I would like to highlight a recent article by Michael Grätzel published in Nature Materials which shows in my opinion a very nice view of the emergence, development, and problems to be addressed in the field of Perovskite Solar Cells. The article covers all the relevant aspects of this novel technology in a brief and clear way, which results very helpful for those non-familiar with the topic or willing to contribute to it.
Special emphasis is given to the issues rising in the characterisation due to hysteresis effects, and the problems to be addressed in order for the technology to reach the market. In this respect, stability studies seem to be scarce and the high toxicity of Pb compounds has to be overcome by searching new perovskite materials.
