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Oxygen defects-modulated green photoluminescence of Tb-doped nanofibers
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10.1063/1.3496471
/content/aip/journal/apl/97/14/10.1063/1.3496471
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/14/10.1063/1.3496471
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Figures

Image of FIG. 1.
FIG. 1.

SEM images of (a) as-spun and (b) -annealed nanofibers. (c) XRD patterns of 3% Tb-doped nanofibers annealed in air at .

Image of FIG. 2.
FIG. 2.

(a) PL spectra of 3% Tb-doped nanofibers annealed in air at . (b) PL spectra of containing different concentration of Tb annealed in air at .

Image of FIG. 3.
FIG. 3.

(a) PL spectra of 3% Tb-doped nanofibers annealed in (i) air, (ii) , (iii) at . Inset shows the XRD patterns of (ii) and (iii) samples. (b) The evolution of the green PL intensity at 543 nm of 3% Tb-doped nanofibers as a function of thermal treatments process at and , respectively.

Image of FIG. 4.
FIG. 4.

PLE spectrum (monitored at 543 nm) of in nanofibers. The inset is the schematic diagram of the energy transfer process mediated by O vacancy: (i) exciting or trapped e-h pairs at O vacancy, (ii) transferring energy to Tb ions and exciting electrons to the resonant high levels, (iii) phonon assisted non-radiative transition of , and (iv) radiative transition of .

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/content/aip/journal/apl/97/14/10.1063/1.3496471
2010-10-07
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Oxygen defects-modulated green photoluminescence of Tb-doped ZrO2 nanofibers
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/14/10.1063/1.3496471
10.1063/1.3496471
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