Editing Zone melting (section)

===Solar cells===
In [[solar cell]]s, float zone processing is particularly useful because the single-crystal silicon grown has desirable properties. The bulk charge [[carrier lifetime]] in [[float-zone silicon]] is the highest among various manufacturing processes. Float-zone carrier lifetimes are around 1000 microseconds compared to 20–200 microseconds with [[Czochralski method]], and 1–30 microseconds with cast [[polycrystalline silicon]]. A longer bulk lifetime increases the efficiency of [[solar cell]]s significantly.{{Citation needed|date=February 2021}}