Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 46: Poster Session IV

CPP 46.25: Poster

Mittwoch, 14. März 2018, 11:00–13:00, Poster A

Flexible all-carbon solution-gated FETs for pH sensing — •Daniel Hüger¹, David Kaiser¹, Christof Neumann¹, Ugo Sassi², Matteo Bruna², Maria Küllmer¹, and Andrey Turchanin¹ — ¹Institute for Physical Chemistry, Friedrich Schiller University Jena, 07743 Jena, Germany — ²Nokia Bell Labs, Cambridge CB3 0FA, UK

Flexible electronics have shown extensive applications in the areas of biology, chemistry, and medicine. We employ single-layer graphene (SLG) grown by methane Chemical Vapor Deposition on Cu foils transferred on PEN substrates and amino-terminated 1 nm thick carbon nanomembranes (CNMs) generated by electron-beam induced crosslinking of aromatic self-assembled monolayers to engineer hybrid NH₂-CNM/SLG field effect transistors. Passivation of the electrodes for the operation of the devices in liquid is realized by self-assembly of hexadecanethiol on the Au contacts. We present the results achieved with these van der Waals heterostructure devices in solution-gated field effect transistors for pH-sensing and compare their performance to that of devices realized on standard SiO₂/Si substrates.