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Field-effect transistors with organic semiconductor layers assembled from aqueous colloidal nano composites
- Source :
- Langmuir 23 (2007): 2030–2036. doi:10.1021/la062371k, info:cnr-pdr/source/autori:Dionigi C., Stoliar P., Porzio W., Destri S., Cavallini M., Bigotti I., Brillante A., Biscarini F./titolo:Field-effect transistors with organic semiconductor layers assembled from aqueous colloidal nanocomposites/doi:10.1021%2Fla062371k/rivista:Langmuir/anno:2007/pagina_da:2030/pagina_a:2036/intervallo_pagine:2030–2036/volume:23
- Publication Year :
- 2007
-
Abstract
- We demonstrate field effect transistors based on organic semiconductor molecules dispersed in a self-organized polystyrene (PS) latex bead matrix. An aqueous colloidal composite made of PS and tetrahexylsexithiophene (H4T6) is deposited with a micropipet into the channel of a bottom-contact field effect transistor. The beads self-organize into a network whose characteristic distances are governed by their packing. The semiconductor molecules crystallize in the interstitial voids, leading to the growth of large interconnected domains. Depending on the bead size and the ratio between H4T6 and PS, the fraction of the different phases in the polymorph can be controlled. In the transistors where the H4T6 metastable "red phase" is the largest, the device response and the charge mobility are comparable to those of sexithienyl thin films grown by high-vacuum sublimation.
- Subjects :
- ORGANIC SEMICONDUCTORS
Materials science
Nanotechnology
Colloid
chemistry.chemical_compound
THIN FILMS
Electrochemistry
field effect transistors
General Materials Science
Thin film
Spectroscopy
Nanocomposite
organic semiconductor
business.industry
H4T6
Surfaces and Interfaces
Condensed Matter Physics
equipment and supplies
COLLOIDAL NANOCOMPOSITES
Organic semiconductor
Semiconductor
polystyrene (PS) latex bead
chemistry
Chemical engineering
Field-effect transistor
Sublimation (phase transition)
Polystyrene
business
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Langmuir 23 (2007): 2030–2036. doi:10.1021/la062371k, info:cnr-pdr/source/autori:Dionigi C., Stoliar P., Porzio W., Destri S., Cavallini M., Bigotti I., Brillante A., Biscarini F./titolo:Field-effect transistors with organic semiconductor layers assembled from aqueous colloidal nanocomposites/doi:10.1021%2Fla062371k/rivista:Langmuir/anno:2007/pagina_da:2030/pagina_a:2036/intervallo_pagine:2030–2036/volume:23
- Accession number :
- edsair.doi.dedup.....eb6ddf32731e703eb64a1246c66e60fd