Journal Article A-D-A′-D-A type small molecules Published Erratum detectivity external quantum efficiency green solvents low energy loss mixed additives multi-length-scale morphologies multiple D-A effect oligomers organic light-emitting devices organic photodetectors organic solar cells porphyrin quinoidal molecular semiconductor short-wavelength infrared short‐wavelength infrared photodetection small molecules sub-gap turn-on voltage ternary organic solar cells wide composition tolerance