Communication—Synthesis and Luminescent Properties of Red-Emitting Phosphor BaNbF5.5(OH)1.5:Mn4+

2017 ◽  
Vol 6 (9) ◽  
pp. R139-R141 ◽  
Author(s):  
Zhiyu Yang ◽  
Qianwen Wei ◽  
Nan Wang ◽  
Zhaofeng Yang ◽  
Qiang Zhou ◽  
...  
2010 ◽  
Vol 136 ◽  
pp. 14-17 ◽  
Author(s):  
Yu Zhong Li ◽  
Xiao Chun Zhou

A novel red emitting phosphor, Ca2SnO4: Eu3+, was prepared by the low temperature solid state reaction. X-ray powder diffraction (XRD) analysis confirmed the formation of Ca2SnO4: Eu3+. Scanning electron-microscopy (SEM) observation indicated a narrow size distribution of about 500 nm for the particles with spherical shape. Under 396 nm excitation, the Ca2SnO4: Eu3+ phosphor exhibits novel red emission at about 613 nm which is assigned to the 5D0→7F2 electric-dipole transition. Furthermore, the emission transition 5D0→7F2 has been found to be more prominent over the normal orange emission transition 5D0→7F1.


2010 ◽  
Vol 64 (2) ◽  
pp. 241-244 ◽  
Author(s):  
Fa-Bin Cao ◽  
Yong-Jie Chen ◽  
Yan-Wen Tian ◽  
Lang-Kai Li

2010 ◽  
Vol 28 (6) ◽  
pp. 878-882 ◽  
Author(s):  
Xianghong HE ◽  
Mingyun GUAN ◽  
Zhongchun LI ◽  
Tongming SHANG ◽  
Ning LIAN ◽  
...  

NANO ◽  
2009 ◽  
Vol 04 (03) ◽  
pp. 141-145 ◽  
Author(s):  
WOO JUNG PARK ◽  
TAKAKI MASAKI ◽  
DAE HO YOON

This paper reports an approach for enhancing the luminescent properties of Y2O3:Eu3+ nanophosphors with cellulose, using a liquid phase precursor (LPP) process. The nanosized [Formula: see text] particles showed a powder X-ray diffraction pattern, corresponding to the reference, and were highly crystalline. The grain sizes of the samples synthesized at 600°C for 1 h were estimated to be approximately 19 nm. The particle sizes of the samples increased with increasing synthesis temperature and the morphology was cleaned and without impurities. In addition, all the samples had a smaller particle size than that of the commercial product. The PL spectrum consisted of weak bands at 581, 587, 593, and 599 nm, corresponding to the 5 D 0 → 7 F 1 transition, and sharp peaks with a maximum intensity occurring at approximately 610 nm, due to the 5 D 0 → 7 F 2 transition of Eu 3+. These results suggest that Y 2 O 3: Eu 3+ is a promising alternative red-emitting phosphor for high efficiency resolution display applications.


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