[Download] "Theory of Electronic and Optical Properties of Atomically Thin Films of Indium Selenide" by Samuel J. Magorrian ~ Book PDF Kindle ePub Free
eBook details
- Title: Theory of Electronic and Optical Properties of Atomically Thin Films of Indium Selenide
- Author : Samuel J. Magorrian
- Release Date : January 13, 2019
- Genre: Physics,Books,Science & Nature,
- Pages : * pages
- Size : 8962 KB
Description
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.