Conductivity is proportional to the product of mobility and carrier concentration. For example, the same conductivity could come from a small number of electrons with high mobility for each, or a large number of electrons with a small mobility for each.
Conductivity is proportional to the product of mobility and carrier concentration. For example, the same conductivity could come from a small number of electrons with high mobility for each, or a large number of electrons with a small mobility for each
Thanks, Mr. Bouchama, and Mr. Kalaiselvan. I get it now. But that's my mistake. I want to know can I say a high electrical conductivity is vital for photovoltaic materials? Is there a relationship between carrier mobility and carrier diffusion length?