Fig. 1: LiF-based device performance loss analysis. | Nature Communications

Fig. 1: LiF-based device performance loss analysis.

From: Interfacial design strategies for stable and high-performance perovskite/silicon tandem solar cells on industrial silicon cells

Fig. 1

a Device architecture of the perovskite/silicon tandem solar cell investigated in this study. b Absolute photoluminescence spectrum of a triple cation perovskite thin film (red dots, left y-axis) measured under equivalent one-sun conditions and Urbach energy (EU) obtained from photothermal deflection spectroscopy measurements (blue dots, right y-axis) of perovskite film on a quartz substrate. c QFLS values for quartz/PVSK, quartz/PVSK/LiF, quartz/PVSK/AlOx, quartz/PVSK/AlOx/PDAI2, and their corresponding counterparts with C60. For clarity, quartz is omitted from the sample names in the figure. d Summary of calculated FF losses, including non-radiative recombination loss and transport loss of devices. e Average PCE evolution of LiF-based perovskite/silicon tandem solar cells as a function of time under ISOS-D-2I protocol. The device is stored in a nitrogen-filled glove box at 85 °C in the dark for 1000 h. Average data are obtained from 3 cells and the error bars represent the standard deviation.

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