An article Unravelling donor-acceptor film morphology formation for environmentally-friendly OPV ink formulations WOS:000486309300024 published article about ORGANIC SOLAR-CELLS; SOLUBILITY PARAMETERS; GREEN SOLVENT; POLYMER; PERFORMANCE; BLENDS; CRYSTALLINITY; MISCIBILITY; CHALLENGES; STRATEGY in [Holmes, Natalie P.; Moons, Ellen] Karlstad Univ, Dept Engn & Phys, S-65188 Karlstad, Sweden; [Holmes, Natalie P.; Munday, Holly; Barr, Matthew G.; Fahy, Adam; Dastoor, Paul C.] Univ Newcastle, Ctr Organ Elect, Callaghan, NSW 2308, Australia; [Thomsen, Lars] ANSTO, Australian Synchrotron, Clayton, Vic 3168, Australia; [Marcus, Matthew A.; Kilcoyne, A. L. David] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA; [van Stam, Jan] Karlstad Univ, Dept Engn & Chem Sci, S-65188 Karlstad, Sweden in 2019.0, Cited 65.0. Name: Diphenyl oxide. The Name is Diphenyl oxide. Through research, I have a further understanding and discovery of 101-84-8
The challenge of coating organic photovoltaics (OPV) from green solvents is to achieve the required nanostructured interpenetrating network of donor and acceptor domains based on a rational choice of solvent approach as opposed to the usual trial-and-error methods. We demonstrate here that we can achieve a bicontinuous interpenetrating network with nanoscale phase separation for the chosen donor-acceptor material system poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl]:phenyl-C-61 butyric acid methyl ester (TQ1:PC61BM) when processing from green solvent ink formulations. This structure is achieved by first calculating the Hansen solubility parameters (HSP) of the donor and acceptor materials, followed by careful choice of solvents with selective relative solubilities for the two materials based on the desired order of precipitation necessary for forming a nanostructured interdigitated network morphology. We found that the relative distances in Hansen space (R-a) between TQ1 and the primary solvent, on the one hand, and PC61BM and the primary solvent, on the other hand, could be correlated to the donor-acceptor morphology for the formulations based on the solvents d-limonene, anisole, and 2-methyl anisole, as well as the halogenated reference solvent o-dichlorobenzene. This nanostructured blend film morphology was characterised with scanning transmission X-ray microscopy (STXM) and transmission electron microscopy (TEM), and the film surface composition was analysed by near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Hansen solubility theory, based on solution thermodynamics, has been used and we propose an HSP-based method that is a general platform for the rational design of ink formulations for solution-based organic electronics, in particular facilitating the green solvent transition of organic photovoltaics. Our results show that the bulk heterojunction morphology for a donor-acceptor system processed from customised solvent mixtures can be predicted by the HSP-based method with good reliability.
Name: Diphenyl oxide. About Diphenyl oxide, If you have any questions, you can contact Holmes, NP; Munday, H; Barr, MG; Thomsen, L; Marcus, MA; Kilcoyne, ALD; Fahy, A; van Stam, J; Dastoor, PC; Moons, E or concate me.
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