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RESEARCH PRODUCT

Charge transfer interactions in self-assembled single walled carbon nanotubes/Dawson–Wells polyoxometalate hybrids

Eugenio CoronadoConcha Bosch-navarroSergio I. MolinaCarlos Marti-gastaldoKonstantin DirianBenjamin MattDirk M. GuldiAndrés M. RayaGuillaume IzzetAnna ProustCarlos Romero-nieto

subject

Thermogravimetric analysisMaterials scienceContext (language use)Nanotechnology-02 engineering and technologyCarbon nanotube010402 general chemistry01 natural scienceslaw.inventionSelf assembledsymbols.namesakelaw[CHIM]Chemical SciencesComputingMilieux_MISCELLANEOUSCharge (physics)General ChemistryNaturwissenschaftliche Fakultät021001 nanoscience & nanotechnology0104 chemical sciencesChemical engineeringExcited stateddc:540Polyoxometalatesymbols0210 nano-technologyRaman spectroscopy

description

We demonstrate the success in self-assembling pyrene-modified Dawson–Wells-type polyoxometalates (POMs) with single walled carbon nanotubes (SWCNTs) by means of π–π interactions. In this context, the immobilization of POMs onto SWCNTs is corroborated by aberration-corrected high-resolution electron microscopy, thermogravimetric analysis, and Raman spectroscopy. From steady-state and time-resolved photophysical techniques we derived evidence for mutual interactions between SWCNTs and POMs in the excited states. The latter are the inception to a charge transfer from the SWCNTs to the POMs. Our results corroborate the suitability of POM–SWCNTs assemblies for photoactive molecular devices.

10.1039/c4sc01335bhttps://hal.archives-ouvertes.fr/hal-01700889