Thank you very much for such a clear and nice presentation. I am new to perovskites and I do believe that I get good intro now.

I wonder how this work is progressing. Seems the silver perovskite might be expensive. How about the potassium/bismuth perovskite? Can't get much cheaper than those elements.

Electric cars batteries sometimes sets themselves on fire, hard to extinguish and dangerously polluted, but they are in the market since they still make people dependent from big energy companies.

Wow, Dr. Slavney...very nice. But we still want to use Pb ink....for the best devices...what then...Drybox????