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Exciton polarizability and absorption spectra in CdSe/ZnS nanocrystal quantum dots in electric fields
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10.1063/1.4816559
/content/aip/journal/jap/114/4/10.1063/1.4816559
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/4/10.1063/1.4816559

Figures

Image of FIG. 1.
FIG. 1.

The electron and hole energy levels of the ground state and excited states in a CdSe/ZnS NQD with nm as a function of . (a) Electron; (b) hole.

Image of FIG. 2.
FIG. 2.

The exciton binding energy of 1s state in CdSe/ZnS NQDs as a function of: (a) and (b) .

Image of FIG. 3.
FIG. 3.

The radial probability distribution of the electron and hole 1s states in a CdSe/ZnS NQD with nm as a function of radial coordinate for different . (a) Electron; (b) hole. The solid line, dashed line, dotted line, and dashed dotted line are for  = 0 KV/cm, 50 KV/cm, 100 KV/cm, and 200 KV/cm, respectively.

Image of FIG. 4.
FIG. 4.

The exciton transition energy of 1s state in CdSe/ZnS NQDs as a function of for different .

Image of FIG. 5.
FIG. 5.

The excitonic absorption spectra in a CdSe/ZnS NQD with nm as a function of photon energy for different .

Image of FIG. 6.
FIG. 6.

The excitonic absorption coefficient in CdSe/ZnS NQDs as a function of for different . (a) 1s-1s; (b)1p1-1p1(1p-1-1p-1); (c) 1p0-1p0; (d) 1s-1p0; (e) 1p0-1s.

Image of FIG. 7.
FIG. 7.

The exciton stark shift in CdSe/ZnS NQDs as a function of for different . (a) 1s-1s; (b) 1p1-1p1(1p-1-1p-1); (c) 1p0-1p0; (d) 1s-1p0; (e)1p0-1s.

Image of FIG. 8.
FIG. 8.

The exciton polarizability of 1s and 1p ± 1 states in CdSe/ZnS NQDs as a function of .

Tables

Generic image for table
Table I.

Physical parameters of CdSe/ZnS used for the calculation (Ref. ): is the mass of free electron.

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/content/aip/journal/jap/114/4/10.1063/1.4816559
2013-07-25
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Exciton polarizability and absorption spectra in CdSe/ZnS nanocrystal quantum dots in electric fields
http://aip.metastore.ingenta.com/content/aip/journal/jap/114/4/10.1063/1.4816559
10.1063/1.4816559
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