Abstract
dc:description.abstractTransition-metal dichalcogenides (TMDC) crystals have emerged as a new class of semiconductors that display distinctive properties at monolayer thickness. Their electrical, electronic and optical properties are of particular interest and importance for applications in optoelectronics as light emitters, detectors, and photovoltaic devices. Monolayer MoSe_2 and WSe_2 have an intrinsic band-gap in the visible region of the solar spectrum (400nm - 700nm) which makes them distinct from other 2-D materials like graphene. In this study, the electrical, electronic and optical properties of monolayer and bulk MoSe_2 and WSe_2 are studied. The electronic band structures are presented for monolayer and bulk MoSe_2 and WSe_2. The optical properties of MoSe_2 and WSe_2 comprises of the determination and analysis of the spectral properties of these materials, at monolayer and bulk, in the range of 1.50 - 3.0 eV by MATLAB simulations. The optical band gaps of TMDC monolayers have been simulated from their spectral dependence of the absorption coefficient. The optical properties of these materials on silicon, gold and fused silica substrates are simulated.
Degree
thesis:*- Name thesis:degree_name
- Master of Science in Materials Science and Engineering - (M.S.)
- Discipline thesis:degree_discipline
- Committee for the Interdisciplinary Program in Materials Science and Engineering
- Year
- 2017
Author and committee
dc:creator, dc:contributor.*- Author dc:creator
-
- Rassay, Sushant Shashikant
- Contributors dc:contributor
-
- N. M. Ravindra
- Yuanwei Zhang
- Michael Jaffe
Subjects
dc:subject × 4Identifiers
dc:identifier.*- Repository record dc:identifier
- https://digitalcommons.njit.edu/theses/8
- OAI identifier oai:identifier
- oai:digitalcommons.njit.edu:theses-1007