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Third-order optical nonlinearity in regio-controlled polythiophene films
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10.1063/1.2051795
/content/aip/journal/apl/87/12/10.1063/1.2051795
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/12/10.1063/1.2051795

Figures

Image of FIG. 1.
FIG. 1.

Chemical structure of head-to-tail poly(3-alkylthiophene). : alkyl group, H: head of thiophene monomer, T: tail.

Image of FIG. 2.
FIG. 2.

Absorption (solid lines, lower and right axes) and spectra obtained by THG method (filled circles, upper and left axes) for the regio-controlled P3HTs. denotes the ratio of the head-to-tail coupling. The energy positions of the zero-phonon absorption and its phonon sidebands seen for the sample are indicated by vertical solid bars.

Image of FIG. 3.
FIG. 3.

(a) versus absorption peak energies . (b) versus .

Tables

Generic image for table
Table I.

Densities of the spin-coated films, absorption peak energies , maximum absorption coefficients , peak energies in third-order nonlinear susceptibility spectra and maximum values of with the various head-to-tail coupling ratios .

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/content/aip/journal/apl/87/12/10.1063/1.2051795
2005-09-12
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Third-order optical nonlinearity in regio-controlled polythiophene films
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/12/10.1063/1.2051795
10.1063/1.2051795
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