Perovskite-silicon tandem solar cells: a pathway to 30 per cent efficiency

该项目旨在开发一种新型太阳能电池，其效率远远高于目前的商业硅太阳能电池。提高电池效率是降低太阳能发电成本的最有效方法之一，但硅电池正在接近实际和理论极限。该项目预计通过在顶部添加低成本太阳能电池来创建串联设备，从而提高硅太阳能电池的效率。预期的结果是太阳能电池可以将30%以上的入射阳光转化为电能，而目前的太阳能电池只能将20- 25%的入射阳光转化为电能。开发廉价、高效的太阳能电池将进一步降低太阳能发电的成本，加速清洁能源的使用。

This project aims to develop a new type of solar cell that is much more efficient than today’s commercial silicon solar cells. Increasing cell efficiency is one of the most effective ways to reduce the cost of solar electricity, but silicon cells are approaching practical and theoretical limits. This project expects to boost the efficiency of silicon solar cells by adding a low-cost solar cell on top to create a tandem device. The expected outcome is a solar cell that can convert more than 30 per cent of incident sunlight into electricity, compared to 20-25 per cent for current cells. Developing cheap, high efficiency solar cells should further reduce the cost of solar electricity, and accelerate the uptake of clean energy.