Figure 2
From: Quantum-Dot-Sensitized Solar Cell with Unprecedentedly High Photocurrent
Photovoltaic performance and femtosecond transient absorption spectra of PbS and PbS:Hg QDs.
(a) Schematic device structure of QD-sensitized solar cell, (b) J-V curves and (c) Normalized JSC as a function of time for PbS:Hg QD-sensitized solar cells with different HgCl2 concentration. Inset is EQE spectra for PbS and 14.6 at% Hg2+ (6 mmol) doped PbS. (d) Transient absorption spectra at 0.5 ps delay. The wavelength of pump light was 490 nm. (e) Transient absorption time profile and (f) Normalized ΔOD at 2 (± 0.1) ps (red), 20 (± 1) ps (blue) and 300 (± 15) ps (black) with standard deviation. The wavelength of probe was 870 nm. (g) Intensity averaged decay time constants (blue) and rise time constants (red) with error bars.
