Mostrando ítems 1-10 de 3301
DFT study of the optical properties and substituent effects in macrocyclic systems formed by metalloporphyrins for their potential application in solar cells
(Universidad Andrés Bello, 2012)
Dye-sensitized solar cells (DSCs) were designed by Michael Griitzel. They have become as a promising inexpensive alternative to light-current conversion. Basically, DSCs are constituted by nanocrystalline films of a ...
Estudo das propriedades microestruturais e ópticas do BaMoO4 processado em hidrotermal assistido por microondas
(Universidade Estadual Paulista (Unesp), 2009-09-18)
O estudo das propriedades fotoluminescentes nos diferentes materiais tanto orgânicos e inorgânicos tem despertado muito o interesse da comunidade científica. Dentre os molibdatos, destacamos o molibdato de bário (BAMoO4) ...
Estrutura eletrônica de anéis quânticos
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Física - PPGF, 2011-08-09)
The nanoscopic structures with ring topology, or quantum rings, have attracted the interest due to their unique rotational symmetry and the possibility of checking fundamental quantum phenomena. Among them, the study of ...
Electronic and optical properties of Quasi-2D nanostructures and exfoliated systems
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Física - PPGFCâmpus São Carlos, 2017-10-30)
This thesis is aiming to study, according to a theoretical approaches, the electronic and optical properties of quasi-2D semiconductor quantum systems. Using the k · p model as basis we obtained a satisfactory set of results ...
Optical and transport properties of p-i-n GaAs/AlAs resonant tunneling diode
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Física - PPGF, 2014-05-26)
In this thesis, we have investigated the optical and transport properties of a p-i-n GaAs-AlAs resonant tunneling diode (RTD). The possibility of controlling and significantly varying the density of carriers accumulated ...
Electron localization in intramolecular proton transfer
(Universidad de Chile, 2019)
The electron localization function (ELF) is a scalar field that accounts of the excess of electronic kinetic energy due to Pauli repulsion between electrons with the same spin. With this function, it is possible to divide ...
Structural, morphological and optical properties of Ca10V6O25
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Química - PPGQCâmpus São Carlos, 2020-05-05)
Modeling the structure and morphology of crystals is of great interest in the field of science and industry, as these factors are strongly linked in determining the properties of materials. That said, Ca10V6O25 compounds ...