Current OPV Research Directions

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Discotic Mesophase Materials

this thalocyanin Another kind of thalocyanine that is solution processable form molecules that self-organize into columnar stacks. This the kind of configuration that makes molecules good light absorbers and good conductors. An AFM visualization of sheets discotic materials that have been deposited on a single crystal substrate. Dendritic polymers create a spiky surface which may be able to be combined with an suitable electron acceptor layer to form a finely organized heterojunction. Semiconductor nanoparticles built from cadmium selenide 2-5nm in diameter take on interesting electron properties. The particle is capped with ligands to make them processable. The size of the nanoparticle determines the luminescence. The smallest make blue color, the largest makes the red. Used in a solar cell they absorb in the same color ranges.

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