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11 September 2013 Photovoltaics at the nanoscale
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Nanoscale thin film morphology has been identified as an important factor in organic solar cell device func- tionality and efficiency. To better understand the limiting factors, it is important to work at the length scale of these processes. A study of thin films of organic molecules with Kelvin probe force microscopy (KPFM) to observe charge distribution and non-contact atomic force microscopy (NC-AFM) to simultaneously obtain structural information is presented. This allows investigation of the structure-function relationships in molecu- lar photovoltaics at the nanometer scale. PTCDI (3,4,9,10-perylenetetracarboxylic diimide) and CuPc (copper phthalocyanine) are used as organic molecules and are precisely grown on alkali halide substrates.
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Zeno Schumacher, Jessica Topple, Antoni Tekiel, and Peter Grütter "Photovoltaics at the nanoscale", Proc. SPIE 8811, Physical Chemistry of Interfaces and Nanomaterials XII, 881116 (11 September 2013);

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