The limitation of the mobility of charge carriers by dynamical Coulomb screening due to mobile ions has been analyzed for a heterogeneous system with spatially separated interpenetrating conducting paths. A finite time of charge screening has been taken into account. An expression connecting the mobility of charge carriers with the ionic conductivity in the other conducting channels and with the screening has been derived. The correlation between the electron mobility and the ion conductivity has been demonstrated experimentally by time-of-flight and impedance spectroscopy measurements for electron injection into a porous network of sintered TiO2 nanoparticles.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据