Over the past year, improvements to organic photovoltaic (OPVs) cells have been investigated. The most commonly used interfacial layer is formed from the charged polymer poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS). In this project, modifications to gold (Au) and indium tin oxide (ITO) electrodes with porphyrin-based dyads as interfacial layers have been made. Two types of interfacial layers were prepared; A) fullerene-based photo-switched dyads to polarize the cell and enhance the efficiency, and B) porphyrin-based interfacial layers as an electropolymerization promoter for organized photo-active layers. In principle, when the fullerene-based photo-switched dyads are anchored properly to the electrode surfaces (A) the dyads should exhibit a polarizing effect even in their ground states. Triphenylamine (TPA)-functionalized porphyrin monolayers (B) should promote electropolymerization of TPA-based fullerene dyads to mimic the ideal photoactive layer morphology of OPV devices. Figure 1. <img src='https://acs-archive-assets2.s3.amazonaws.com/240nm/uploads/45890_acs.jpg' alt='' />

Syntheses of porphyrin-based interfacial layers for organic solar cell applications

247th National Meeting (2014)

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