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Controlled Doping of Double Walled Carbon Nanotubes and Conducting Polymers in a Composite: An in situ Raman Spectroelectrochemical Study
Martin Kalbáč, Ladislav Kavan, Lothar Dunsch
The interaction of double wall carbon nanotubes (DWCNTs) and the conducting polymer poly(3,4-ethylenedioxythiphene/polystyrenesulfonate (PEDOT/PSS) was studied by in-situ Raman spe…
Strain Assessment in Graphene Through the Raman 2D' Mode
Elena del Corro, Ladislav Kavan, Martin Kalbac +1
Accurate and simple local strain assessment in graphene is one of the crucial tasks in device characterization. Raman spectroscopy is often used for that purpose through monitoring…
Graphene under direct compression: stress effects and interlayer coupling
Elena del Corro, Miriam Pena-Alvarez, Michal Mracko +4
In this work we explore mechanical properties of graphene samples of variable thickness. For this purpose, we coupled a high pressure sapphire anvil cell to a micro-Raman spectrome…
Novel Highly Active Pt/Graphene Catalyst for Cathodes of Cu(II/I)-Mediated Dye-Sensitized Solar Cells
Ladislav Kavan, Hana Krysova, Pavel Janda +6
Novel highly active, optically-transparent electrode catalyst containing Pt, PtOx, graphene oxide and stacked graphene platelet nanofibers is developed for a cathode of Cu(II/I)-me…
Electrochemical Properties of Cu(II/I)-Based Redox Mediators for Dye-Sensitized Solar Cells
Ladislav Kavan, Yasemin Saygili, Marina Freitag +3
Three Cu(II/I)-phenanthroline and Cu(II/I)-bipyridine redox mediators are studied on various electrodes and in variety of electrolyte solutions using cyclic voltammetry and impedan…
Stress and charge transfer in uniaxially strained CVD graphene
Milan Bousa, George Anagnostopoulos, Elena del Corro +8
Mechanical properties of graphene prepared by chemical vapor deposition (CVD) are not easily comparable to the properties of nearly perfect graphene prepared by mechanical cleavage…