CHEM01200604004 Shri Sanyasinaidu Boddu - Homi Bhabha ...

different amounts of Eu 3+ .
Fig.86:
(a) Emission spectra obtained after excitation at 255 nm, (b) decay curves
corresponding to 5 D 4 level of Tb 3+ ion from BiPO 4 :Tb 3+ nanorods prepared at
185°C
Fig.87: (a) Emission spectra from BiPO 4 :Tb 3+ (5 at%) and BiPO 4 :Eu 3+ (5 at%),Tb 3+ (5
at%) nanomaterials after excitation at 255 nm. The corresponding excitation
spectrum is shown in Fig.87 (b) Decay curve corresponding to 5 D 4 level of Tb 3+
from these samples are shown in Fig.87 (c).
Fig.88:
(a) Emission spectrum obtained after excitation at 350 nm (b) excitation spectra
monitored at 573 nm emission (c) decay curve corresponding to 4 F 9/2 level of
Dy 3+ ion in BiPO 4 :Dy 3+ nanorods.
Fig.89:
(a) Emission spectrum obtained after 402 nm excitation, (b) excitation spectra
monitored at 597 nm emission and (c) decay curve corresponds to 4 G 5/2 level of
Sm 3+ in BiPO 4 :Sm 3+ nanorods.
Fig.90: XRD patterns of ZnGa 2 O 4 nanoparticles prepared in solvents containing
different values of EG-H 2 O ratios.
Fig.91: FT-IR spectra of ZnGa 2 O 4 nanoparticles prepared in solvents containing
different amounts of EG and water.
Fig.92:
(a) Emission spectra of ZnGa 2 O 4 nanoparticles prepared in solvents containing
different ratios of EG and H 2 O. Corresponding excitation spectra are shown in
Fig.92 (b).
Fig.93: Schematic representation of possible energy transitions in ZnGa 2 O 4
nanoparticles.
Fig.94:
XRD patterns of ZnGa 2 O 4 nanoparticles prepared with different concentration of
Ga 3+ ions.
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