Fig. 4: IEF drives charge separation.

a Excited charge density difference between the PTA and PTCDA cells (set with carbonyl oxygen). b The tested IEF intensity, c impedance and d transient absorption decay kinetics at ~5000 nm of PTCDA and PTA.

a Excited charge density difference between the PTA and PTCDA cells (set with carbonyl oxygen). b The tested IEF intensity, c impedance and d transient absorption decay kinetics at ~5000 nm of PTCDA and PTA.