A facile large-scale synthesis and luminescence properties of Gd2O3:Eu3+ nanoflowers

La(OH)3:Eu3+and La2O3:Eu3+nanorod bundles: growth mechanism and luminescence properties

“…An intense emission band appeared at 625 nm due to the ( 5 D 0 → 7 F 2 ) transition of Eu 3+ ions. 28,29 In both cases, the intense emission peaks confirmed that the Eu 3+ ions are located at the sites without inversion symmetry. The moderate intense emission bands at 578 nm due to the ( 5 D 0 → 7 F 0 ) transition and the bands at 586 and 594 nm correspond to the magnetic dipole ( 5 D 0 → 7 F 1 ) transition that appeared in the PL spectra.…”

“…The moderate intense emission bands at 578 nm due to the ( 5 D 0 → 7 F 0 ) transition and the bands at 586 and 594 nm correspond to the magnetic dipole ( 5 D 0 → 7 F 1 ) transition that appeared in the PL spectra. 28,29 The PL spectra exhibited similar emission bands under different excitation wavelengths. The intense emission was observed under an excitation wavelength of 291 nm.…”

Synthesis and characterization of Gd(OH)3 and Gd2O3 nanorods

“…The preferential growth direction of the rod was reported to be in the 〈001〉 direction [8]. Other morphologies include nanotubes, nanosheets, hollow spheres, nanoflowers, nanoclusters, and nanowires [14][15][16][17][18][19][20][21][22] Du and Tendeloo prepared Gd(OH) 3 nanorods by a hydrothermal method using NaOH as an alkali at 110-150 1C for 24 h [8]. However, Jia et al reported nanotube morphology using ammonia (or NaOH) and Gd(NO 3 ) 3 solution by a precipitation method at 75 1C for 18 h [16].…”

Optimization of Tb3+/Gd3+ Molar Ratio for Rapid Detection of Naja Atra Cobra Venom by Immunoglobulin G-Conjugated GdPO4·nH2O : Tb3+ Nanorods

“…That enables to minimize intrinsic luminescent background emitted from biological samples by employing the time-resolved signal recording process. Many targeted applications such as fluorescent labelling [19], drug delivery [20], and imaging for detecting biological species like virus, bacteria, cell, DNA, RNA molecules, or proteins [15,18,19] of new hybrid nanophosphors containing rare-earth elements (Eu, Tb, and Er) with various host materials (GdPO 4 , Gd 2 O 3 , YVO 4 , and NaYF 4 ) have been carried out so far [20][21][22][23][24][25]. For the synthesis of these materials, numerous chemical methods of luminescent nanomaterials containing rare earth elements have been used such as coprecipitation [5], sol-gel Pechini [6], and hydrothermal/solvothermal method [26][27][28][29].…”

“…For the synthesis of these materials, numerous chemical methods of luminescent nanomaterials containing rare earth elements have been used such as coprecipitation [5], sol-gel Pechini [6], and hydrothermal/solvothermal method [26][27][28][29]. Among these hybrid nanophosphors, Tb 3+ -doped GdPO 4 •nH 2 O nanomaterials are found to be one of the most promising candidates for these abovementioned applications due to these nanomaterials that exhibit strong luminescent intensity, paramagnetic behavior, no toxicity, and ability to minimize photobleaching and photochemical decomposition [22,23,[30][31][32][33]. It was reported in literature that Tb 3+ -doped GdPO 4 •nH 2 O nanomaterials were usually synthesized by the hydrothermal method and the effects of the doping concentration on their luminescent properties were already performed [27,[31][32][33].…”