15 “Polymer–Oxide” Micro-/Nanocomposites: Background and Promises
257
Fig. 15.3 Excitation and
emission spectra of pure
regenerated cellulose fibers
[51]
Fig. 15.4 Photoluminescence spectra of pure cellulose fibers, cellulose fibers with 7YSZ-0.5Eu,
and reference powder; the samples were excited by 260 nm wavelength [51]
position of this maximum that differs from the maximum position observed for
pure additive may suggest the presence of energy transfer processes between the
cellulose fiber and the incorporated fillers. The luminescence spectra of the modified
cellulose exhibit several PL peaks associated with the electronic transitions 5 D 0 ➔
7 F j within Eu 3+ ion. Regarding data shown in the Fig. 15.4, it can be concluded that
manifestation of the own cellulose luminescence is minimal [51].
257
Fig. 15.3 Excitation and
emission spectra of pure
regenerated cellulose fibers
[51]
Fig. 15.4 Photoluminescence spectra of pure cellulose fibers, cellulose fibers with 7YSZ-0.5Eu,
and reference powder; the samples were excited by 260 nm wavelength [51]
position of this maximum that differs from the maximum position observed for
pure additive may suggest the presence of energy transfer processes between the
cellulose fiber and the incorporated fillers. The luminescence spectra of the modified
cellulose exhibit several PL peaks associated with the electronic transitions 5 D 0 ➔
7 F j within Eu 3+ ion. Regarding data shown in the Fig. 15.4, it can be concluded that
manifestation of the own cellulose luminescence is minimal [51].