Simulação computacional de materiais bidimensionais baseado no elemento boro

• Ano de defesa: 2018
• Autor(a) principal: Silvestre, Gustavo Henrique
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Uberlândia; Brasil; Programa de Pós-graduação em Física
• Palavras-chave em Português: Boro; Boron; Metais; Metals; Funcionais de densidade; Density functionals; Física; Physics; Borofeno; Superredes; Heterojunções; Materiais 2D; Monocamadas; Teoria do funcional da densidade; Borophene; Superlattices; Heterojunctions; 2D materials; Monolayers; DFT; CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::FISICA DA MATERIA CONDENSADA::ESTRUTURAS ELETRONICAS E PROPRIEDADES ELETRICAS DE SUPERFICIES INTERFACES E PELICULAS
• Link de acesso: https://repositorio.ufu.br/handle/123456789/23381; http://dx.doi.org/10.14393/ufu.di.2018.1238

In this work we investigate the behavior of mechanical and electronic properties of lateral heterostructures based in of boron sheets, known in the literature as borophene. Through DFT calculations, we replicate the literature data for two distinct phases of borophene, which were the basis for the assembly of the superlattices. The superlattices were designed in two distinct ways, to compare the differences caused by the stitching directions. Among the electronic properties, we investigate the mettalic character of the structures, the range of states in the regions near the Fermi level, as well as the formation and behavior of conducting channels in heterostructures. The energy stability of the structures was also analyzed.