AI Article Synopsis
- The GdAl3(BO3)4:Eu3+, Sm3+ nanophosphors were created using a sol-gel method and showed nanoparticle sizes between 40-60 nm.
- Characterization techniques like X-ray diffraction, SEM, and TEM confirmed their structure and size, while fluorescence measurements revealed key emission peaks for Sm3+ at 599 nm and for Eu3+ at 613 nm with respective excitations of 406 nm and 393 nm.
- The co-doped sample of Eu3+/Sm3+ exhibited a 54% increase in intensity of the 613 nm emission compared to the Eu3+ single-doped sample, attributed to energy transfer between Sm3+ and Eu3+.
Article Abstract
GdAl3(BO3)4:Eu3+, Sm3+ nanophosphors were successfully prepared by a sol-gel process. The nanoparticles have been characterized by X-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) techniques, and fluorescence measurements. The results show that the samples are composed of nanoparticles 40-60 nm in width. Under 406 nm excitation, the predominant emission peak of the GdAl3(BO3)4:Sm3+ nanoparticles is located at 599 nm, which is due to the 4G5/2-6H7/2 transition of Sm3+; Eu3+ activated GdAl3(BO3)4 shows intense red emission at 613 nm in the emission spectrum under 393 nm excitation, belonging to the 5D0-7F2 transition of Eu3+; For the Eu3+/Sm3+ co-doped sample, the most intensive emission at 613 nm under 393 nm excitation has been enhanced about 54% over that of the Eu3+ single-doped sample, due to an energy transfer from Sm3+ to Eu3+.
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| http://dx.doi.org/10.1166/jnn.2014.8012 | DOI Listing |
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