Photoluminescence properties of monodispersed Mn2+ doped ZnS nanoparticles prepared in high temperature

2011 ◽  
Vol 991 (1-3) ◽  
pp. 202-206 ◽  
Author(s):  
G. Murugadoss ◽  
B. Rajamannan ◽  
V. Ramasamy
2017 ◽  
Vol 37 (5) ◽  
pp. 0516001
Author(s):  
马诗章 Ma Shizhang ◽  
冯文林 Feng Wenlin ◽  
彭志清 Peng Zhiqing

2019 ◽  
Vol 32 (8) ◽  
pp. 2489-2500 ◽  
Author(s):  
K. Manojkumar ◽  
B. Prasad ◽  
Y. Kranthi ◽  
J. S. K. Varma ◽  
K. Vinay ◽  
...  

Inorganics ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 136
Author(s):  
Fuchs ◽  
Schröder ◽  
Heymann ◽  
Jüstel ◽  
Huppertz

A high-pressure/high-temperature experiment at 7.5 GPa and 1673 K led to the formation of the new compound βY2B4O9. In contrast to the already known polymorph αY2B4O9, which crystallizes in the space group C2/c, the reported structure could be solved via single-crystal Xray diffraction in the triclinic space group P1 (no. 2) and is isotypic to the already known lanthanide borates βDy2B4O9 and βGd2B4O9. Furthermore, the photoluminescence of an europium doped sample of βY2B4O9:Eu3+ (8%) was investigated.


Author(s):  
S. Sambasivam ◽  
B. Sathyaseelan ◽  
D. Raja Reddy ◽  
B.K. Reddy ◽  
C.K. Jayasankar

2015 ◽  
Vol 3 (27) ◽  
pp. 7096-7104 ◽  
Author(s):  
Kai Li ◽  
Mengmeng Shang ◽  
Yang Zhang ◽  
Jian Fan ◽  
Hongzhou Lian ◽  
...  

A series of Ca9Bi(PO4)7:Ce3+,Tb3+,Mn2+phosphors synthesizedviathe high-temperature solid-state reaction method can emit intense tunable color from purple-blue to red including white under UV excitation, which shows their potential application in UV-pumped white-light-emitting diodes.


2018 ◽  
Vol 73 (2) ◽  
pp. 99-103 ◽  
Author(s):  
Lu Pan ◽  
Xiaozhan Yang ◽  
Chaoyue Xiong ◽  
Dashen Deng ◽  
Chunlin Qin ◽  
...  

AbstractA series of new red-orange emission phosphors Na2BaMg(PO4)2:Pr3+ were synthesised by a high-temperature solid-state reaction. The crystal structure and photoluminescence properties of these samples were characterised by X-ray diffraction and spectroscopic measurements. This compound holds P3̅m1 space group of the trigonal system with the lattice parameters of hexagonal cell a=0.5304(3) nm and c=0.6989(3) nm. The phosphor emits the strongest peak at 606 nm when excited by 449 nm. The average Commission Internationale de l’Eclairage chromaticity coordinates calculated for the phosphors are (0.52, 0.46). The results demonstrate the potential application of these phosphors in solid-state lighting and other fields.


2013 ◽  
Vol 16 (6) ◽  
pp. 2044-2050 ◽  
Author(s):  
Gurmeet Singh Lotey ◽  
Zinki Jindal ◽  
Vaishali Singhi ◽  
N.K. Verma

2018 ◽  
Vol 74 (9) ◽  
pp. 1045-1052 ◽  
Author(s):  
Ji Zhao ◽  
Dan Zhao ◽  
Ya-Li Xue ◽  
Qiu Zhong ◽  
Shi-Rui Zhang ◽  
...  

A new tantalum phosphate, tridecasodium distrontium ditantalum nonaphosphate, Na13Sr2Ta2(PO4)9, was prepared using the high-temperature flux method. The structure can be described as a three-dimensional open framework containing isolated [TaV2(PO4)9]17−units that are interlocked by Na and Sr ions. Band structure studies by the first-principles method revealed that Na13Sr2Ta2(PO4)9is an insulator with an indirect band gap of 4.78 eV, which makes it suitable as a luminescent host matrix. A series of solid solutions,i.e.Na13Sr2–xTa2(PO4)9:xDy3+(x= 0.01, 0.02, 0.04, 0.06, 0.08, 0.1, 0.12 and 0.14), were prepared and their photoluminescence properties studied. Under 350 nm light excitation, these emit two typical emissions of the Dy3+ion,i.e.the4F9/2→6H15/2transition centred at 476 nm and the4F9/2→6H13/2transition centred at 570 nm.


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