Anantharaman, Surendra B. Messmer, Daniel Sadeghpour, Amin Salentinig, Stefan Nüescha, Frank Heier, Jakob 2019-04-04 Supramolecular assemblies with controlled morphology are of paramount importance for energy transport in organic semiconductors. Despite considerable freedom in molecular design, the preparation of dyes that form one dimensional J-aggregates is challenging. Here, we demonstrate a simple and effective route to functionalize dendronized polymers (DPs) with J-aggregates to construct tubular DP/J-aggregate nanowires. When J-aggregates are adsorbed onto DPs anchored to glass substrates, they assemble into microcrystalline domains typical for J-aggregates adsorbed on functionalized surfaces. Differently, the complexation between the dendronized polymer and J-aggregates in solution leads to dense packing of J-aggregate strands on the periphery of the DPs. Using a layer-by-layer (LBL) technique, DPs loaded with J-aggregates can also be adsorbed onto a DP monolayer. In this case, the thin film absorption spectra are narrower and indicate higher ratios of J-aggregate to monomer and dimer absorption than bare J-aggregates deposited similarly. The demonstration of J-aggregate adsorption on filamentous polymeric templates is a promising step toward artificial 1D light harvesting antennas, with potential applications in opto- electronic devices. application/pdf https://folia.unifr.ch/global/documents/307650 https://folia.unifr.ch/documents/307650/files/sal_ecb.pdf https://folia.unifr.ch/documents/307650/files/sal_ecb_sm.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1039/C8NR10357G info:eu-repo/semantics/openAccess License undefined Nanoscale. - 2019, vol. 11, no. 14, p. 6929–6938 info:eu-repo/classification/udc/54 Excitonic channels from bio-inspired templated supramolecular assembly of J-aggregate nanowires http://purl.org/coar/resource_type/c_6501