Fabrication and degradation performance analysis of perovskite solar cells

Abstract

Methyl–ammonium lead–halide perovskites are acknowledged as highly promising materials for photovoltaic applications.The popularity of these materials is due to the high efficiency of ready photovoltaic devices comparable to the efficiency of industrial silicon solar cells as well as the possibility of significant reduction in production cost. Perovskite materials have a straight and narrow bandgap, as a result of which they have a high light absorption efficiency comparable to silicon;  and to obtain solar cells requires a thin layer of a solution obtained from solutions, which significantly reduces the production of solar cells from perovskite. The fabrication process for perovskite solar cells is rather simple and does not require high temperatures. Also, the ease of manufacturing of laboratory samples gives an opportunity to develop this technology with low capital expenditures and to join to the global research and trends in this field. The paper describes the results of fabrication and study of degradation under the influence of external factors, the atmosphere of perovskite films and solar cells obtained at a temperature of 100° C by centrifugation, which makes it possible to apply uniform films with a thickness of several nanometers to several microns easy and quickly.

Key words: alternative energy, photovoltaics, perovskite solar cells.