Dhanalakshmi J

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The fluorescence response functions and quantum yields of four mixed crystal systems (naphthaleqe and p-terphenyl hosts: anthracene and tetracene guests) have been measured and analysed. The results are consistent with time-independent exciton transfer, and the Powell-Kepler effect is not observed. It is concluded that the latter requires higher defect(More)
ErxTi1-xO2 nanocomposites was prepared by a simple sol-gel method with various proportion of erbium viz., x=0.02, x=0.04, x=0.06, x=0.08 and x=0.10. The prepared nanocomposites were studied using XRD, UV-Vis DRS, Raman spectra, HR-SEM, EDS, TEM, PL and impedance spectroscopy. XRD revealed that modified TiO2 nanocomposites possessed only the anatase phase(More)
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