Verwandte Artikel zu Conjugated Conducting Polymers (Springer Series in...
Inhaltsangabe
1. Introduction.- References.- 2. An Overview of the Theory of ?-Conjugated Polymers.- 2.1 Synopsis.- 2.2 Theoretical Concepts, Models and Methods.- 2.2.1 The Born-Oppenheimer Approximation.- 2.2.2 Ab Initio Calculations.- 2.2.3 Model Hamiltonians.- 2.3 The Hückel and SSH Independent-Electron Theories.- 2.3.1 From Polyethylene to Polyacetylene.- 2.3.2 Bond Alternation.- 2.3.3 The Strength of the Electron-Phonon Coupling.- 2.3.4 Stability of the Dimerized State and the Phonon Spectrum.- 2.3.5 Spatially Localized Nonlinear Solitons, Polarons and Bipolarons.- 2.3.6 Predictions of the Model.- 2.4 Hubbard A Paradigm for Correlated Electron Theories.- 2.4.1 Ground State and Excitation Spectrum.- 2.4.2 Correlation Functions.- 2.4.3 Relevance for Conjugated Polymers.- 2.5 The One-Dimensional Peierls-Hubbard Model.- 2.5.1 The Model Hamiltonian and its Parameters.- 2.5.2 Methods.- 2.6 The Combined Effects of Electron-Phonon and Electron-Electron Theory and Experiment.- 2.6.1 Ground State.- 2.6.2 Electronic Excitations and Excited States.- 2.6.3 Vibrational Raman and Infrared Spectroscopy.- 2.7 Beyond Simple Discussion and Conclusions.- 2.7.1 Effects of Disorder.- 2.7.2 Interchain Coupling and Three-Dimensional Effects.- 2.7.3 Lattice Quantum Fluctuations.- 2.7.4 Doping Effects and the Semiconductor-Metal Transition.- 2.7.5 Transport.- 2.7.6 Concluding Remarks.- References.- 3. Charge Transport in Polymers.- 3.1 Models for the Insulating and Semiconducting States.- 3.1.1 The Electronic Ground State.- 3.1.2 The Nature of the Charge Carriers.- 3.1.3 Disorder Along the Chains.- 3.1.4 Low and Intermediate Doping.- 3.2 Models for Transport Processes.- 3.2.1 Conduction in Extended States.- 3.2.2 Conduction in Localized States.- 3.2.3 Transport in One Dimension.- 3.2.4 Transport by Quasi-Particles.- 3.3 Experiments in the Insulating and Semiconducting State.- 3.3.1 Polyacetylene.- 3.3.2 Other Polymers.- 3.4 The Semiconductor-Metal Transition and the Metallic State.- 3.4.
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