Effect of replacement of Ca by Zn on the structure and optical property of CaTiO 3 :Eu 3+ red phosphor prepared by sol‐gel method

Luminescence ◽  
2014 ◽  
Vol 30 (5) ◽  
pp. 533-537 ◽  
Author(s):  
Yulong Wang ◽  
Wentao Zhang ◽  
Peicong Zhang ◽  
Junfeng Li ◽  
Jianping Long
Keyword(s):  
Optical Property ◽  
Sol Gel ◽  
Red Phosphor ◽  
Gel Method ◽  
Sol Gel Method

scholarly journals Synthesis and Luminescent Properties of Red Phosphor Na1.8Zn2.1(MoO4)3Eu by Sol-Gel Method

2014 ◽  
Vol 26 (9) ◽  
pp. 2537-2540
Author(s):  
Jianfu Zhang ◽  
Hui Zhang ◽  
Ke Ran Geng ◽  
Zhen Ling Wang
Keyword(s):  
Sol Gel ◽  
Luminescent Properties ◽  
Red Phosphor ◽  
Gel Method ◽  
Sol Gel Method

Structural characterization and optical property of TiO2 powders prepared by the sol–gel method

2014 ◽  
Vol 40 (6) ◽  
pp. 8659-8666 ◽  
Author(s):  
Y.F. You ◽  
C.H. Xu ◽  
S.S. Xu ◽  
S. Cao ◽  
J.P. Wang ◽  
...  
Keyword(s):  
Optical Property ◽  
Structural Characterization ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method

Optical property of the co-doped La and Mg BiFeO3 films fabricated by sol-gel method

2011 ◽  
Author(s):  
Lin Peng ◽  
Hongmei Deng ◽  
Jianjun Tian ◽  
Huan Deng ◽  
Pingxiong Yang ◽  
...  
Keyword(s):  
Optical Property ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Co Doped

Synthesis of a New Red Long Persistent Phosphor Sr2ZnSi2O7: Eu3+, Lu3+ via Sol–Gel Method and Investigation of its Luminescence

2011 ◽  
Vol 393-395 ◽  
pp. 362-365
Author(s):  
Hua Lin ◽  
A Xiao Xu ◽  
Guo Liang Chen ◽  
Zi Shan Zheng ◽  
Heng Lin ◽  
...  
Keyword(s):  
Uv Light ◽  
Sol Gel ◽  
Trap Depth ◽  
X Ray Diffraction ◽  
Red Phosphor ◽  
Gel Method ◽  
Sol Gel Method ◽  
Long Afterglow ◽  
Uv Light Irradiation ◽  
Luminescent Centers

A novel red long persistent phosphor of Sr2ZnSi2O7: Eu3+, Lu3+ was successfully synthesized with sol–gel method. Its properties were systematically characterized by X-ray diffraction(XRD), luminescence, afterglow decay curves and thermoluminescence (TL) spectra. The red phosphor showed one emission peak at 616.9nm, which is attributed to the typical 5D0–7F2 transition of Eu3+ ions as luminescent centers in Sr2ZnSi2O7 host. Lu3+ as a sensitized ion played an important role in enhancing the long afterglow performance of Sr2ZnSi2O7: Eu3+, Lu3+. Under UV light irradiation, this phosphor showed obvious red long-lasting phosphorescence that can be clearly seen with naked eyes in a dark room for over 20s after the irradiation source has been removed. Thermoluminescence (TL) measurement showed that Lu3+ co-dopan can reduce the trap depth of the title phosphor to obtain suitable ones.

Significant enhancement of luminescence intensity of CaTiO3:Eu3+ red phosphor prepared by sol–gel method and co-doped with Bi3+ and Mg2+

2012 ◽  
Vol 64 (2) ◽  
pp. 315-323 ◽  
Author(s):  
Pu-jun Zeng ◽  
Li-ping Yu ◽  
Zhong-xian Qiu ◽  
Ji-lin Zhang ◽  
Chun-ying Rong ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Sol Gel ◽  
Significant Enhancement ◽  
Red Phosphor ◽  
Gel Method ◽  
Sol Gel Method ◽  
Co Doped

scholarly journals Preparation of Compensation Ions Codoped SrTiO3:Pr3+ Red Phosphor with the Sol-Gel Method and Study of Its Luminescence Enhancement Mechanism

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
Dan Guo ◽  
Xiaodong Zhang ◽  
Jiangni Yun
Keyword(s):  
Electric Field ◽  
Sol Gel ◽  
Spectral Characteristics ◽  
Charge Compensation ◽  
Cubic Phase ◽  
Red Phosphor ◽  
Luminescence Enhancement ◽  
Gel Method ◽  
Sol Gel Method ◽  
Enhancement Mechanism

SrTiO3:Pr3+ is the most representative titanate matrix red phosphor for field emission display (FED). The red luminous efficiency of SrTiO3:Pr3+ will be greatly improved after the compensation ions codoping, so SrTiO3:Pr3+ red phosphor has been a research focus at home and abroad. SrTiO3:Pr3+, SrTiO3:Pr3+, Mg2+, and SrTiO3:Pr3+, Al3+ phosphors are synthesized by a new sol-gel method. Crystal structure, spectral characteristics, and luminescence enhancement mechanism of the sample were studied by XRD and PL spectra. The results showed that after co-doped, SrTiO3:Pr3+ phosphor is single SrTiO3 cubic phase, the main emission front is located at 614 nm, corresponding to Pr3+ ions 1D2→3H4 transition emission. SrTiO3:Pr3+, Mg2+ and SrTiO3:Pr3+, Al3+ phosphor luminescence intensity is enhanced, but the main luminescence mechanism is not changed. Acceptor impurity x = Mg2+, Al3+ will replace Ti bit after being doped into the crystal lattice to form XTi- charge compensation corresponding defect centers PrSr+ to reduce the demand of Sr2+ or Ti3+ vacancy. While Sr-doped Pr will make lattice distortion and transition energy of 4f-5d is very sensitive to crystal electric field changes around Pr atom. Doping different impurities will make electric field distribution around the icon have a different change. It increases energy transfer of 4f-5d transition and improves the luminous intensity of SrTiO3:Pr3+ red phosphor.

Preparation of Eu3+ Doping Li1.0Nb0.6Ti0.5O3 Red Phosphor by Sol-gel Method

2018 ◽  
Vol 39 (7) ◽  
pp. 909-914
Author(s):  
周鹤 ZHOU He ◽  
周志勇 ZHOU Zhi-yong ◽  
曾群 ZENG Qun ◽  
姚春凤 YAO Chun-feng ◽  
刘磊 LIU Lei
Keyword(s):  
Sol Gel ◽  
Red Phosphor ◽  
Gel Method ◽  
Sol Gel Method

scholarly journals Synthesis and Luminescence Property of Red Phosphor CaMoO4:Eu3+ via Sol-Gel Method

2014 ◽  
Vol 26 (22) ◽  
pp. 7697-7699
Author(s):  
Jianfu Zhang ◽  
Jun Wang ◽  
Shoukun Bu ◽  
Zhenling Wang
Keyword(s):  
Luminescence Property ◽  
Sol Gel ◽  
Red Phosphor ◽  
Gel Method ◽  
Sol Gel Method
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