Samuel J. Magorrian

Theory of Electronic and Optical Properties of Atomically Thin Films of Indium Selenide

• Broschiertes Buch

Produktbeschreibung

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.

Produktdetails

• Springer Theses
• Verlag: Springer / Springer International Publishing / Springer, Berlin
• Artikelnr. des Verlages: 978-3-030-25717-0
• 1st ed. 2019
• Seitenzahl: 100
• Erscheinungstermin: 25. August 2020
• Englisch
• Abmessung: 235mm x 155mm x 6mm
• Gewicht: 166g
• ISBN-13: 9783030257170
• ISBN-10: 3030257177
• Artikelnr.: 59894792

Inhaltsangabe

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.