Thought this was pretty interesting:

https://www.youtube.com/watch?v=tQmFVcD-Mbo

Don't be misled by the enthusiasm of a Youtube presenter.

It's good to highlight seemingly new technology but Perovskite has been around for quite some time. 

It is a promising addition to silicon solar cells and is destined to become quite useful but it does have it's own problems and it's not there yet.

You might read this to gain a better understanding of the nature of the stuff.

https://www.sciencedaily.com/releases/2022/01/220120140729.htm

If you do a search on this web site you will find plenty more information.