Quantum well organic

FlG. 13.13. Scheme of hybrid cavity with a semiconductor quantum well in one cavity and, in the coupled cavity, an organic quantum well. Excitons interact through the cavity photon (from (13)). 

FlG. 13.16. Energy relaxation of Wannier-Mott excitons when coupled by the cavity to Frenkel excitons in an organic quantum well. The vertical arrows represent inelastic scattering of Wannier-Mott excitons to Frenkel excitons. For simplicity, possible changes in k are omitted. Reprinted with permission from Agranovich et al. (66). Copyright Elsevier (1997). 

Y. Qiu, Y. Gao, P. Wei, and L. Wang, Organic light-emitting diodes with improved hole-electron balance by using copper phthalocyanine aromatic diamine multiple quantum wells, Appl. Phys. Lett., 80 2628-2630 (2002). 

Dimethylcadmium has found use as a volatile source of Cd for metal organic chemical vapor deposition (MOCVD) production of cadmium-containing semiconductor thin films (qv) such as CdS, Cdj Hg Te, or Cdj Mn Te, as multiple quantum well species (32). Semiconductor-grade material sells for... 

Fabrication or InP/InAs/InP core-multishell heterostructure nanowire arrays shown in Fig. 24 has been achieved by selective area metal-organic vapour phase epitaxy.1 These core-multishell nanowires were designed to accommodate a strained InAs quantum well layer in a higher band gap InP nanowire. Precise control over the nanowire growth direction and the heterojunction formation enabled the successful fabrication of the nanostructure in which all the three layers were epitaxially grown without the assistance of a catalyst. 

Organic-perovskite hybrids that can be easily synthesized through ion exchange reactions can provide useful properties by themselves. Organic ammo-nium-perovskite hybrids self-organize a quantum well structure where a... 

Hybrid 2D Frenkel Wannier Mott excitons at the interface of organic and inorganic quantum wells. Strong coupling regime... 

In the previous sections we have considered the hybridization of Frenkel and Wannier-Mott excitons in two-dimensional (quantum wells) and one-dimensional (quantum wires) geometries. For the sake of completeness, in this subsection we shall briefly and qualitatively discuss the zero-dimensional (0D) case that corresponds to a quantum dot geometry. We have in mind a configuration where a semiconductor QD is located near a small size organic cluster or is just covered by a thin shell of an organic material. 

Although in such an estimation we assumed an infinitely thick layer of organic molecules the obtained results are correct with rather high accuracy even for layers with thickness of order 10 nm because the electric field created by exciton polarization penetrates into the organic layer only on lengths of the order of the semiconductor quantum well thickness and the barrier between the quantum well and the organic layer. 

---