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Integration of covalent and non-covalent functionalized SWCNTs in FETs

: Kossmann, A.; Adner, D.; Blaudeck, T.; Hermann, S.; Schulz, S.E.; Lang, H.

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Université de Bordeaux; Centre National de la Recherche Scientifique -CNRS-, Paris:
ChemOnTubes 2018, International Meeting on the Chemistry of Graphene and Carbon Nanotubes : April 22 - 26, 2018, Biarritz, France
Biarritz, 2018
International Meeting on the Chemistry of Graphene and Carbon Nanotubes (ChemOnTubes) <2018, Biarritz>
Abstract, Elektronische Publikation
Fraunhofer ENAS ()

Metal nanoparticles attached to carbon-based nanostructured materials enable new nanoelectronic solutions for energy storage (e.g. fuel cells, supercapacitors) [1] and for chemical, biochemical [1,2,4] and optical sensors [2,3,4]. A requirement for electronic sensors is the design of a versatile nanoelectronic transducer. In the ideal case, such a component can be functionalized with nanoscopic building blocks in a modular way that allows selective response and tuning of the sensitivity of the device. Nanoelectronic field-effect transistors (FETs) using individualized single-walled carbon nanotubes (SWCNTs) have been proposed as FET channel material [5,6].
Recently, we presented a scalable on-chip functionalization approach for SWCNTs between palladium electrodes in the geometry of a field-effect transistor with preformed gold nanoparticles based on the Hirsch-functionalization of SWCNTs (Fig. 1) [5]. This method is wafer-level compatible and comprises two stages of flow chemistry (Fig. 2). In a new chemical approach, we propose the deposition of dispersed SWCNTs by using alkylthioate functionalized pyrene which allows selective attachment of noble metal nanoparticles (Fig. 3). The concept for this type of FET channel is shown in the schematic representation (Fig. 4).