In today's world, flexibility and a wide choice of products is one of the key factors in purchasing. Over the years, manufacturers in a wide range of industries have offered more and more choice in purchasing and personalising the product of their choice. In photovoltaics (PV), the development of solar cells and PV modules has also gone in different directions, but it is only in the last decade that more attention has started to be paid to the appearance of the PV modules themselves.
As part of my thesis, I focused on the challenge of changing the colour of a solar cell. The task of the thesis was to design and build an interference colour filter that matches the target colour, while minimising the loss in solar cell performance.
The first part of the thesis explains the operation and design of the interference colour filter.
The second part of the thesis, which constitutes the main part of the thesis, is devoted to simulations of two types of interference filters, both for red, blue and green colour, with different layer thicknesses. We design and analyse the different filter structures on glass, their characteristics under different illumination conditions were carried out. A solution to the problems encountered in the colour of smooth filters under non-perpendicular incidence of light is also researched.
The last part of the thesis is devoted to practical measurements of the designed interference filter and to measurements of the response of a perovskite cell with it. The optical reflectance and transmittance of the colour filter were measured. The current-voltage characteristic of the perovskite cell with and without the filter and the external quantum efficiency were then measured on the cell.
|
