Regensburg 2019 – wissenschaftliches Programm
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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 37: Poster Session III
CPP 37.54: Poster
Mittwoch, 3. April 2019, 11:00–13:00, Poster B1
Coupled organic-inorganic nanostructures with mixed linker molecules — •Florian Graßl1, Eduard Meister1, Andre Maier2, 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]. A well-known and working organic ligand is 1,2-Ethanedithiol (EDT), especially with PbSe nanocrystal [3]. Here we focus on the introduction of a mixture of two organic ligands. Using the dip-coating technique of fabricating COIN layers from PbS nanocrystal with a mixture of Zinc β-Tetraaminophthalocyanine (Zn4APc) and EDT as organic linker molecules, we elucidate the carrier transport and device performance. We compare this mixture of linker molecules with single Zn4APc- and EDT-ligands in transistors, diodes and solar cells.
[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
[3] J.Luther et al., Nano Letters (2008), doi:10.1021/nl802476m