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Growth and optical properties of -sexithiopene doped para-sexiphenyl nanofibers
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Figures

Image of FIG. 1.

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FIG. 1.

Molecular structures of PSP (a) and 6T (b).

Image of FIG. 2.

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FIG. 2.

PL and absorbance spectra of PSP (solid lines) and 6T (dashed lines). The PSP absorption spectrum was taken from Ref. 5.

Image of FIG. 3.

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FIG. 3.

AFM images of undoped PSP needles (a) and pure 6T (b). (c) and (d) are AFM images of PSP needles with the highest concentration of 6T in two different magnifications 900 and , respectively. The height scale for (a), (c), and (d) is 250 nm and 1000 nm for (b).

Image of FIG. 4.

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FIG. 4.

Normalized PL spectra of 6T doped PSP nanofibers with different concentrations.

Image of FIG. 5.

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FIG. 5.

Polarization dependence of the PL of the 6T doped PSP sample with the highest concentration.

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/content/aip/journal/apl/95/1/10.1063/1.3176404
2009-07-08
2014-04-19

Abstract

The deposition of highly crystalline self-assembled para-sexiphenyl (PSP) nanofibers doped with -sexithiophene (6T) is reported. It is demonstrated that the morphology and orientation of the nanofibers are not altered by the presence of 6T, while the photoluminescence(PL) emission can be modified by the doping concentration, suggesting effective incorporation of the dopant into the nanofibers. Moreover, strong dependence of the PL intensity with the excitation polarization underlines the high molecular order within the crystalline matrix. Due to the expected dipole-dipole interaction provided by the highly ordered structures the observed results can be explained by a Förster energy transfer.

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Scitation: Growth and optical properties of α-sexithiopene doped para-sexiphenyl nanofibers
http://aip.metastore.ingenta.com/content/aip/journal/apl/95/1/10.1063/1.3176404
10.1063/1.3176404
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