Self-filtering red narrowband photodetector based on a perovskite/organic multi-stack photoactive layer

A multi-stacked narrowband photodetector composed of perovskite/D18/PC 71 BM was prepared, achieving an external quantum efficiency of 30.36% with FWHM 39.40 nm, dark current of 1.64 × 10 −8 mA cm −2 , and the specific detectivity of 3.97 × 10 10 Jones.