Electronic interplay on illuminated aqueous carbon nanohorn-porphyrin ensembles
Article Abstract:
Tetracationic water-soluble porphyrin is immobilized by [pi]-[pi] stacking interactions onto the skeleton of carbon nanohorns (CNH), without disrupting their [pi]-electronic network. Accumulation of the reduced species of methyl viologen is observed by the photoillumination of CNH-H2[P.sup.4+] in the presence of methyl viologen dication and a hole trap, suggesting that the electron migration from the initially formed charge-separated state takes place.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Photoinduced charge separation and charge recombination in [60]fullerene-(benzothiadiazole-triphenylamine) based dyad in polar solvents
Article Abstract:
A study of the photoinduced electron in C60-benzothiadiazole-triphenylamine (BTD-TPA) is presented in polar and nonpolar solvents using time-resolved transient absorption and fluorescence measurements. It is concluded that the BTD-TPA moiety increases the efficiency of the charge separation (CS) process and prolongs the lifetime of the charge recombination (CR) process.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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Synthesis and photoinduced electron transfer processes of rotaxanes bearing [60]fullerene and zinc porphyrin: Effects of interlocked structure and length of axle with porphyrins
Article Abstract:
Three rotaxanes, with axyles with two zinc porphyrins (ZnPs) at both ends penetrating into a necklace pending a C(sub 60) moiety are synthesized with varying interlocked structures and axle lengths. The intra-rotaxane photoinduced electron transfer processes between the spatially positioned C(sub 60) and ZnP in rotaxanes are investigated.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2005
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