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Meso-meso linked diporphyrin functionalized single-walled carbon nanotubes

Paper ID Volume ID Publish Year Pages File Format Full-Text
28852 44097 2010 9 PDF Available
Title
Meso-meso linked diporphyrin functionalized single-walled carbon nanotubes
Abstract

Meso-meso linked diporphyrins ([H2Por]2) covalently functionalized soluble single-walled carbon nanotubes ([H2Por]2-SWNTs) have been successfully prepared. As a light-harvesting chromophore, meso-meso linked diporphyrins have been incorporated into a photosynthetic electron-transfer model with SWNTs as an electron-acceptor. The steady emission characteristics revealed the existence of the effective energy and electron transfer between the excited porphyrin moiety and SWNTs, and the electron transfer process was confirmed by electrochemical study. The charge separation quenching process was supported by the results of time-resolved transient absorption spectra, and the lifetime of charge-separation state was observed to be 145 ns, which was 2.5 times of that of monoporphyrin modified SWNTs (TPP-SWNTs).

Keywords
Meso-meso linked diporphyrin; Single-walled carbon nanotube; Charge separate; Photoinduced electron transfer
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 216, Issue 1, 15 November 2010, Pages 15–23
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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