Fabrication and luminescence properties of red emitting phosphor Y2O2S:Sm3+ for white LED by combustion method

2008 ◽  
Vol 464 (1-2) ◽  
pp. 565-568 ◽  
Author(s):  
Xu Li ◽  
Zhiping Yang ◽  
Li Guan ◽  
Qinglin Guo ◽  
Chong Liu ◽  
...  
Keyword(s):  
Combustion Method ◽  
Luminescence Properties ◽  
White Led ◽  
Red Emitting Phosphor

An efficient and stable narrow band Mn4+-activated fluorotitanate red phosphor Rb2TiF6:Mn4+ for warm white LED applications

2018 ◽  
Vol 6 (32) ◽  
pp. 8670-8678 ◽  
Author(s):  
L. Y. Wang ◽  
E. H. Song ◽  
Y. Y. Zhou ◽  
T. T. Deng ◽  
S. Ye ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Quantum Efficiency ◽  
Working Conditions ◽  
Narrow Band ◽  
Internal Quantum Efficiency ◽  
Luminescence Properties ◽  
White Led ◽  
Red Phosphor ◽  
Red Emitting Phosphor

A Rb-based fluorotitanate red-emitting phosphor Rb2TiF6:MnM4+ with an internal quantum efficiency of 91% was synthesized and presents exceptional luminescence properties, thermal stability and longevity under LED working conditions.

Synthesis and luminescence properties of LiGd3(MoO4)5:Eu3+ phosphors for white LED applications

2018 ◽  
Vol 30 (3) ◽  
pp. 2037-2044 ◽  
Author(s):  
Saravana Kumar Jaganathan ◽  
Anthuvan John Peter ◽  
Venkatakrishnan Mahalingam ◽  
Rajagopalan Krishnan
Keyword(s):  
Luminescence Properties ◽  
White Led

scholarly journals Annealing effects on luminescent properties of Eu3+ doped Gd2Zr2O7 nanopowders

2015 ◽  
Vol 47 (3) ◽  
pp. 269-272 ◽  
Author(s):  
M.S. Rabasovic ◽  
D. Sevic ◽  
J. Krizan ◽  
M.D. Rabasovic ◽  
N. Romcevic
Keyword(s):  
Low Cost ◽  
Emission Spectra ◽  
Luminescent Properties ◽  
Combustion Method ◽  
Luminescence Properties ◽  
Camera System ◽  
Strong Emission ◽  
Structure Morphology ◽  
Annealing Effects ◽  
Size And Morphology

In this report presented are structure, morphology and luminescence properties of nanopowders based on gadolinium zirconium oxide (Gd2Zr2O7) doped by europium ions (Eu3+). The nanopowders were prepared using a flame combustion method, the most frequently used process due to the simplicity and low cost of the synthesis procedures and also due to the possibility of tailoring the size and morphology of particles. The produced material is suitable for various optical devices. The luminescence properties of synthesized nanopowders were characterized by emission spectra and luminescence lifetimes obtained by using the streak camera system. Moreover, emission spectra were obtained and compared for powders as-obtained and after additional annealing at 1200o C. Luminescence emission spectra clearly show peaks characteristic for the strong emission lines at 611 nm and 630 nm corresponding to the 5D0 ? 7F2 long lived transition.

Fabrication and Luminescence Properties of CaMoO4:Eu3+ Red Phosphors for White LED

2010 ◽  
Vol 663-665 ◽  
pp. 441-444
Author(s):  
Zhen Hua Liang ◽  
Yu Zhi Feng ◽  
Xiao Xia Liu ◽  
Gui Hua Peng
Keyword(s):  
Luminescent Properties ◽  
Luminescence Properties ◽  
Precipitation Method ◽  
White Led ◽  
Doping Amount ◽  
Red Phosphors ◽  
Co Precipitation ◽  
The Relationship

CaMoO4: Eu3+ red phosphors were synthesized by co-precipitation method with H3BO3 as an additive and the relationship between H3BO3 doping amount and luminescent properties were studied. The brightness increased with increasing H3BO3 amount, the brightness of the CaMoO4: Eu3+ powder with 10 mol％ H3BO3 was 3.2 times higher than that of the phosphor without H3BO3.

Novel red-emitting phosphor La2Ti6O15:Eu3+ for fabricating warm white LED-devices

2021 ◽  
pp. 118489
Author(s):  
Huidong Tang ◽  
Tao Zhang ◽  
Longzhu Li ◽  
Yuwei Chen ◽  
Feifei Li
Keyword(s):  
White Led ◽  
Red Emitting Phosphor
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