Niklas Wester

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In this paper we show that the electronic properties of ultrathin tetrahedral amorphous carbon (ta-C) films are heavily dependent on their thickness. By using scanning tunnelling spectroscopy, Raman spectroscopy, and conductive atomic force microscopy, it was found that a decrease of ta-C thickness from 30 to 7 nm leads to (i) the narrowing of the band gap;(More)
We hypothesize that by using integrated carbon nanostructures on tetrahedral amorphous carbon (ta-C), it is possible to take the performance and characteristics of these bioelectrodes to a completely new level. The integrated carbon electrodes were realized by combining nanodiamonds (NDs) with ta-C thin films coated on Ti-coated Si-substrates. NDs were(More)
The real time in vivo detection of dopamine and other neurotransmitters in awake behaving animals is a long-standing goal. Carbon nanomaterials have emerged as promising candidates for electrochemical detection of dopamine. Diamond-like carbon films have wide water window, low capacitive background current and high chemical stability. By combining ultrathin(More)
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