Fig. 4: Photovoltaic performance and stability of PSCs with buffers. | Nature Communications

Fig. 4: Photovoltaic performance and stability of PSCs with buffers.

From: Cross-linked multifunctional bilayer polymer buffer for enhanced efficiency and stability in perovskite solar cells

Fig. 4

a J-V curves of the BCP and PEI/PDMEA-based device. b The PV parameters statistic of BCP and PEI/PDMEA devices. The boxes show the 25th and 75th percentiles, and the whiskers display the 5th and 95th percentiles. The median and mean are indicated by the dividing lines across the boxes and the open square symbols, respectively. The maximum and minimum values are represented by the cross symbols. c IPCE spectra of BCP and PEI/PDMEA PSCs. d J–V curve of the certified PEI/PDMEA-based device with an active area of 1.01 cm2 and the inset shows a photograph of the device. e J − V characteristics of the p-i-n PSCs with absorbers of various bandgaps applying PEI/PDMEA buffer. f Thermal stability during storage at 85 oC for 2000 h following ISOS-D-2I protocol. Four samples were applied for BCP and PEI/PDMEA groups, respectively, and the data is plotted with standard deviations (SD). g MPP tracking of encapsulated BCP and PEI/PDMEA devices under simulated 1-sun illumination at 50% relative humidity (RH) and 65 °C following ISOS-L-3 protocol.

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