Comparison of the Morphology Development of Polymer-Fullerene and Polymer-Polymer Solar Cells during Solution-Shearing Blade Coating

Polymer solar cell by blade coating

Polymer bulk hetero-junction solar cells of poly(3-hexylthiophene) (P3HT) donor and (6,6)-phenyl-C61-butyric acid methyl ester (PCBM) acceptor are fabricated by blade coating in toluene solution. Desired donor–acceptor self-organization is achieved without the slow drying process and high boiling point solvent. Power conversion efficiency is 3.8%, much higher than the 2.6% obtained by spin coat...

Morphology of polymer/fullerene bulk heterojunction solar cells

Within the different organic photovoltaic devices the conjugated polymer/fullerene bulk heterojunction approach is one of the foci of today’s research interest. These devices are highly dependent on the solid state nanoscale morphology of the two components (donor/acceptor) in the photoactive layer. The need for finely phase separated polymer–fullerene blends is expressed by the limited exciton...

Controlling Solution-Phase Polymer Aggregation with Molecular Weight and Solvent Additives to Optimize Polymer-Fullerene Bulk Heterojunction Solar Cells

J. A. Bartelt, W. R. Mateker, Prof. M. D. McGehee Department of Materials Science and Engineering Stanford University Stanford , CA , 94305 , USA E-mail: [email protected] Dr. J. D. Douglas, Prof. J. M. J. Fréchet Department of Chemistry University of California Berkeley , CA , 94720 , USA Dr. A. El Labban, Prof. J. M. J. Fréchet, Prof. P. M. Beaujuge Physical Sciences and Engineering Divis...

Morphology and Efficiency : The case of polymer / ZnO solar cells

Spin coating of an evaporating polymer solution

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