Regulating phase separation and molecular stacking by introducing siloxane to small-molecule donors enables high efficiency all-small-molecule organic solar cells
Yilin Chang, Xiangwei Zhu, Yanan Shi, Yanan Liu, Ke Meng, Yanxun Li, Jingwei Xue, Lingyun Zhu, Jianqi Zhang, Huiqiong Zhou, Wei Ma, Zhixiang Wei, Kun Lü
Abstract
Siloxane with low surface tension can regulate the intermolecular interactions, and optimize the phase separation morphology and molecule stacking, finally contributing to an excellent PCE of 16.4% with small energy loss for ASM-OSCs.
Topics & Concepts
StackingSmall moleculeSiloxaneIntermolecular forceMaterials scienceMoleculeOrganic solar cellPhase (matter)Chemical engineeringChemical physicsChemistryOrganic chemistryPolymerComposite materialEngineeringBiochemistryOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications