This is a good article Suny. The understanding of Perovskite as a light absorbing material with high charge carry mobility, etc. has come a long ways the past few years. And it seems that QMC has made a "great leap" with its ability to make a stable perovskite.

But a really great challenge to make a commercial solar cell is to have an electrode that is also an economical and stable material that will work with the perovskite. That has to be figured out to be successful at harvesting the energy.