Write a short introduction to a scientific paper exploring interface and grain boundary effects in perovskite solar cells. Mention the importance of solar cells in the energy transition, as well as the shortcomings of conventional silicon solar cells and how perovskite cells can help overcome them.
Here's a possible introduction for a scientific paper exploring interface and grain boundary effects in perovskite solar cells:

Solar cells have become increasingly important as the world shifts towards a more sustainable and renewable energy economy. While conventional silicon solar cells have been the most widely used, they suffer from several limitations, such as high production costs, poor performance in low-light conditions, and limited flexibility. Perovskite solar cells have emerged as a promising alternative due to their high power conversion efficiency, low cost, and ease of manufacturing.

Despite their great potential, perovskite solar cells still face some challenges, particularly in terms of their stability and reliability. One of the main factors affecting the performance of perovskite solar cells is the quality of the interfaces and grain boundaries between the various layers of the cell. The behavior of these interfaces and grain boundaries can strongly influence the efficiency and stability of the solar cell.

This paper aims to explore the effects of interface and grain boundary characteristics on the performance of perovskite solar cells. By investigating the fundamental physical and chemical processes that occur at these interfaces, we hope to gain a deeper understanding of the mechanisms that control the efficiency and stability of perovskite solar cells. Our findings will provide valuable insights for the development of more efficient and stable perovskite solar cells, which could play a crucial role in the transition towards a more sustainable and renewable energy economy.