Morphology Evolution in High‐Performance Polymer Solar Cells Processed from Nonhalogenated Solvent

Morphology Evolution in High‐Performance Polymer Solar Cells Processed from Nonhalogenated Solvent

A new processing protocol based on non-halogenated solvent and additive is developed to produce polymer solar cells with power conversion efficiencies better than those processed from commonly used halogenated solvent-additive pair. Morphology studies show that good performance correlates with a finely distributed nanomorphology with a well-defined polymer fibril network structure, which leads ...

Solution processed LiF anode modification for polymer solar cells

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Solution-processed flexible polymer solar cells with silver nanowire electrodes.

The conventional anode for organic photovoltaics (OPVs), indium tin oxide (ITO), is expensive and brittle, and thus is not suitable for use in roll-to-roll manufacturing of OPVs. In this study, fully solution-processed polymer bulk heterojunction (BHJ) solar cells with anodes made from silver nanowires (Ag NWs) have been successfully fabricated with a configuration of Ag NWs/poly(3,4-ethylenedi...

Controlling the morphology of nanocrystal-polymer composites for solar cells

We have shown recently that the use of high aspect ratio inorganic nanorods in conjunction with conjugated polymers is a route to obtaining efficient solar cells processed from solution. Here, we demonstrate that the use of binary solvent mixtures in which one of the components is a ligand for the nanocrystals is effective in controlling the dispersion of nanocrystals in a polymer. By varying t...

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