated with 445 nm blue chip and Sr4Al14O25:Mn4+phosphor. (c and d) Absorption spectrum of chlorophyll-b and chlorophyll-a.

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The Research of Solvothermal Method Preparation of Y2O2S:Eu3+0.06, Mg 2+0.04,Ti4+0.01 Water-Soluble Red Afterglow Materials

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.513-517.138 ◽

2014 ◽

Vol 513-517 ◽

pp. 138-142 ◽

Cited By ~ 4

Author(s):

Hui Chen ◽

Ya Cong Zhang ◽

Che Chen ◽

Zhi Long Wang ◽

Ning Yao

Keyword(s):

High Temperature ◽

Emission Spectrum ◽

Solvothermal Method ◽

Water Soluble ◽

White Powder ◽

Luminous Intensity ◽

Co Doping

Series sample were prepared with solvothermal method using ethylene-diomine as solvent, at 220°C for 24h. All samples are white powder and XRD proofs that all of them are single phases. Using the Laser granularity cryoscopy (rise 2008) to measure the samples size , and most samples sizes are from 150nm to 200nm. SEM photo shows that the Y2O2S:Eu3+ morphologies are spherical but have some aggregation. Emission spectrum of Y2O2S:Eu3+,M g2+,Ti4+shows that while co-doping M g2+,Ti4+ions , the strongest peak dosent change . Prepared with high temperature solid insoluble samples compared to samples of this water-soluble luminous intensity is not high.

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Models of Thermodynamic Properties of Prominences

International Astronomical Union Colloquium ◽

10.1017/s0252921100065799 ◽

1979 ◽

Vol 44 ◽

pp. 349-355

Author(s):

R.W. Milkey

Keyword(s):

Thermodynamic Properties ◽

Mass Transport ◽

Emission Spectrum ◽

Thermodynamic Parameters ◽

Working Group ◽

Physical Processes ◽

Theoretical Concepts ◽

Group 3 ◽

Observational Techniques

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.

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