H-Bonding Tuned Self-Assembly of Phenylene–Thiophene–Thiophene–Phenylene Derivatives at Surfaces: Structural and Electrical Studies
| Autor: | Emanuele Orgiu, Thomas Breiner, Paolo Samorì, Florian Dötz, Marcel Kastler, Massimo Bonini, Leszek Zalewski |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Thermogravimetric analysis
Materials science Analytical chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound General Energy Differential scanning calorimetry chemistry Chemical engineering Phenylene law Monolayer Thiophene Thermal stability Self-assembly Physical and Theoretical Chemistry Scanning tunneling microscope 0210 nano-technology |
| Zdroj: | The Journal of Physical Chemistry C. 115:9753-9759 |
| ISSN: | 1932-7455 1932-7447 |
| DOI: | 10.1021/jp201556y |
| Popis: | Several physicochemical properties of molecular ensembles can be modulated by controlling intermolecular interactions. The design and synthesis of π-conjugated rodlike molecules exposing groups that can undergo H-bondings was exploited to develop materials featuring tunable 2D self-assembly at surfaces, thermal stability, order in micrometer-thick films, and electrical characteristics in organic field-effect transistors (OFETs). As a model system, we have chosen phenylene–thiophene–thiophene–phenylene derivatives with side groups exposing either COOH or COOMe moieties. The structure and dynamics within monolayers at the solid–liquid interface was explored by in-situ scanning tunneling microscopy (STM) experiments. The thermal behavior of the materials was investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The order in micrometer-thick films was studied by grazing-incidence small-angle X-ray scattering (GISAXS), whereas the electrical characteristics of the differ... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|