Non-covalent functionalization of single walled carbon nanotubes with Fe-/Co-porphyrin and Co-phthalocyanine for field-effect transistor applications

This work reports the non-covalent functionalization of SWNTs with Fe-porphyrin, Co-porphyrin and Co-phthalocyanine molecules. The functionalized were first characterized using Raman X-ray photoelectron spectroscopies. Observations down to nanoscale resolution also performed by atomic force microscopy, as well scanning transmission electron microscopies. spectroscopic methods evidenced an electronic interaction between metal-centered molecules SWNTs, ensuring robustness functionalization. High microscopy characterizations reveal that porphyrin phthalocyanine are adsorbed on surface SWNTs. electrical show a weak charge transfer those grafted confirming Density functional theory (DFT) supports experimental data helps understanding results selective metal complexes one type semiconducting