Synthesis, luminescent properties and white light emitting diode application of Ba7Zr(PO4)6:Eu2+ yellow-emitting phosphor

2015 ◽  
Vol 475 ◽  
pp. 105-109 ◽  
Author(s):  
Chenxia Li ◽  
Jian Dai ◽  
Degang Deng ◽  
Changyu Shen ◽  
Shiqing Xu
Keyword(s):  
White Light ◽  
Light Emitting Diode ◽  
Luminescent Properties ◽  
Light Emitting

scholarly journals High Efficiency and Color Rendering Quantum Dots White Light Emitting Diodes Optimized by Luminescent Microspheres Incorporating

Nanophotonics ◽  
2016 ◽  
Vol 5 (4) ◽  
pp. 565-572 ◽  
Author(s):  
Wei Chen ◽  
Kai Wang ◽  
Junjie Hao ◽  
Dan Wu ◽  
Jing Qin ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
High Efficiency ◽  
Lattice Structure ◽  
Light Emitting Diode ◽  
Luminescent Properties ◽  
Color Temperature ◽  
High Quantum Efficiency ◽  
Light Emitting ◽  
Color Rendering

AbstractIn this research, we have developed an approach by incorporating quantum dots (QDs) with red emission into mesoporous silica microspheres through a non-chemical process and obtained luminescent microspheres (LMS). Owing to the lattice structure of LMS, QDs were effectively protected from intrinsic aggregation in matrix and surface deterioration by encapsulant, oxygen and moisture. The LMS composite has therefore maintained large extent luminescent properties of QDs, espe-cially for the high quantum efficiency. Moreover, the fabricated white light emitting diode (WLED) utilizing LMS and YAG:Ce yellow phosphor has demonstrated excellent light performance with color coordinates around (x = 0.33, y = 0.33), correlated color temperature between 5100 and 5500 K and color rendering index of Ra = 90, R9 = 95. The luminous efficiency of the WLED has reached up to a new record of 142.5 lm/W at 20 mA. LMS provide a promising way to practically apply QDs in lightings and displays with high efficiency as well as high stability.

The synthesis and luminescent properties of bonded Eu(III) polymer phosphors for white light‐emitting diode

2019 ◽  
Vol 57 (2) ◽  
pp. 627-634
Author(s):  
Jiandong Guo ◽  
Yamin Yang ◽  
Husheng Jia ◽  
Aiqin Zhang ◽  
Qianqian Shen ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diode ◽  
Luminescent Properties ◽  
Light Emitting

Luminescent properties of Eu3+-doped BaZrO3 phosphor for UV white light emitting diode

2010 ◽  
Vol 28 ◽  
pp. 292-294 ◽  
Author(s):  
Li GUAN ◽  
Litao JIN ◽  
Shuqing GUO ◽  
Yunfeng LIU ◽  
Xu LI ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diode ◽  
Luminescent Properties ◽  
Light Emitting

Luminescent properties in the strain adjusted phosphor-free GaN based white light-emitting diode

2008 ◽  
Vol 93 (26) ◽  
pp. 261117 ◽  
Author(s):  
H. Fang ◽  
L. W. Sang ◽  
L. B. Zhao ◽  
S. L. Qi ◽  
Y. Z. Zhang ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diode ◽  
Luminescent Properties ◽  
Light Emitting

Preparation and luminescent properties of Tm3+-Dy3+ co-doped phosphate glass for white light-emitting-diode applications

2020 ◽  
Vol 227 ◽  
pp. 117559
Author(s):  
Lei Han ◽  
Jun Song ◽  
Weizhen Liu ◽  
Zongliang Xiao ◽  
Liaolin Zhang ◽  
...  
Keyword(s):  
Phosphate Glass ◽  
White Light ◽  
Light Emitting Diode ◽  
Luminescent Properties ◽  
Light Emitting ◽  
Co Doped

Synthesis and Photoluminescence Properties of Two-Bands Excited SrSi2O2N2: Yb2+ Phosphors

2012 ◽  
Vol 430-432 ◽  
pp. 315-318 ◽  
Author(s):  
Xue Wen Xu ◽  
Kun Fu ◽  
Long Hu ◽  
Zun Ming Lu ◽  
Xing Hua Zhang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Blue Light ◽  
White Light ◽  
Light Emitting Diode ◽  
Emission Spectra ◽  
Luminescent Properties ◽  
Chemical Compositions ◽  
Photoluminescence Properties ◽  
Light Emitting ◽  
Red Luminescence

The crystal structure and luminescent properties of synthesized SrSi2O2N2: Yb2+ phosphors have been investigated to seek for convention phosphor for white light-emitting diode applications. The Sr1-xYbxSi2O2N2 phosphors have yellow-red luminescence under the exciting of blue light, which is attributed to the 4fn↔4fn-15d transitions of Yb2+. Although the chemical compositions for Sr1-xYbxSi2O2N2 materials are different, no shifts are observed from the excitation and emission spectra.

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