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Hybrid excitons in parallel organic and inorganic semiconductor quantum wires

3 Hybrid excitons in parallel organic and inorganic semiconductor quantum wires [Pg.372]

Here L is the length of the wires, me and nip are the effective electron and hole masses, respectively the function 0 ze zh) describes the relative ID motion of the bound electron and the hole. The operators (2) e(ln (13.39) [Pg.374]

In calculating the hybridization parameter T (see eqn 13.34) we meet the following matrix elements of the polarization operators between the ground ( 0)) and the corresponding excited states F, k) or W, k). With the use of eqn (13.36) and (13.38) we obtain  [Pg.374]

Here Vy denotes the derivative with respect to the transverse variables (i, x, y). The function Kq possesses the following limiting behavior (30)  [Pg.375]

As follows from eqn (13.48), the interwire coupling is suppressed exponentially for excitons with wavevectors k 1/R, i.e. for a major part of the Brillouin zone. In contrast, coupling of excitons with relatively small wavevectors k 1/R is quite efficient. This is different from the case of a 2D system of quantum wells where the coupling at small wavevectors is suppressed because the electric field outside of a uniformly polarized layer vanishes. [Pg.375]




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Exciton

Exciton/excitonic

Excitons

In parallel

Inorganic semiconductors

Inorganic-organic hybrides

Organic semiconductor

Organic-inorganic hybrids

Parallel hybrid

Quantum semiconductors

Quantum wires

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