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a) Chemical structure of PDTSTPD, PC71BM, host solvent molecule (TMB and CB), and additive (1,5‐DMN and DIO). b) Current–voltage (J–V) curves of devices processed by different solvents under simulated 100 mW cm−2 AM 1.5 G illumination, device configuration is ITO/PFNOX/Active layer/MoO3/Al, the active area of the device is 0.16 cm2.
