Fig. 2From: Photoelectrical Properties Investigated on Individual Si Nanowires and Their Size DependenceThe topography (a) and current images of Si NWs with the length of 800 nm and diameter of 190 nm under different laser intensities of b 0, c 2, d 4, e 6 and f 8 W/cm2. g presents the averaged current (Iav) over the nanowires as a function of laser intensity. h shows the photoresponse as a function of laser intensityBack to article page