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Please use this identifier to cite or link to this item: http://hdl.handle.net/2262/40098

Title: Transparent ultrathin conducting carbon films
Author: BOESE, MARKUS
DUESBERG, GEORG STEFAN
LUTZ, TAREK
KUMAR, SHISHIR
Sponsor: Science Foundation Ireland
Author's Homepage: http://people.tcd.ie/duesberg
http://people.tcd.ie/boesem
http://people.tcd.ie/lutzt
Keywords: Conductive carbon films
transparent films
Chemistry
Issue Date: 2010
Citation: Martin Schreiber, Tarek Lutz, Gareth P. Keeley, Shishir Kumar, Markus Boese, Satheesh Krishnamurthy and Georg S. Duesberg, Transparent ultrathin conducting carbon films, Applied Surface Science, 256, 21, 2010, 6186-6190
Series/Report no.: Applied Surface Science;
256;
21;
Abstract: Ultrathin conductive carbon layers (UCCLs) were created by spin coating resists and subsequently converting them to conductive films by pyrolysis. Homogeneous layers as thin as 3 nm with nearly atomically smooth surfaces could be obtained. Layer characterization was carried out with the help of atomic force microscopy, profilometry, four-point probe measurements, Raman spectroscopy and ultraviolet-visible spectroscopy. The Raman spectra and high-resolution transmission electron microscopy image indicated that a glassy carbon like material was obtained after pyrolysis. The electrical properties of the UCCL could be controlled over a wide range by varying the pyrolysis temperature. Variation in transmittance with conductivity was investigated for applications as transparent conducting films. It was observed that the layers are continuous down to a thickness below 10 nm, with conductivities of 1.6 x 104 S/m, matching the best values observed for pyrolysed carbon films. Further, the chemical stability of the films and their utilization as transparent electrochemical electrodes has been investigated using cyclic voltammetry and electrochemical impedance spectroscopy.
Description: PUBLISHED
URI: http://hdl.handle.net/2262/40098
Related links: http://dx.doi.org/10.1016/j.apsusc.2010.03.138
Appears in Collections:Chemistry (Scholarly Publications)

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