Crystallinity modulation of donors by heteroatom side-chain engineering and solvent additive achieving 14.3% all-small-molecule organic solar cells
Dandan Li, Jie Wang, Lin Xie, Jinfeng Ge, Rong Zhou, Qun Gu, Daobin Yang, Jianqi Zhang, Ziyi Ge
Abstract
BDT-S:Y6-BO blend film, displays a smoother surface, proper crystallinity, more face-on preferred orientation and a better nano interpenetrating network phase separation morphology than BDT-O:Y6-BO blend film, resulting in effective and balanced carrier mobilities.
Topics & Concepts
CrystallinityHeteroatomSolventMaterials scienceChemical engineeringMoleculePhase (matter)Morphology (biology)Polymer chemistryOrganic solventOrganic chemistryChemistryComposite materialEngineeringGeneticsBiologyRing (chemistry)Organic Electronics and PhotovoltaicsPerovskite Materials and ApplicationsThin-Film Transistor Technologies