PHOTOELECTRICAL PROPERTIES OF CUINSE2

The steady-state and transient photoconductivity measurements on CuInS e2 films prepared by solution growth technique have been performed as a function of temperature and illumination intensities. Photo-conducti vity is found to increase exponentially with increasing temperature an d the photocurrent (I(ph)) obeys a power law: I(ph) is-proportional-to F(gamma). The transient photoconductivity data show that the rise/dec ay of photocurrent is fast in the beginning and slower thereafter. The overall photoelectric behaviour suggests a bimolecular recombination mechanism for CuInSe2.