Influence of altering chlorine substitution positions on the photovoltaic properties of small molecule donors in all-small-molecule organic solar cells
Keli Shi, Beibei Qiu, Can Zhu, Xinxin Xia, Xiaonan Xue, Jinyuan Zhang, Yan Wan, Shihua Huang, Lei Meng, Xinhui Lu, Zhiguo Zhang, Yongfang Li
Abstract
We synthesized two new chlorinated small molecule donors, named SM1-α-Cl and SM1-β-Cl. The SM1-β-Cl:Y6 blend film displays better molecular stacking properties and charge transfer (CT) state yield, resulting in a better photovoltaic performance.
Topics & Concepts
Small moleculeMaterials scienceStackingPhotovoltaic systemOrganic solar cellChlorineMoleculeYield (engineering)Substitution (logic)Charge (physics)PhotochemistryCrystallographyOrganic chemistryPolymerChemistryComposite materialBiochemistryEcologyComputer scienceMetallurgyProgramming languageQuantum mechanicsBiologyPhysicsOrganic Electronics and PhotovoltaicsPerovskite Materials and ApplicationsConducting polymers and applications