Inversion of the sign of the "linear" photovoltaic effect in semiconductors
Andrianov A.V. , Valov P.M., Yaroshetskii I.D.
A temperature and concentration inversion of the sign of the photovoltaic effect (PVE) in semiconductors was observed. The temperature inversion is due to a change of the PVE mechanism from an intraband to an impurity mechanism. The concentration inversion is caused by a derealization of the impurity states.