Charge-carrying films for solar cells made quickly and cleanly – Nature.com

The next generation of solar cells could be based on materials called metal halide perovskites. Such devices are cheap, can be fabricated easily from solutions of the constituent materials and convert light into electricity with high efficiency (about 25.5% for cutting-edge devices1). Perovskite solar cells contain a film of an organic semiconductor, which is essential for achieving high power-conversion efficiency. But a key process in the preparation of these films, known as the doping step, typically…

Click here to view the original article.