Fig. 4: Thermal noise for different effective bandgap.
From: Noise and detectivity limits in organic shortwave infrared photodiodes with low disorder
a Shunt resistance of organic BHJ photodiodes as a function of the effective bandgap. The orange series are devices with the same polymer donor P1 matched with different non-fullerene acceptors. The gray series are devices using different polymer donors with the acceptor [70]PCBM. The dashed lines are linear fits to the boundary of each series. Schematics of the electronic structures and carrier distributions for devices b in the dark and c under illumination. The shaded areas represent states filled up to the quasi-fermi levels EFp/n by photogenerated charges.
