Properties of Heterojunction Solar Cells Based on Organic Phosphorescent Material: PPQF

The triplet exciton is more benefit for organic solar cell than singlet exciton. PQ with long lifetime is an effective unit to form triplet exciton in polymer backbone. PPQF shows much higher PV response than PDHF which is attributes to the efficient exciton dissociation process occurred in PPQF.