An article Perylene Diimide Based Organic Photovoltaics with Slot-Die Coated Active Layers from Halogen-Free Solvents in Air at Room Temperature WOS:000492802100068 published article about NON-FULLERENE ACCEPTORS; TO-ROLL FABRICATION; POLYMER SOLAR-CELLS; RING-FUSION; EFFICIENCY; MODULES; OXYGEN in [Tintori, Francesco; Laventure, Audrey; Welch, Gregory C.] Univ Calgary, Dept Chem, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada in 2019.0, Cited 61.0. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8. Safety of Diphenyl oxide
Herein, we investigate the role of processing solvent additives on the formation of polymer-perylene diimide bulk-heterojunction active layers for organic photo-voltaics using both spin-coating and slot-die coating methods. We compare the effect of 1,8-diiodooctane (DIO) and diphenyl ether (DPE) as solvent additives on the aggregation behavior of the non-fullerene acceptor, N-annulated perylene diimide dimer (tPDI(2)N-EH), in neat films and blended films with the benzodithiophene-quinoxaline (BDT-QX, QX-3) donor polymer, processed from toluene in air. DIO processing crystallizes the tPDI(2)N-EH acceptor and leads to the decreased solar cell performance. DPE processing has a more subtle effect on the bulk-heterojunction morphology and leads to an improved solar cell performance. A comparison of the spin-coating vs slot-die coating methods shows that the effect of DPE is prominent for the slot-die coated active layers. While similar device power conversion efficiencies are achieved with active layers coated with both methods (ca. 7.3% vs 6.5%), the use of DPE improves the film quality when the slot-die coating method is employed.
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