Publications by authors named "Shri Bhagwan"
The combination of 4,4,4-trifluoro-1-phenyl-1,3-butanedione (TFPB) and pyrazine (pyz) with Tb ions forms two distinct types of complexes, represented by the formulas [Tb(TFPB)(L)], where L is either HO or pyz, and [(Tb(TFPB))pyz]. A detailed examination of the impact of the surrounding environment on the photophysical properties of these synthesized complexes was conducted. Photoluminescence (PL) analysis indicated that the magnetic dipole transition (D → F) is dominant in Tb(iii)-based systems.
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- Researchers synthesized yellowish-white light-emitting Gd Si O :xDy nanophosphors (x = 1-5 mol%) using a solution combustion method and analyzed them with fluorescence spectrophotometry and X-ray diffraction.
- The phosphors crystallized in a triclinic phase, and the unit-cell volume decreased as Dy ion concentration increased, due to size differences between Gd and Dy.
- Under UV light, the phosphors emitted distinct colors at ~482 nm (blue), ~578 nm (yellow), and ~670 nm (red), with findings indicating effective energy transfer mechanisms that are relevant for developing white light-em
Terbium(III)-doped yttrium aluminate perovskite (YAP:xTb ) (x = 0.01-0.08 mol) was synthesized using a simple gel-combustion method.
View Article and Find Full Text PDFTrivalent europium complexes exhibit good luminescent characteristics. A series of octacoordinated ternary europium complexes with fluorinated diketone and heteroaromatic auxiliary unit were synthesized. The synthesized europium complexes were characterized by elemental, thermal, electrochemical and spectroscopic analyses.
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