The simple chemistry is pretty specific and doesn't work very well (it usually makes a semiconductor instead, and even when it does work, it's a few tiny impure specks most of the time).
Why is it unbelievable?
The simple chemistry is pretty specific and doesn't work very well (it usually makes a semiconductor instead, and even when it does work, it's a few tiny impure specks most of the time).
Why is it unbelievable?