Figure 1
From: Hybrid morphology dependence of CdTe:CdSe bulk-heterojunction solar cells

Solar cell structure and hybrid film morphology. (a) The skeleton of the two solar cells. (b) Energy level alignment of the entire solar cell. (c) SEM topology of NTs:QDs solar cell. (d) SEM topology of NTs:NTs solar cell. The cross-sectional SEM images of the (e) NTs:QDs solar cell and (f) NTs:NTs solar cell.