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Photoluminescence of rare doped uniaxially aligned nanotubes prepared by sputtering with electrospun polyvinylpyrolidone nanofibers as templates
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10.1063/1.3290974
/content/aip/journal/jap/107/2/10.1063/1.3290974
http://aip.metastore.ingenta.com/content/aip/journal/jap/107/2/10.1063/1.3290974
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Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic illustration of the setup for electrospinning uniaxially aligned PVP nanofiber templates. The collector consists of two pieces of conductive metal strips separated by a gap. (b) Typical optical micrograph of the uniaxially aligned nanotubes collected on a Si substrate annealed at for 2 h.

Image of FIG. 2.
FIG. 2.

Typical (a) SEM and (b) TEM images of the uniaxially aligned nanotubes annealed at . The inset in (a) is the cross-section image of a nanotube, and the inset in (b) is the corresponding SAED pattern taken from the sample.

Image of FIG. 3.
FIG. 3.

XRD patterns of nanotubes annealed at different temperatures .

Image of FIG. 4.
FIG. 4.

Raman spectra of nanotubes annealed at different temperatures .

Image of FIG. 5.
FIG. 5.

(a) PL spectra of nanotubes annealed at different temperatures . The inset shows the PL spectra of nanotubes annealed at fitted by mixed Gaussian and Lorentzian in the range of 570–650 nm. (b) The corresponding normalized integrated intensity of the transition as the function of the annealing temperatures.

Image of FIG. 6.
FIG. 6.

(a) PL spectra of nanotubes annealed at different temperatures . (b) The corresponding normalized integrated intensity of the transition as the function of the annealing temperatures.

Image of FIG. 7.
FIG. 7.

PL spectra of (a) doped and (b) doped nanotubes and films annealed at for 2 h in ambient.

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/content/aip/journal/jap/107/2/10.1063/1.3290974
2010-01-25
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photoluminescence of rare earth3+ doped uniaxially aligned HfO2 nanotubes prepared by sputtering with electrospun polyvinylpyrolidone nanofibers as templates
http://aip.metastore.ingenta.com/content/aip/journal/jap/107/2/10.1063/1.3290974
10.1063/1.3290974
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