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

Figure 5

Differential absorption (ΔOD) spectra of (a) PTB7/PC₇₁BM blend, (b) PC₇₁BM neat, and (c) PTB7 neat films at 300 K. 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 [54].

(a)

(b)

(c)