Achieving 17.38% efficiency of ternary organic solar cells enabled by a large-bandgap donor with noncovalent conformational locking
Lin-Yong Xu, Wuxi Tao, Heng Liu, Junhua Ning, Meihua Huang, Bin Zhao, Xinhui Lu, Songting Tan
Abstract
A strategy was used to tune the absorption spectrum and energy levels. BTBR-2F comprehensively improved the <italic>J</italic><sub>sc</sub>, <italic>V</italic><sub>oc</sub>, and FF values of ternary OSCs. The OSC achieved one of the highest PCEs (17.38%) in ternary OSCs with a small molecular donor.
Topics & Concepts
Ternary operationBand gapOrganic solar cellMaterials scienceAbsorption spectroscopyAbsorption (acoustics)Ternary numeral systemOptoelectronicsChemistryPhysicsOpticsPolymerComputer scienceComposite materialProgramming languageOrganic Electronics and PhotovoltaicsPerovskite Materials and ApplicationsConducting polymers and applications