--- res: bibo_abstract: - Hydrogelation, the self-assembly of molecules into soft, water-loaded networks, is one way to bridge the structural gap between single molecules and functional materials. The potential of hydrogels, such as those based on perylene bisimides, lies in their chemical, physical, optical, and electronic properties, which are governed by the supramolecular structure of the gel. However, the structural motifs and their precise role for long-range conductivity are yet to be explored. Here, we present a comprehensive structural picture of a perylene bisimide hydrogel, suggesting that its long-range conductivity is limited by charge transfer between electronic backbones. We reveal nanocrystalline ribbon-like structures as the electronic and structural backbone units between which charge transfer is mediated by polar solvent bridges. We exemplify this effect with sensing, where exposure to polar vapor enhances conductivity by 5 orders of magnitude, emphasizing the crucial role of the interplay between structural motif and surrounding medium for the rational design of devices based on nanocrystalline hydrogels.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Max foaf_name: Burian, Max foaf_surname: Burian - foaf_Person: foaf_givenName: Francesco foaf_name: Rigodanza, Francesco foaf_surname: Rigodanza - foaf_Person: foaf_givenName: Nicola foaf_name: Demitri, Nicola foaf_surname: Demitri - foaf_Person: foaf_givenName: Luka foaf_name: D̵ord̵ević, Luka foaf_surname: D̵ord̵ević - foaf_Person: foaf_givenName: Silvia foaf_name: Marchesan, Silvia foaf_surname: Marchesan - foaf_Person: foaf_givenName: Tereza foaf_name: Steinhartova, Tereza foaf_surname: Steinhartova - foaf_Person: foaf_givenName: Ilse foaf_name: Letofsky-Papst, Ilse foaf_surname: Letofsky-Papst - foaf_Person: foaf_givenName: Ivan foaf_name: Khalakhan, Ivan foaf_surname: Khalakhan - foaf_Person: foaf_givenName: Eléonore foaf_name: Mourad, Eléonore foaf_surname: Mourad - foaf_Person: foaf_givenName: Stefan Alexander foaf_name: Freunberger, Stefan Alexander foaf_surname: Freunberger foaf_workInfoHomepage: http://www.librecat.org/personId=A8CA28E6-CE23-11E9-AD2D-EC27E6697425 orcid: 0000-0003-2902-5319 - foaf_Person: foaf_givenName: Heinz foaf_name: Amenitsch, Heinz foaf_surname: Amenitsch - foaf_Person: foaf_givenName: Maurizio foaf_name: Prato, Maurizio foaf_surname: Prato - foaf_Person: foaf_givenName: Zois foaf_name: Syrgiannis, Zois foaf_surname: Syrgiannis bibo_doi: 10.1021/acsnano.8b01689 bibo_issue: '6' bibo_volume: 12 dct_date: 2018^xs_gYear dct_isPartOf: - http://id.crossref.org/issn/1936-0851 dct_language: eng dct_publisher: ACS@ dct_title: Inter-backbone charge transfer as prerequisite for long-range conductivity in perylene bisimide hydrogels@ ...