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Spray-coated contacts from an organic charge transfer complex solution for organic field-effect transistors

AuthorsGeorgakopoulos, Stamatis ; Pérez Rodríguez, Ana ; Campos García, Antonio ; Temiño, Inés; Galindo, Sergi; Barrena, Esther ; Ocal, Carmen ; Mas Torrent, Marta
KeywordsCharge transfer salt
Organic transistor
Organic contact
Issue Date13-Jun-2017
CitationOrganic Electronics 48: 365–370 (2017)
AbstractWe demonstrate the deposition of films of the conducting charge transfer complex TTF-TCNQ from solution by spray-coating. The benefit of spray-coating is the ability to process large volumes of solution, therefore allowing the utilisation of compounds with very low solubility. The sheet resistance in the TTF-TCNQ film is similar to that of the commonly used organic PEDOT:PSS electrodes, with the added benefit of room temperature deposition and no additional thermal treatments. Spray-coated TTF-TCNQ is used as source and drain electrodes for transistors based on the organic semiconductor C8-BTBT, achieving similar performances in terms of mobility and turn-on voltage than when conventional contacts of MoOx/Au are used, whilst exhibiting a slight improvement in the linearity of the output characteristics.
Publisher version (URL)http://dx.doi.org/10.1016/j.orgel.2017.06.020
Appears in Collections:(ICMAB) Artículos
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