Theory of Electronic and Optical Properties of Atomically Thin Films of Indium Selenide
Springer International Publishing (Verlag)
978-3-030-25717-0 (ISBN)
This thesis provides the first comprehensive theoretical overview of the electronic and optical properties of two dimensional (2D) Indium Selenide: atomically thin films of InSe ranging from monolayers to few layers in thickness. The thesis shows how the electronic propertes of 2D InSe vary significantly with film thickness, changing from a weakly indirect semiconductor for the monolayer to a direct gap material in the bulk form, with a strong band gap variation with film thickness predicted and recently observed in optical experiments. The proposed theory is based on a specially designed hybrid k.p tight-binding model approach (HkpTB), which uses an intralayer k.p Hamiltonian to describe the InSe monolayer, and tight-binding-like interlayer hopping. Electronic and optical absorption spectra are determined, and a detailed description of subbands of electrons in few-layer films and the influence of spin-orbit coupling is provided. The author shows that the principal optical excitations of InSe films with the thickness from 1 to 15 layers broadly cover the visible spectrum, with the possibility of extending optical functionality into the infrared and THz range using intersubband transitions.
Part I: Introduction and basics.- Scientific context and motivation.- Laser-plasmas.- Part II: Experimental methods.- High-power lasers.- Transportable Paul trap for isolated micro-targets in vacuum.- Part III: Laser-microplasma interactions.- Laser-driven ion acceleration using isolated micro-sphere targets.- Laser-driven micro-source for bi-modal radiographic imaging.- Part IV: Summary and perspectives.- Summary.- Challenges and perspectives.- Appendix.
| Erscheinungsdatum | 26.08.2020 |
|---|---|
| Reihe/Serie | Springer Theses |
| Zusatzinfo | XII, 87 p. 32 illus., 26 illus. in color. |
| Verlagsort | Cham |
| Sprache | englisch |
| Maße | 155 x 235 mm |
| Gewicht | 168 g |
| Themenwelt | Naturwissenschaften ► Chemie ► Analytische Chemie |
| Naturwissenschaften ► Physik / Astronomie ► Atom- / Kern- / Molekularphysik | |
| Naturwissenschaften ► Physik / Astronomie ► Festkörperphysik | |
| Naturwissenschaften ► Physik / Astronomie ► Theoretische Physik | |
| Schlagworte | 2D Materials • Film thickness dependence • Indium Selenide • K.P Theory • Optical Properties of thin films • Tight-Binding Model |
| ISBN-10 | 3-030-25717-7 / 3030257177 |
| ISBN-13 | 978-3-030-25717-0 / 9783030257170 |
| Zustand | Neuware |
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