Figure 3

(a) Plot of the charge collection versus applied bias for the as-grown CZTS planar detector at room temperature. The 59.6-keV line was used from an 241Am source. The solid line indicates the Hecht fitting to extract the µτ value for electrons, the inset in Fig. 1a shows the IR transmission image of the whole sample of dimensions ~6.65 × 5.7 × 1.86 mm3, (b–d) high magnification IR transmission microscopic images of an as-grown CZTS sample showing triangular Te inclusions.