Carrier Formation Dynamics in Prototypical Organic Solar Cells as Investigated by Transient Absorption Spectroscopy

Figure 12

ΔOD spectra of (a) PTB7/C₇₀ bilayer, (b) C₇₀ neat, and (c) PTB7 neat films. Top panels show optical density (OD) of the films at 300 K. Downward arrows represent the wavelength of the pump pulse. The data were replotted from [59].

(a)

(b)

(c)