Figure 4
From: Broadband energy transfer to sensitizing dyes by mobile quantum dot mediators in solar cells
Co–sensitization enabling the efficient reduction of oxidized dyes.
(a) Back side EQE of solar cells (inset: illustration of a photon directed to the counter electrode side to collect higher EQE responses generated by the electrolyte region). (b) Dynamics of redox diffusion (Dred) versus illumination power (Dred was calculated from electrochemical impedance spectroscopy). (c) Absorption–absorption overlap between N719 dye and CdSe QDs. (d) Absorption time decay of oxidized dye attached to TiO2 films measured in a solution containing redox components and QDs.
