ShieldPowerTM polymers were developed at Phillips 66 for use in the photoactive layer of scalable organic photovoltaics. This talk will highlight their development from lab to pilot scale evaluation, focusing on the key parameters that enable ShieldPowerTM polymers to reach high power conversion efficiencies using scalable coating techniques. The polymers combine high conductivity, as determined by time-resolved microwave conductivity experiments, and good solubility to enable photoactive layers with films &gt;200 nm in thickness to be coated from non-halogenated solvents via slot-die coating in ambient air in a pilot fabrication line. This resulted in the pilot scale production of modules that reach 5.3% power conversion efficiency. Further tuning the polymers’ absorption properties and structures allows for blends with a stable non-fullerene electron acceptor to achieve power conversion efficiencies that remain constant over 250+ hours of illumination.

Development of polymers for scalable organic photovoltaics

ACS Spring Meeting 2021

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