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- Electronic States and Optical Transitions in Solids
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- Electronic States and Optical Transitions in Semiconductor Heterostructures
Recent results on the optical properties of monolayer and few layers of semiconducting transition metal dichalcogenides are reviewed.
National Library of Australia. Search the catalogue for collection items held by the National Library of Australia. Bassani, Giuseppe Franco. Electronic states and optical transitions in solids,. Electronic states and optical transitions in solids, by F.
Electronic States and Optical Transitions in Solids
In solid-state physics , the electronic band structure or simply band structure of a solid describes the range of energy levels that electrons may have within it, as well as the ranges of energy that they may not have called band gaps or forbidden bands. Band theory derives these bands and band gaps by examining the allowed quantum mechanical wave functions for an electron in a large, periodic lattice of atoms or molecules. Band theory has been successfully used to explain many physical properties of solids, such as electrical resistivity and optical absorption , and forms the foundation of the understanding of all solid-state devices transistors, solar cells, etc. The electrons of a single, isolated atom occupy atomic orbitals each of which has a discrete energy level. When two or more atoms join together to form a molecule , their atomic orbitals overlap.
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We develop an empirical tight binding approach for the modeling of the electronic states and optical properties of Si nanocrystals embedded in a SiO 2 matrix. To simulate the wide band gap SiO 2 matrix we use the virtual crystal approximation. This model of the SiO 2 matrix allows us to reproduce the band structure of real Si nanocrystals embedded in a SiO 2 matrix. In this model, we compute the absorption spectra of the system. The calculations are in an excellent agreement with experimental data.
From F Bassani; Giuseppe Pastori Parravicini; R A Ballinger,. Electronic states and optical transitions in solids, Franklin Book Co. (originally published in.
Electronic States and Optical Transitions in Semiconductor Heterostructures
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Dresselhaus 1. Bekefi and A. The central question is the relationship between experimental observations and the electronic energy levels energy bands of the solid. In the infrared photon energy region, information on the phonon branches is obtained. These issues are the major concern of Part II of this course.
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