Say ferroelectric crystals used to be 0.01% efficient, and this paper brings it to 10%. That would be an increase of 1000x, but still below the current best whi

Say ferroelectric crystals used to be 0.01% efficient, and this paper brings it to 10%. That would be an increase of 1000x, but still below the current best which is ~20%-30%. (The 0.01%/10% percentages are illustrative only, I don't know what is claimed in the paper.)