Organic Photovoltaics

Modern plastic solar cells: materials, mechanisms and modeling

Chiechi, R. C., R. W. A. Havenith, J. C. Hummelen, J. Anton L Koster, and M. A. Loi, "Modern plastic solar cells: materials, mechanisms and modeling", Materials Today, vol. 16, no. 7-8, pp. 281–289, 2013.

Charge Separation in Self-Assembled Monolayers

Biological systems are driven by self-assembly processes that are unimaginably complex compared to what modern chemistry can achieve.  The photosystems of plants and bacteria are one of the most complex and studied biological systems.  The self-assembly of thiolates on gold is one the simplest non-natural systems and also one the most studied.  Is there a realistic intersection between these two?  Figure 1 outlines a very simple concept; using the self-assembly of functional SAMs on gold to create well-defined interfaces.

Improving the Quality of Conjugated Co-Polymers

A key ingredient in organic photovoltaic devices (OPVs) is, of course, the conjugated polymer. Virtually all OPVs (and certainly all of the most efficient) comprise a conjugated polymer that carries the positive charges and a fullerene that carries the negative charges. These so-called bulk-heterojunction (BHJ) structures are, despite their simple preparation, exceedingly complex.



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