Photosensitive Field‐Effect Transistors Made from Semiconducting Carbon Nanotubes and Non‐Covalently Attached Gold Nanoparticles. Issue 19 (23rd April 2019)

• Record Type: Journal Article
• Authors: Blaudeck, Thomas; Preuß, Andrea; Scharf, Sebastian; Notz, Sebastian; Kossmann, Alexander; Hartmann, Susanne; Kasper, Laura; Mendes, Rafael G.; Gemming, Thomas; Hermann, Sascha; Lang, Heinrich; Schulz, Stefan E.
• Other Names: Zahn Dietrich R.T. guestEditor.; Schulz Stefan E. guestEditor.; Hiller Karla guestEditor.; Wagner Christian guestEditor.; Reuter Danny guestEditor.; Otto Thomas guestEditor.
• Is Part Of: Physica status solidi. Volume 216:Issue 19(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-04-23
• Subjects: carbon nanotubes -- field‐effect transistor -- flow chemistry -- micro‐nano integration -- nanoelectronics -- optoplasmonics; Solid state physics -- Periodicals; Solids -- Industrial applications -- Periodicals; 530.41
• DOI: 10.1002/pssa.201900030
• Languages: English
• ISSNs: 1862-6300

Abstract

Abstract : The authors propose an on‐chip microfluidic flow chemistry for non‐covalent functionalization of single‐walled carbon nanotubes (SWCNTs) as channel material in nanoelectronic carbon‐nanotube field‐effect transistors (CNT‐FETs) specifically aiming for personalized optoplasmonic sensor solutions. Applying pyrene alkanethiol derivatives, dissolved in chloroform, and a dispersion of gold nanoparticles in triglyme, the authors conduct the proof‐of‐principle to fabricate arrays of photosensitive CNT‐FETs using flow chemistry on wafer‐compatible hardware. The spectral photoresponse of the obtained sensor devices appears clear and reproducible and can be related to the surface plasmon polaritons of the gold nanoparticles. The sensor devices yield photometric responsivities of RA ≈ 8 × 10 −3 AW −1 and response times of t 0 ≈ 9 s. The results extend a previously reported approach for covalent functionalization (Blaudeck et al., Microelectron. Eng .2015, 137, 135) and show the potential of flow chemistry combined with wafer‐level microfabrication for selectively functionalized nanostructured sensor arrays. Abstract : Carbon‐nanotube field‐effect transistors (CNT‐FETs) are non‐covalently functionalized to achieve arrays of optoplasmonic sensors. The on‐chip method comprises flow chemistry with solutions of pyrene alkanethiol derivatives and dispersions of gold nanoparticles. CNT‐FETs keep their properties and show a clear and reproducible optoelectronic response. The pyrene alkanethiol derivatives show even support of the disentanglement of SWCNT solid material in organic solvents.