Optical properties of III-V semiconductors : the influence of multi-valley band structures
著者
書誌事項
Optical properties of III-V semiconductors : the influence of multi-valley band structures
（Springer series in solid-state sciences, 120）
Springer-Verlag, c1996
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注記
Includes bibliographical references (p. [179]-193) and index
内容説明・目次
内容説明
This monograph is concerned with the III-V bulk and low-dimensional semiconductors, with the emphasis on the implications of multi-valley bandstructures for the physical mechanisms essential for opto-electronic devices. The optical response of such semiconductor materials is determined by many-body effects such as screening, gap narrowing, Fermi-edge singularity, electron-hole plasma and liquid formation. Consequently, the discussion of these features reflects such interdependencies with the dynamics of excitons and carriers resulting from intervalley coupling.
目次
1. Introduction to Semiconductor Band Structures.- 1.1 Electronic States in Crystalline Solids.- 1.1.1 The One-Electron Approximation.- 1.1.2 Bloch Waves and the Band Structure Model.- 1.2 Band Structure of III-V Semiconductors.- 1.3 Some General Properties of Multi-Valley Band Structures.- 2. Excitons in Multi-Valley Semiconductors.- 2.1 Basic Properties of Three-Dimensional Excitons.- 2.2 Direct-to-Indirect Crossover in Bulk Semiconductors.- 2.3 Exciton Dynamics in AlxGa1?xAs Near Crossover.- 2.4 Excitons in Low-Dimensional Structures.- 2.5 Direct-to-indirect Transitions in 2D and 1D Structures.- 3. Many-Body Effects in Multi-Valley Scenarios.- 3.1 Introduction to Screening in Highly Excited Semiconductors.- 3.2 Band-Gap Renormalization in Bulk Semiconductors.- 3.2.1 Time-Resolved Electron-Hole Plasma Luminescence.- 3.2.2 The Multi-Valley Model for Band-Gap Renormalization.- 3.2.3 Differential Gap Renormalization.- 3.3 Gap Renormalization in Low-Dimensional Systems.- 3.3.1 Subband Renormalization in Quantum Wells.- 3.3.2 Band-Gap Narrowing in Quantum Wires.- 3.4 Screening in One-Component Plasmas.- 3.5 Electron-Hole Droplet Formation.- 3.5.1 Picosecond Electron-Hole Droplet Formation in Indirect-Gap AlxGa1?xAs.- 3.5.2 Quantum-Confined Electron-Hole Droplets.- 3.6 Optical Nonlinearities at the Direct Gap of Indirect-Gap Semiconductors.- 4. Intervalley Coupling.- 4.1 Theoretical Considerations.- 4.1.1 Transfer Between Real Band States and Scattering Potentials.- 4.1.2 Transitions Involving Virtual Intermediate States.- 4.2 Optical Spectroscopy of Intervalley Coupling.- 4.2.1 Timescales of Carrier Dynamics in Semiconductors.- 4.2.2 Deformation-Potential Scattering.- 4.2.3 Alloy-Disorder-Induced Intervalley Coupling.- 4.2.4 Real-Space Transfer in Type-II Heterostructures.- 4.3 Indirect Stimulated Emission.- 5. Summary and Outlook.- References.
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