Journal article
Field-effect transistors based on self-organized molecular nanostripes
National Research Council of Italy1
Universite de Mons2
Risø National Laboratory for Sustainable Energy, Technical University of Denmark3
Department of Energy Conversion and Storage, Technical University of Denmark4
Imaging and Structural Analysis, Department of Energy Conversion and Storage, Technical University of Denmark5
Department of Physics, Technical University of Denmark6
Max Planck Institute7
Charge transport properties in organic semiconductors depend strongly on molecular order. Here we demonstrate field-effect transistors where drain current flows through a precisely defined array of nanostripes made of crystalline and highly ordered molecules. The molecular stripes are fabricated across the channel of the transistor by a stamp-assisted deposition of the molecular semiconductors from a solution.
As the solvent evaporates, the capillary forces drive the solution to form menisci under the stamp protrusions. The solute precipitates only in the regions where the solution is confined by the menisci once the critical concentration is reached and self-organizes into molecularly ordered stripes 100-200 nm wide and a few monolayers high.
The charge mobility measured along the stripes is 2 orders of magnitude larger than the values measured for spin-coated thin films.
| Language: | English |
|---|---|
| Publisher: | American Chemical Society |
| Year: | 2005 |
| Pages: | 2422-2425 |
| ISBN: | 383531162X , 383531162x , 3835322907 , 9783835311626 and 9783835322905 |
| ISSN: | 15306984 and 15306992 |
| Types: | Journal article |
| DOI: | 10.1021/nl051685+ |
| ORCIDs: | Andreasen, Jens Wenzel and Nielsen, Martin Meedom |
Capillary flow Crystalline materials Crystallization Deposition Electric currents Electrochemistry Equipment Design Equipment Failure Analysis Field-effect transistors Fluorine Molecular Conformation Nanostructured materials Nanostructures Nanotechnology Self-organized molecular nanostripes Semiconducting organic compounds Spin-coated thin films Stamp-assisted deposition Thin films Thiophenes Transistors Transistors, Electronic alpha-terthienyl article chemistry conformation crystallization electrochemistry equipment equipment design fluorine instrumentation methodology nanomaterial nanotechnology semiconductor terthienyl thiophene derivative ultrastructure
