Carrier Formation Dynamics of Organic Photovoltaics as Investigated by Time-Resolved Spectroscopy
Figure 8
Decomposition of the time-resolved spectra of (a) neat F8T2 film and (b) F8T2/PC70BM blend films. The upper two panels are magnitudes () and lifetimes () of the fast component. The middle two panels are magnitudes () and lifetimes () of the slow component. The bottom panels are magnitudes () of the constant component. Open symbols indicate that the parameter is fixed in the fitting procedure. Star symbols indicate artificial structures due to the notch filter at 800 nm. D*, CT, and D+ represent PIAs due to singlet exciton, CT state, and carrier, respectively.
