Abstract
A dihydroxotin(IV) porphyrin functionalized single-walled carbon nanotubes (SWNTs) nanohybrid is obtained. Solubility of the nanohybrid in organic solvents is determined by UV-Vis-NIR absorption spectroscopy. Electron absorption and fluorescence spectra investigations demonstrate that efficient electron transfer occurs within the nanohybrid at the photoexcited state and the charge-separated state of the nanohybrid is observed by transient absorption spectrum. The results illustrate that this soluble electron donor-acceptor nanohybrid might be a good candidate as a light harvesting material in molecular photoelectronic devices.
Highlights
The novel and unique electronic properties exhibited by SWNTs make them excellent candidates for applications in the area of optoelectronics and photovoltaic devices [1]
Nanotube bundles exfoliate to thin bundles and black nanoparticals are observed to be coated on the surfaces of nanotubes (Figure 1b), which are similar to the functionalized SWNTs materials previously reported in the literature [7,8]
A soluble SWNTs-based donor-acceptor nanohybrid is obtained by covalently functionalized SWNTs with dihydroxotin(IV) porphyrins and this nanohybrid is studied with transmission electron micrograph (TEM), FTIR, Raman, NMR and UV-Vis-NIR spectra
Summary
The novel and unique electronic properties exhibited by SWNTs make them excellent candidates for applications in the area of optoelectronics and photovoltaic devices [1]. The presence of extended, delocalized πelectron systems makes this carbon material very useful for managing charge transfer when carbon nanotubes are combined with electron donors, such as porphyrin [2] and phthalocyanine [3]. These arrangements might be used to construct photovoltaic cells [4]. The electron transfer and the light harvesting features of the SWNT-SnDPP nanohybrid suggest that this novel soluble nanohybrid presents a potential candidate for nanoscale photoelectronic and photovoltaic devices. Schematic view of the Sn(IV) porphyrin (1) functionalized SWNTs
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