Structural and Optoelectronic Properties of CdSe Tetrapod Nanocrystals for Bulk Heterojunction Solar Cell Applications

Figure 6

Scanning electron microscopic (SEM) image and surface roughness (RMS) of the (CdSe+PCPDTBT) (7 : 3) active layer annealed at 150°C with (a, c) OPA-capped and (b, d) BA-capped CdSe.

(a)

(b)

(c)

(d)