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Synthesis of Sr4Al14O25:Eu 2+ green emitting luminescent nano- pigment by solution combustion method
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zand, Somaye Karimkhani Baghshahi, Saeid Rajabi, Masoud |
| Copyright Year | 2014 |
| Abstract | Luminescent nano-pigments based on strontium aluminates doped with various amounts of europium rare earth ion (Sr4Al14O25:Eu ) were synthesized by solution combustion method which involves the exothermic reaction of an oxidizer and an organic fuel. It is a suitable method for producing chemically homogenous and pure powders with very fine particle size. Phases studies by X-ray diffractometer indicated formation of pure phase Sr4Al14O25 with crystallite sizes about 52.46 nm and peak shift of about 2h = 0.26 due to Eu doping. scanning electron microscope micrographs also revealed that the particles have irregular morphology and wide particle size distribution. The emission spectrum showed main emission peak at about 480 nm. Energy transfer mechanism between the two emission centers and the effect of Eu ion concentration on emission spectrum was studied and it was deduced that the maximum emission intensity occurred at 4 at% of Eu. Absorption spectrum of the samples were lower than 0.5 %, especially in emission region of the doped pigments. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://ikiu.ac.ir/public-files/profiles/items/f3af372ba5210e3abf9c4cc5ee5be387.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
