![]() The structure, thickness, and composition of the deposited films have been studied by X-ray diffraction, ellipsometry, and X-ray fluorescence, respectively. Smart designed core-shell nanostructures formed by a YVO4: Nd3+ nanoparticle as the core, the sonosensitizer hematoporphyrinmonomethyl ether as. We also demonstrate the synthesis of a crystalline YVO4:YbVO4 layered material by ALD to verify the possibility of creating artificial core–shell type structures. Synthesis and characterization of core-shell structured SiO2YVO4:Yb3+,Er3+ microspheres. Abstract Eu3+ doped in core and shell (YVO4:SiO2) nanoparticles show luminescence peaks corresponding to magnetic and electric dipole transitions of Eu3+. In the present contribution we assess the efficiency of the UV to NIR conversion in the produced films and determine the optimal pulse parameters with respect to NIR emission intensity. Core-shell structured SiO2YVO4:D圓+/Sm3+ phosphor particles: sol-gel preparation and characterization. The NIR emission is expected to be due to a quantum splitting process in which one UV photon is converted to two NIR photons. Moving the Bi3+ to the YVO4 shell layer allowed for the modification of Bi3+/VO43 energy level hybridization ion pairs without significant quenching of the Eu3+ ions in the core. The samples are deposited using the precursor combinations Yb(thd)3, Y(thd)3, and VO(thd)2 with O3 (thd = 2,2,6,6-tetramethyl-3,5-heptanedione) at deposition temperatures between 260 and 300 ☌. Incorporating Bi3+ into YVO4:Eu3+ core NPs resulted in a red shift of the excitation edge by 30 nm and a decrease in the Eu3+ emission lifetime. Journal of Materials Science: Materials in Electronics, 28, 16026-16035. AbstractWe demonstrate controlled deposition by atomic layer deposition of YVO4:Yb3+ thin films exhibiting an intense NIR emission under UV excitation after post-deposition annealing at 1000 ☌. Semantic Scholar extracted view of 'Core-shell structured SiO2YVO4:D圓+/Sm3+ phosphor particles: sol-gel preparation and characterization.' by H. Magnetization-induced enhancement of photoluminescence in core-shell CoFe2O4YVO4:Eu3+ composite. Core-shell-core heterostructural engineering of Y2O3:Eu3+/MCM-41/YVO4:Eu3+ for enhanced red emission and tunable,broadened-band response to excitation.
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