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Effect of shell thickness on two-photon absorption and refraction of colloidal CdSe/CdS core/shell nanocrystals
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10.1063/1.3665400
/content/aip/journal/apl/99/23/10.1063/1.3665400
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/23/10.1063/1.3665400
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) The absorption spectra of CdSe cores and CdSe/CdS core/shell NCs. The insets show the TEM and HRTEM images of the CdSe cores (a) and CdSe/CdS NCs (4 MLs) (b).

Image of FIG. 2.
FIG. 2.

Measured CA (a), OA (b), and CA/OA (c), Z-scans of toluene (△), CdSe cores (○), and CdSe/CdS NCs (3 MLs) (▽). The black solid lines are the fitting curves by the Z-scan theoretical formulae of Ref. 14.

Image of FIG. 3.
FIG. 3.

The χ(3), Reχ(3), and Imχ(3) values of these six samples. The inset shows Reχ(3) alone to illustrate its variation clearly.

Image of FIG. 4.
FIG. 4.

The theoretically calculated effective nonlinear susceptibility according to the local field theory. The solid dots are the experimentally data.

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/content/aip/journal/apl/99/23/10.1063/1.3665400
2011-12-06
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of shell thickness on two-photon absorption and refraction of colloidal CdSe/CdS core/shell nanocrystals
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/23/10.1063/1.3665400
10.1063/1.3665400
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