Investigation of Indoor Stability Testing of Polymer Solar Cell

Figure 8

AFM topography spectra of PCPDTTBTT:PCBM blends annealed at different temperatures of 80°C, 100°C, and 120°C for 10 min 2 μm × 2 μm scan size: (a) no annealing, (b) being annealed at 80°C, (c) being annealed at 100°C, and (d) being annealed at 120°C; AFM 3D spectra of PCPDTTBTT:PCBM blends annealed at different temperatures: (e) no annealing, (f) being annealed at 80°C, (g) being annealed at 100°C, and (h) being annealed at 120°C.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)