Tailoring non-fullerene acceptors using selenium-incorporated heterocycles for organic solar cells with over 16% efficiency
Han Yu, Zhenyu Qi, Jianquan Zhang, Zhen Wang, Rui Sun, Yuan Chang, Huiliang Sun, Wentao Zhou, Jie Min, Harald Ade, He Yan
Abstract
The selenium substitution strategy was applied to develop two new A′-DAD-A′-type small molecular acceptors. The resulting selenium-incorporated molecules exhibit red-shifted absorption and an enhanced photon response, leading to high device efficiencies of over 16%.
Topics & Concepts
SeleniumFullereneOrganic solar cellAbsorption (acoustics)MoleculePhotochemistryMaterials scienceChemistryOrganic chemistryComposite materialPolymerOrganic Electronics and PhotovoltaicsConducting polymers and applicationsPerovskite Materials and Applications