title: Highly ordered n/p-co-assembled materials with remarkable charge mobilities.
abstract: Controlling self-organization and morphology of chemical architectures is an essential challenge in the search for higher energy-conversion efficiencies in a variety of optoelectronic devices. Here, we report a highly ordered donor/acceptor functional material, which has been obtained using the principle of ionic self-assembly. Initially, an electron donor π-extended tetrathiafulvalene and an electron-acceptor perylene-bisimide were self-organized separately obtaining n- and p-nanofibers at the same scale. These complementary n- and p-nanofibers are endowed with ionic groups with opposite charges on their surfaces. The synergic interactions establish periodic alignments between both nanofibers resulting in a material with alternately segregated donor/acceptor nanodomains. Photoconductivity measurements show values for these n/p-co-assembled materials up to 0.8 cm(2) V(-1) s(-1), confirming the effectiveness in the design of these heterojunction structures. This easy methodology offers great possibilities to achieve highly ordered n/p-materials for potential applications in different areas such as optoelectonics and photovoltaics.
authors.affiliation: Departamento de Química Orgánica I, Facultad de Ciencias Química, Universidad Complutense , E-28040 Madrid, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: López-Andarias
authors.forename: María José
authors.initials: MJ
authors.lastname: Rodriguez
authors.forename: Carmen
authors.initials: C
authors.lastname: Atienza
authors.forename: Juan Luis
authors.initials: JL
authors.lastname: López
authors.forename: Tsubasa
authors.initials: T
authors.lastname: Mikie
authors.forename: Santiago
authors.initials: S
authors.lastname: Casado
authors.forename: Shu
authors.initials: S
authors.lastname: Seki
authors.forename: José L
authors.initials: JL
authors.lastname: Carrascosa
authors.forename: Nazario
authors.initials: N
authors.lastname: Martín
mesh_terms: D004579:Electron Transport; D006571:Heterocyclic Compounds / Q000737:chemistry; D007094:Imides / Q000737:chemistry; D008958:Models, Molecular; D008968:Molecular Conformation; D057139:Nanofibers / Q000737:chemistry*; D036103:Nanotechnology / Q000379:methods*; D010569:Perylene / Q000031:analogs & derivatives / Q000737:chemistry; D014867:Water / Q000737:chemistry
chemical_list: D006571:Heterocyclic Compounds; D007094:Imides; C510697:perylene bisimide; D014867:Water; D010569:Perylene; C063887:tetrathiafulvalene