Halogenated Solvent Processed Ternary Organic Electronics for Efficient Photo and Dark Current
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초록
내용
In this study, we fabricated efficient and stable ternary organic electronic devices electronic devices (OEDs) by introducing the third component guest acceptor with high lowest unoccupied molecular orbital (LUMO) level. We investigated the photovoltaic and detection performances of the ternary OEDs compared with binary based, through the current-voltage characteristic, atomic force microscope images, impedance spectroscopy, and photoresponse speed analyses. The optimized ternary strategy-based OEDs revealed the boosted charge transfer and external charge injection blocking abilities. These favorable properties originated from ternary OEDs with high LUMO level of the guest acceptor inducing proper internal bulk resistance and good durability by externally stimuli. Because of its advantages, introduction of proper materials as a third component into the PM6:BTP-4F-12 binary blend is promising strategy for the efficient and stable ternary OEDs.