Extended Data Fig. 6: Changes in the electrical conductivity of spiro-OMeTAD:LiTFSI films fabricated using pristine, O2- and CO2-bubbled spiro-OMeTAD:LiTFSI solutions, and the conductivity changes of pristine films over time upon exposure to air. | Nature

Extended Data Fig. 6: Changes in the electrical conductivity of spiro-OMeTAD:LiTFSI films fabricated using pristine, O2- and CO2-bubbled spiro-OMeTAD:LiTFSI solutions, and the conductivity changes of pristine films over time upon exposure to air.

From: CO2 doping of organic interlayers for perovskite solar cells

Extended Data Fig. 6

a, Electrical conductivities (σ) of the films fabricated with pristine, O2-treated and CO2-treated spiro-OMeTAD:LiTFSI solutions. b, Electrical conductivity evolution for a pristine spiro-OEMeTAD:LiTFSI film in air over time. Central bars or empty circles in the graphs represent average values obtained from 4 samples, and error bars show deviations.

Source data

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