Exceptional Dewetting of Organic Semiconductor Films: The Case of Dinaphthothienothiophene (DNTT) at Dielectric Interfaces
| Autor: | Gina Peschel, Andrea Karthäuser, Thomas Schmidt, Francesca Genuzio, Tobias Breuer, Alexander Fuhrich, Gregor Witte, Hagen W. Klemm |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Graphene Nanotechnology 02 engineering and technology Dielectric 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Pentacene Organic semiconductor chemistry.chemical_compound chemistry law General Materials Science Field-effect transistor Wetting Dewetting Thin film 0210 nano-technology |
| Zdroj: | ACS applied materialsinterfaces. 9(9) |
| ISSN: | 1944-8252 |
| Popis: | The novel organic semiconductor dinaphthothienothiophene (DNTT) has gained considerable interest because its large charge carrier mobility and distinct chemical robustness enable the fabrication of organic field effect transistors with remarkable long-term stability under ambient conditions. Structural aspects of DNTT films and their control, however, remain so far largely unexplored. Interestingly, the crystalline structure of DNTT is rather similar to that of the prototypical pentacene, for which the molecular orientation in crystalline thin films can be controlled by means of interface-mediated growth. Combining atomic force microscopy, near-edge X-ray absorption fine structure, photoelectron emission microscopy, and X-ray diffraction, we compare substrate-mediated control of molecular orientation, morphology, and wetting behavior of DNTT films on the prototypical substrates SiO2 and graphene as well as technologically relevant dielectric surfaces (SiO2 and metal oxides that were pretreated with self-a... |
| Databáze: | OpenAIRE |
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