title: Efficient charge transport in semisynthetic zinc chlorin dye assemblies.
abstract: We have studied the charge transport properties of self-assembled structures of semisynthetic zinc chlorins (ZnChls) in the solid state by pulsed radiolysis time-resolved microwave conductivity measurements. These materials can form either a two-dimensional (2D) brickwork-type slipped stack arrangement or a one-dimensional (1D) tubular assemblies, depending on the exact molecular structure of the ZnChls. We have observed efficient charge transport with mobilities as high as 0.07 cm(2) V(-1) s(-1) for tubular assemblies of 3(1)-hydroxy ZnChls and up to 0.28 cm(2) V(-1) s(-1) for 2D stacked assemblies of 3(1)-methoxy ZnChls at room temperature. The efficient charge transporting capabilities of these organized assemblies opens the way to supramolecular electronics based on biological systems.
authors.affiliation: Optoelectronic Materials Section, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, 2628 BL, Delft, The Netherlands.
authors.forename: Sameer
authors.initials: S
authors.lastname: Patwardhan
authors.forename: Sanchita
authors.initials: S
authors.lastname: Sengupta
authors.forename: Laurens D A
authors.initials: LD
authors.lastname: Siebbeles
authors.forename: Frank
authors.initials: F
authors.lastname: Würthner
authors.forename: Ferdinand C
authors.initials: FC
authors.lastname: Grozema
mesh_terms: D004396:Coloring Agents / Q000138:chemical synthesis / Q000737:chemistry*; D004579:Electron Transport; D008665:Metalloporphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D008958:Models, Molecular; D008968:Molecular Conformation
chemical_list: D004396:Coloring Agents; D008665:Metalloporphyrins; C558702:zinc chlorin