Dresden 2017 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 50: Poster: Organic Electronics and Photovoltaics, Molecular Excitations

CPP 50.22: Poster

Wednesday, March 22, 2017, 18:30–21:00, P3

Charge carrier dynamics in bilayer coupled organic-inorganic nanostructures — •Florian Grassl¹, Alexander Hofmann¹, Eduard Meister¹, Alexander André², Michelle Weber², Marcus Scheele², and Wolfgang Brütting¹ — ¹Institute of Physics, University of Augsburg, 86135 Augsburg, Germany — ²Institute for Physical and Theoretical Chemistry, University of Tübingen, 72076 Tübingen, Germany

Coupled organic-inorganic nanostructures (COINS) utilize organic semiconductors as crosslinking ligands to facilitate charge conduction between semiconductor nanocrystals. They offer the perspective to combine efficient carrier transport with a high degree of structural order [1], as it has been successfully demonstrated in field-effect transistors [2]. Here we focus on out-of-plane charge carrier dynamics of COIN layers in diodes and solar-cells. Using three different techniques of fabricating COIN layers from PbS nanocrystals with Cu-phthalocyanine as organic linker molecules, we elucidate the influence of preparation conditions on carrier transport and device performance. Additionally we compare different organic and inorganic hole injection layers and the impact of the COIN production process on their electrical properties.

[1] M.Scheele et.al., Physical Chemistry Chemical Physics (2015), doi:10.1039/c4cp03094j
[2] A.André et al., Chemistry of Materials (2015), doi:10.1021/acs.chem mater.5b03821