Fig. 5: Performances of perovskite solar modules achieved by integrating the LODT-HTL with TFSI additives modified perovskite layers. | Nature Communications

Fig. 5: Performances of perovskite solar modules achieved by integrating the LODT-HTL with TFSI additives modified perovskite layers.

From: Synergistic versatile bistriflimide salts in light-accelerated spiro-OMeTAD oxidation and perovskite module photovoltaics engineering

Fig. 5: Performances of perovskite solar modules achieved by integrating the LODT-HTL with TFSI additives modified perovskite layers.

a Absorption spectra evolution of the LODT-spiro solution co-doped with NH4TFSI and OATFSI, showing increased absorbance under continuous white LED illumination within 9 min. The curve was acquired every minute. b TRPL decay for perovskite films covered by a conventional LiTFSI-spiro HTL and the optimized LODT-HTL co-doped with NH4TFSI and OATFSI. c Schematic of PSM architecture alongside a photograph of a fabricated 5 × 5 cm PSM. d J-V curves under reverse (RS) and forward scans (FS) for the control device (with pristine perovskite and conventional HTL) and the target device (with KTFSI-doped, OATFSI modified perovskite, and co-doped LODT-HTL). e, f Long-term operational stability of the control and target devices tested under the ISOS-L-1 protocol (continuous 1-sun illumination at 25 ± 10 °C in a N2 atmosphere without encapsulation).

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