Perovskite solar cell and preparation method thereof

Abstract

The invention relates to a perovskite solar cell and a preparation method thereof. The cell comprises a transparent substrate, a groove is formed on the upper surface of the transparent substrate, anda plurality of first through holes and a plurality of second through holes are formed on the transparent substrate. The conductive materials are deposited in the first through holes and the second through holes to form the first conductive through holes and the second conductive through holes respectively, a transparent conductive layer is arranged on the bottom surface of the groove, and a plurality of metal strips are electrically connected with the transparent conductive layer. The other ends of the metal strips are in contact with the first conductive through holes, and a hole transport layer, a perovskite functional layer, an electron transport layer and a metal electrode are prepared on the bottom surface of the groove. A second insulating dielectric layer is formed on the upper surface of the transparent substrate, the metal conductive layer is electrically connected with the metal electrode and the second conductive through hole, and a passivation layer and a reflection layerare further arranged on the upper surface of the transparent substrate. The perovskite solar cell provided by the invention is excellent in sealing performance.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a perovskite solar cell and a preparation method thereof. Background technique [0002] With the advent of the Internet era and the rapid development of science and technology, people's demand for energy continues to increase, and energy issues have become an important issue that needs to be solved. However, traditional fossil energy sources (oil, coal, natural gas, etc.) are increasingly depleted, and the use of traditional fossil energy sources also brings environmental pollution problems. Searching for new clean energy sources is a widely concerned issue. Among them, the research on wind energy, geothermal energy, tidal energy, solar energy and other new energy sources has been paid more and more attention. Solar cells can directly convert light energy into electrical energy, so they have very broad development prospects. At present, silicon-based solar cells with matur...

AI Technical Summary

Problems solved by technology

At present, silicon-based solar cells with mature technology have high conversion efficiency and stable performance, but the production process of silicon-based solar cells is complicated and requires large-scale equipment, resulting in high cost. These shortcomings restrict its further development

In recent years, solar cells based on perovskite materials have attracted widespread attention, but the stability of current perovskite solar cells needs to be further improved

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