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Organic quantum well and superlattice characteristics in quasi-one-dimensional multiblock copolymers |
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| Authors: | Desheng?Liu Luxia?Wang Jianhua?Wei Shenghao?Han |
| Institution: | 1. School of Physics & Microelectronics, Shandong University, Jinan 250100, China;Department of Physics, Jining Normal University, Jining 272025, China;National Key Laboratory of Crystal Materials, Jinan 250100, China 2. School of Physics & Microelectronics, Shandong University, Jinan 250100, China 3. School of Physics & Microelectronics, Shandong University, Jinan 250100, China;National Key Laboratory of Crystal Materials, Jinan 250100, China |
| Abstract: | A tight-binding calculation was presented to describe multiblock copolymers, such as ...-(PA)x-(PPP)y-...] composed of PA (polyacetylene) and PPP (poly(p-phenylene). It is found that a copolymer has a quantum well and superlattice characteristics, and evident is the effect of the composite lengths, the interfacial couplings and the electron-phonon interactions on the electronic properties of a copolymer. The quantum tunneling, the Franz-Keldysh effect and the quantum confinement can be generated under an applied electric field. These results were compared to those of traditional inorganic quantum well and superlattice systems. |
| Keywords: | organic quantum-well organic superlattice quantum tunneling |
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