Supramolecular nanostructured assemblies of different types of porphyrins with fullerene using TiO2 nanoparticles for light energy conversion

Taku Hasobe; Shigeki Hattori; Prashant V. Kamat; Shunichi Fukuzumi

doi:10.1016/j.tet.2005.05.113

Supramolecular nanostructured assemblies of different types of porphyrins with fullerene using TiO₂ nanoparticles for light energy conversion

Taku Hasobe, Shigeki Hattori, Prashant V. Kamat, Shunichi Fukuzumi

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

TiO₂ nanoparticles were modified with porphyrin derivatives, 5-[4-benzoic acid]-10,15,20-tris[3,5-di-tert-butylphenyl]-21H,23H-porphyrin (Ar-H₂P-COOH), 5-[4-benzoic acid]-10,20-tris[3,5-di-tert-butylphenyl] -21H,23H-porphyrin (H-H₂P-COOH), and 5,10,15,20-tetra[4-benzoic acid]-21H,23H-porphyrin (H₂P-4COOH). The porphyrin-modified TiO ₂ nanoparticles were deposited on nanostructured OTE/SnO₂ electrode together with nanoclusters of fullerene (C₆₀) in acetonitrile-toluene (3/1, v/v) using an electrophoretic deposition technique to afford the porphyrin-modified TiO₂ composite electrode denoted as OTE/SnO₂/(porphyrin-modified TiO₂ nanoparticle+C ₆₀)_n. The porphyrin-modified TiO₂ composite electrodes have efficient light absorbing properties in the visible region, exhibiting the photoactive response under visible light excitation using I ₃^-/I^- redox couple. The incident photon-to-photocurrent efficiency (IPCE) values of supramolecular nanostructured electrodes of porphyrin-modified TiO₂ nanoparticles with fullerene [OTE/SnO₂/(Ar-H₂P-COO-TiO₂+C₆₀) _n, OTE/SnO₂/(H-H₂P-COO-TiO₂+C ₆₀)_n, and OTE/SnO₂/(H₂P-4COO- TiO₂+C₆₀)_n] are much larger than those of the reference systems of porphyrin-modified TiO₂ nanoparticles without C₆₀ [OTE/SnO₂/(Ar-H₂P-COO-TiO₂) _n, OTE/SnO₂/(H-H₂P-COO-TiO₂) _n, and OTE/SnO₂/(H₂P-4COO-TiO₂) _n]. In particular, the maximum IPCE value (41%) is obtained for OTE/SnO₂/(H-H₂P-COO-TiO₂+C₆₀) _n under the bias potential of 0.2 V versus SCE. This indicates that the formation of supramolecular complexes between porphyrins and fullerene on TiO₂ nanoparticles plays an important role in improvement of the light energy conversion properties.

Original language	English
Pages (from-to)	1937-1946
Number of pages	10
Journal	Tetrahedron
Volume	62
Issue number	9
DOIs	https://doi.org/10.1016/j.tet.2005.05.113
State	Published - 27 Feb 2006

Bibliographical note

Funding Information:
This work was partially supported by a Grant-in-Aid (No. 16205020) and by a COE program of Osaka University (Integrated Ecochemistry) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan. PVK acknowledges the support from the Office of Basic Energy Science of the US Department of the Energy. TH acknowledges the support of Japan Society for the Promotion of Science Research Fellowship for Young Scientist. This is contribution no. NDRL 4605 from the Notre Dame Radiation Laboratory and from Osaka University. We are grateful to Dr. Yuji Wada, Osaka University, for helping preparation of TiO 2 nanoparticles modified with dyes.

Keywords

Fullerene
Light energy coversion
Porphyrin
TiO nanoparticle

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10.1016/j.tet.2005.05.113

Cite this

@article{4d947365933c49e78e67c4362671469f,

title = "Supramolecular nanostructured assemblies of different types of porphyrins with fullerene using TiO2 nanoparticles for light energy conversion",

abstract = "TiO2 nanoparticles were modified with porphyrin derivatives, 5-[4-benzoic acid]-10,15,20-tris[3,5-di-tert-butylphenyl]-21H,23H-porphyrin (Ar-H2P-COOH), 5-[4-benzoic acid]-10,20-tris[3,5-di-tert-butylphenyl] -21H,23H-porphyrin (H-H2P-COOH), and 5,10,15,20-tetra[4-benzoic acid]-21H,23H-porphyrin (H2P-4COOH). The porphyrin-modified TiO 2 nanoparticles were deposited on nanostructured OTE/SnO2 electrode together with nanoclusters of fullerene (C60) in acetonitrile-toluene (3/1, v/v) using an electrophoretic deposition technique to afford the porphyrin-modified TiO2 composite electrode denoted as OTE/SnO2/(porphyrin-modified TiO2 nanoparticle+C 60)n. The porphyrin-modified TiO2 composite electrodes have efficient light absorbing properties in the visible region, exhibiting the photoactive response under visible light excitation using I 3-/I- redox couple. The incident photon-to-photocurrent efficiency (IPCE) values of supramolecular nanostructured electrodes of porphyrin-modified TiO2 nanoparticles with fullerene [OTE/SnO2/(Ar-H2P-COO-TiO2+C60) n, OTE/SnO2/(H-H2P-COO-TiO2+C 60)n, and OTE/SnO2/(H2P-4COO- TiO2+C60)n] are much larger than those of the reference systems of porphyrin-modified TiO2 nanoparticles without C60 [OTE/SnO2/(Ar-H2P-COO-TiO2) n, OTE/SnO2/(H-H2P-COO-TiO2) n, and OTE/SnO2/(H2P-4COO-TiO2) n]. In particular, the maximum IPCE value (41%) is obtained for OTE/SnO2/(H-H2P-COO-TiO2+C60) n under the bias potential of 0.2 V versus SCE. This indicates that the formation of supramolecular complexes between porphyrins and fullerene on TiO2 nanoparticles plays an important role in improvement of the light energy conversion properties.",

keywords = "Fullerene, Light energy coversion, Porphyrin, TiO nanoparticle",

author = "Taku Hasobe and Shigeki Hattori and Kamat, {Prashant V.} and Shunichi Fukuzumi",

note = "Funding Information: This work was partially supported by a Grant-in-Aid (No. 16205020) and by a COE program of Osaka University (Integrated Ecochemistry) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan. PVK acknowledges the support from the Office of Basic Energy Science of the US Department of the Energy. TH acknowledges the support of Japan Society for the Promotion of Science Research Fellowship for Young Scientist. This is contribution no. NDRL 4605 from the Notre Dame Radiation Laboratory and from Osaka University. We are grateful to Dr. Yuji Wada, Osaka University, for helping preparation of TiO 2 nanoparticles modified with dyes. ",

year = "2006",

month = feb,

day = "27",

doi = "10.1016/j.tet.2005.05.113",

language = "English",

volume = "62",

pages = "1937--1946",

journal = "Tetrahedron",

issn = "0040-4020",

publisher = "Elsevier Ltd.",

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TY - JOUR

T1 - Supramolecular nanostructured assemblies of different types of porphyrins with fullerene using TiO2 nanoparticles for light energy conversion

AU - Hasobe, Taku

AU - Hattori, Shigeki

AU - Kamat, Prashant V.

AU - Fukuzumi, Shunichi

N1 - Funding Information: This work was partially supported by a Grant-in-Aid (No. 16205020) and by a COE program of Osaka University (Integrated Ecochemistry) from the Ministry of Education, Culture, Sports, Science, and Technology, Japan. PVK acknowledges the support from the Office of Basic Energy Science of the US Department of the Energy. TH acknowledges the support of Japan Society for the Promotion of Science Research Fellowship for Young Scientist. This is contribution no. NDRL 4605 from the Notre Dame Radiation Laboratory and from Osaka University. We are grateful to Dr. Yuji Wada, Osaka University, for helping preparation of TiO 2 nanoparticles modified with dyes.

PY - 2006/2/27

Y1 - 2006/2/27

N2 - TiO2 nanoparticles were modified with porphyrin derivatives, 5-[4-benzoic acid]-10,15,20-tris[3,5-di-tert-butylphenyl]-21H,23H-porphyrin (Ar-H2P-COOH), 5-[4-benzoic acid]-10,20-tris[3,5-di-tert-butylphenyl] -21H,23H-porphyrin (H-H2P-COOH), and 5,10,15,20-tetra[4-benzoic acid]-21H,23H-porphyrin (H2P-4COOH). The porphyrin-modified TiO 2 nanoparticles were deposited on nanostructured OTE/SnO2 electrode together with nanoclusters of fullerene (C60) in acetonitrile-toluene (3/1, v/v) using an electrophoretic deposition technique to afford the porphyrin-modified TiO2 composite electrode denoted as OTE/SnO2/(porphyrin-modified TiO2 nanoparticle+C 60)n. The porphyrin-modified TiO2 composite electrodes have efficient light absorbing properties in the visible region, exhibiting the photoactive response under visible light excitation using I 3-/I- redox couple. The incident photon-to-photocurrent efficiency (IPCE) values of supramolecular nanostructured electrodes of porphyrin-modified TiO2 nanoparticles with fullerene [OTE/SnO2/(Ar-H2P-COO-TiO2+C60) n, OTE/SnO2/(H-H2P-COO-TiO2+C 60)n, and OTE/SnO2/(H2P-4COO- TiO2+C60)n] are much larger than those of the reference systems of porphyrin-modified TiO2 nanoparticles without C60 [OTE/SnO2/(Ar-H2P-COO-TiO2) n, OTE/SnO2/(H-H2P-COO-TiO2) n, and OTE/SnO2/(H2P-4COO-TiO2) n]. In particular, the maximum IPCE value (41%) is obtained for OTE/SnO2/(H-H2P-COO-TiO2+C60) n under the bias potential of 0.2 V versus SCE. This indicates that the formation of supramolecular complexes between porphyrins and fullerene on TiO2 nanoparticles plays an important role in improvement of the light energy conversion properties.

AB - TiO2 nanoparticles were modified with porphyrin derivatives, 5-[4-benzoic acid]-10,15,20-tris[3,5-di-tert-butylphenyl]-21H,23H-porphyrin (Ar-H2P-COOH), 5-[4-benzoic acid]-10,20-tris[3,5-di-tert-butylphenyl] -21H,23H-porphyrin (H-H2P-COOH), and 5,10,15,20-tetra[4-benzoic acid]-21H,23H-porphyrin (H2P-4COOH). The porphyrin-modified TiO 2 nanoparticles were deposited on nanostructured OTE/SnO2 electrode together with nanoclusters of fullerene (C60) in acetonitrile-toluene (3/1, v/v) using an electrophoretic deposition technique to afford the porphyrin-modified TiO2 composite electrode denoted as OTE/SnO2/(porphyrin-modified TiO2 nanoparticle+C 60)n. The porphyrin-modified TiO2 composite electrodes have efficient light absorbing properties in the visible region, exhibiting the photoactive response under visible light excitation using I 3-/I- redox couple. The incident photon-to-photocurrent efficiency (IPCE) values of supramolecular nanostructured electrodes of porphyrin-modified TiO2 nanoparticles with fullerene [OTE/SnO2/(Ar-H2P-COO-TiO2+C60) n, OTE/SnO2/(H-H2P-COO-TiO2+C 60)n, and OTE/SnO2/(H2P-4COO- TiO2+C60)n] are much larger than those of the reference systems of porphyrin-modified TiO2 nanoparticles without C60 [OTE/SnO2/(Ar-H2P-COO-TiO2) n, OTE/SnO2/(H-H2P-COO-TiO2) n, and OTE/SnO2/(H2P-4COO-TiO2) n]. In particular, the maximum IPCE value (41%) is obtained for OTE/SnO2/(H-H2P-COO-TiO2+C60) n under the bias potential of 0.2 V versus SCE. This indicates that the formation of supramolecular complexes between porphyrins and fullerene on TiO2 nanoparticles plays an important role in improvement of the light energy conversion properties.

KW - Fullerene

KW - Light energy coversion

KW - Porphyrin

KW - TiO nanoparticle

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DO - 10.1016/j.tet.2005.05.113

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SP - 1937

EP - 1946

JO - Tetrahedron

JF - Tetrahedron

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