Please use this identifier to cite or link to this item:
|Scopus||Web of Science®||Altmetric|
|Title:||Ruthenium Porphyrin Functionalized Single-Walled Carbon Nanotube Arrays: A Step Toward Light Harvesting Antenna and Multibit Information Storage|
|Citation:||Journal of the American Chemical Society, 2008; 130(27):8788-8796|
|Publisher:||Amer Chemical Soc|
|Jingxian Yu, Simon Mathew, Benjamin S. Flavel, Martin R. Johnston and Joe G. Shapter|
|Abstract:||Ruthenium porphyrin functionalized single-walled carbon nanotube arrays have been prepared using coordination of the axial position of the metal ion onto 4-aminopyridine preassembled single-walled carbon nanotubes directly anchored to a silicon(100) surface (SWCNTs-Si). The formation of these ruthenium porphyrin functionalized single-walled carbon nanotube array electrodes (RuTPP-SWCNTs-Si) has been monitored using infrared spectroscopy (IR), differential pulse voltammetry (DPV), atomic force microscopy (AFM), laser desorption time-of-flight mass spectroscopy (LDI-TOF-MS), UV-vis spectroscopy, fluorescence spectroscopy, and cyclic voltammetry. Electrochemical results show two successive one-electron reversible redox waves. The surface concentration of the ruthenium porphyrin molecules is 3.44 x 10 (-8) mol cm (-2). Optical results indicate that the immobilization of ruthenium porphyrin enhances the light absorption of SWCNTs-Si surfaces in the visible light region. Moreover mixed assembly of ferrocene/porphyrin onto carbon nanotube arrays has been achieved by altering the ratio of two redox-active species in the deposition solution. These results suggest the ruthenium porphyrin modified electrodes are excellent candidates for molecular memory devices and light harvesting antennae.|
|Rights:||Copyright © 2008 American Chemical Society|
|Appears in Collections:||Chemistry and Physics publications|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.