Enhancement of light-energy conversion efficiency by multi-porphyrin arrays of porphyrin-peptide oligomers with fullerene clusters

Taku Hasobe; Prashant V. Kamat; Vincent Troiani; Nathalie Solladié; Tae Kyu Ahn; Seong Keun Kim; Dongho Kim; Anusorn Kongkanand; Susumu Kuwabata; Shunichi Fukuzumi

doi:10.1021/jp045246v

Enhancement of light-energy conversion efficiency by multi-porphyrin arrays of porphyrin-peptide oligomers with fullerene clusters

Taku Hasobe
, Prashant V. Kamat
, Vincent Troiani
, Nathalie Solladié
, Tae Kyu Ahn
, Seong Keun Kim
, Dongho Kim
, Anusorn Kongkanand
, Susumu Kuwabata
, Shunichi Fukuzumi

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

159 Scopus citations

Abstract

Organic photovoltaic cells using supramolecular complexes of porphyrin-peptide oligomers (porphyrin-functionalized α-polypeptides) with fullerene demonstrate remarkable enhancement in the photoelectrochemical performance as well as broader photoresponse in the visible and near-infrared regions by increasing the number of porphyrin units in α-polypeptide structures. A high power conversion efficiency (η) of 1.3% and a maximum incident photon-to-photocurrent efficiency (IPCE) of 42% were attained using composite clusters of porphyrin-peptide octamer and fullerene. These results clearly show that the formation of a molecular assembly between fullerene and multi-porphyrin arrays with a polypeptide backbone controls the electron transfer efficiency in the supramolecular complex, which is essential for the light-energy conversion.

Original language	English
Pages (from-to)	19-23
Number of pages	5
Journal	Journal of Physical Chemistry B
Volume	109
Issue number	1
DOIs	https://doi.org/10.1021/jp045246v
State	Published - 13 Jan 2005
Externally published	Yes

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10.1021/jp045246v

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title = "Enhancement of light-energy conversion efficiency by multi-porphyrin arrays of porphyrin-peptide oligomers with fullerene clusters",

abstract = "Organic photovoltaic cells using supramolecular complexes of porphyrin-peptide oligomers (porphyrin-functionalized α-polypeptides) with fullerene demonstrate remarkable enhancement in the photoelectrochemical performance as well as broader photoresponse in the visible and near-infrared regions by increasing the number of porphyrin units in α-polypeptide structures. A high power conversion efficiency (η) of 1.3\% and a maximum incident photon-to-photocurrent efficiency (IPCE) of 42\% were attained using composite clusters of porphyrin-peptide octamer and fullerene. These results clearly show that the formation of a molecular assembly between fullerene and multi-porphyrin arrays with a polypeptide backbone controls the electron transfer efficiency in the supramolecular complex, which is essential for the light-energy conversion.",

author = "Taku Hasobe and Kamat, \{Prashant V.\} and Vincent Troiani and Nathalie Solladi{\'e} and Ahn, \{Tae Kyu\} and Kim, \{Seong Keun\} and Dongho Kim and Anusorn Kongkanand and Susumu Kuwabata and Shunichi Fukuzumi",

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doi = "10.1021/jp045246v",

language = "English",

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TY - JOUR

T1 - Enhancement of light-energy conversion efficiency by multi-porphyrin arrays of porphyrin-peptide oligomers with fullerene clusters

AU - Hasobe, Taku

AU - Kamat, Prashant V.

AU - Troiani, Vincent

AU - Solladié, Nathalie

AU - Ahn, Tae Kyu

AU - Kim, Seong Keun

AU - Kim, Dongho

AU - Kongkanand, Anusorn

AU - Kuwabata, Susumu

AU - Fukuzumi, Shunichi

PY - 2005/1/13

Y1 - 2005/1/13

N2 - Organic photovoltaic cells using supramolecular complexes of porphyrin-peptide oligomers (porphyrin-functionalized α-polypeptides) with fullerene demonstrate remarkable enhancement in the photoelectrochemical performance as well as broader photoresponse in the visible and near-infrared regions by increasing the number of porphyrin units in α-polypeptide structures. A high power conversion efficiency (η) of 1.3% and a maximum incident photon-to-photocurrent efficiency (IPCE) of 42% were attained using composite clusters of porphyrin-peptide octamer and fullerene. These results clearly show that the formation of a molecular assembly between fullerene and multi-porphyrin arrays with a polypeptide backbone controls the electron transfer efficiency in the supramolecular complex, which is essential for the light-energy conversion.

AB - Organic photovoltaic cells using supramolecular complexes of porphyrin-peptide oligomers (porphyrin-functionalized α-polypeptides) with fullerene demonstrate remarkable enhancement in the photoelectrochemical performance as well as broader photoresponse in the visible and near-infrared regions by increasing the number of porphyrin units in α-polypeptide structures. A high power conversion efficiency (η) of 1.3% and a maximum incident photon-to-photocurrent efficiency (IPCE) of 42% were attained using composite clusters of porphyrin-peptide octamer and fullerene. These results clearly show that the formation of a molecular assembly between fullerene and multi-porphyrin arrays with a polypeptide backbone controls the electron transfer efficiency in the supramolecular complex, which is essential for the light-energy conversion.

UR - https://www.scopus.com/pages/publications/19944427710

U2 - 10.1021/jp045246v

DO - 10.1021/jp045246v

M3 - Article

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AN - SCOPUS:19944427710

SN - 1520-6106

VL - 109

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JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 1

ER -

Enhancement of light-energy conversion efficiency by multi-porphyrin arrays of porphyrin-peptide oligomers with fullerene clusters

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