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Questions related from Sitakanta Panda
Dear All, I optimized an organic fluorophore in the ground state using Gaussian 16 program. After optimization, the maximum force, RMS force and RMS displacement were found to be converged....
24 November 2021 4,239 3 View
Hi, Usually, many trivalent lanthanides show a strong CT band (200-300 nm) due to electron transfer from ligand (say O2-) to Ln 4f states. However, in solids, I have observed that Gd3+ does not...
12 January 2020 2,055 0 View
Hi, I came across the attached journal wherein quantum efficiency of luminescent material has been calculated from their PL and Reflectance spectra as follows: The quantum efficiency of CeO2: x%...
01 January 1970 3,609 4 View
Suppose I have synthesized three phosphors of a particular luminescent species in three hosts. I observed from XRD patterns that crystallinity in the three host are different and luminescence...
01 January 1970 7,913 10 View
Hi, Sometimes, we observe secondary phase though very small (say 5-10 %) in PXRD pattern of synthesized luminescent phosphors wchich could be due to the purity (%) of reactants used for synthesis...
01 January 1970 6,765 4 View
Hi, As we know the band gap as well as luminescence increase with the decrease in particle size. On the other hand, nano-phosphors exhibit better luminescence compared to its bulk ones. What are...
01 January 1970 7,111 2 View