چكيده به لاتين
A solar cell is an electro-optical device that directly converts sunlight into energy through the photovoltaic effect. The solar cell consists of three main layers. Electron absorber, which is an n-type semiconductor, holes absorber layer, which is a p-type semiconductor, and photon energy absorber layer, which is located in the region of the other two layers. By receiving energy from photons, the photon energy transfers the electron from the semiconductor capacitance level to the level, as a result, an electron is released and a hole is produced next to it. Photon energy absorption area has undergone many changes over time. The types of solar cells are defined depending on the type of absorber layer, one of the types of solar cells is perovskite solar cells, in which the photon energy absorbing material has a perovskite structure.
Various methods have been reported to increase the efficiency of perovskite solar cells, including trapping electrons and preventing the recombination of electrons produced in the light absorber region with holes for better absorption by the electron absorber layer. In order to achieve this goal, a set of nanostructures is used in the light absorbing layer. The nanostructure uses the oscillation of electrons, the plasmonic effect, and creates a trap for electrons, preventing them from the recombination with holes, and as a result, the efficiency of the solar cell increases.
In this thesis, we intend to investigate the effect of plasmonics in increasing the efficiency of perovskite solar cells by making changes in the used nanostructure (including changes in the type, size, shape, etc. of metal nanoparticles).
