Nonradiative and Radiative Recombination in CdS Polycrystalline Structures

Figure 4

Optical field microscopy image (a), a PL spectrum integrated over inspected area (b), and the topography of the distribution of the green-light luminescence (c) and of the red-light luminescence (d), respectively, recorded on the CdS sample of the II-type.

(a)

(b)

(c)

(d)