Fig. 4: Performance and stability of 2T PTSCs.

a Cross-section SEM image of PTSCs with NTS modification. b J-V curves of the best-performing PTSCs. c Histogram of PCEs for 50 PTSCs. d MPP tracking of control device and device with NTS under 1 sun illumination in the N2 environment. e Long-term stability test of control device and device with NTS PTSCs stored in a N2-filled glovebox.