Enhancement of light harvesting and photocurrent generation by ITO electrodes modified with meso,meso-linked porphyrin oligomers

Taku Hasobe; Hiroshi Imahori; Hiroko Yamada; Tomoo Sato; Kei Ohkubo; Shunichi Fukuzumi

doi:10.1021/nl025974z

Enhancement of light harvesting and photocurrent generation by ITO electrodes modified with meso,meso-linked porphyrin oligomers

Taku Hasobe, Hiroshi Imahori, Hiroko Yamada, Tomoo Sato, Kei Ohkubo, Shunichi Fukuzumi

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

57 Citations (Scopus)

Abstract

ITO electrodes modified with a meso,meso-linked porphyrin oligomer have been prepared for the first time to achieve improved light-harvesting efficiency and a larger quantum yield for photocurrent generation as compared to the corresponding porphyrin monomer system. An increase in the number of the porphyrins in meso,meso-linked porphyrins results in an improvement of the photoenergy conversion efficiency per mol cm^-2 in the visible light region as well as a larger quantum yield of photocurrent generation. The relative integrated values of the photocurrents for all of the frequencies in the action spectrum per mol cm^-2 in the porphyrin dimer and tetramer systems are determined to be 2.5 and 6.5, respectively, as compared with the values of the porphyrin monomer system.

Original language	English
Pages (from-to)	409-412
Number of pages	4
Journal	Nano Letters
Volume	3
Issue number	3
DOIs	https://doi.org/10.1021/nl025974z
Publication status	Published - 2003 Mar 1
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1021/nl025974z

Fingerprint Dive into the research topics of 'Enhancement of light harvesting and photocurrent generation by ITO electrodes modified with meso,meso-linked porphyrin oligomers'. Together they form a unique fingerprint.

Cite this

@article{da8e6c283f9443e48648b31b863398af,

title = "Enhancement of light harvesting and photocurrent generation by ITO electrodes modified with meso,meso-linked porphyrin oligomers",

abstract = "ITO electrodes modified with a meso,meso-linked porphyrin oligomer have been prepared for the first time to achieve improved light-harvesting efficiency and a larger quantum yield for photocurrent generation as compared to the corresponding porphyrin monomer system. An increase in the number of the porphyrins in meso,meso-linked porphyrins results in an improvement of the photoenergy conversion efficiency per mol cm-2 in the visible light region as well as a larger quantum yield of photocurrent generation. The relative integrated values of the photocurrents for all of the frequencies in the action spectrum per mol cm-2 in the porphyrin dimer and tetramer systems are determined to be 2.5 and 6.5, respectively, as compared with the values of the porphyrin monomer system.",

author = "Taku Hasobe and Hiroshi Imahori and Hiroko Yamada and Tomoo Sato and Kei Ohkubo and Shunichi Fukuzumi",

year = "2003",

month = mar,

day = "1",

doi = "10.1021/nl025974z",

language = "English",

volume = "3",

pages = "409--412",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "3",

}

TY - JOUR

T1 - Enhancement of light harvesting and photocurrent generation by ITO electrodes modified with meso,meso-linked porphyrin oligomers

AU - Hasobe, Taku

AU - Imahori, Hiroshi

AU - Yamada, Hiroko

AU - Sato, Tomoo

AU - Ohkubo, Kei

AU - Fukuzumi, Shunichi

PY - 2003/3/1

Y1 - 2003/3/1

N2 - ITO electrodes modified with a meso,meso-linked porphyrin oligomer have been prepared for the first time to achieve improved light-harvesting efficiency and a larger quantum yield for photocurrent generation as compared to the corresponding porphyrin monomer system. An increase in the number of the porphyrins in meso,meso-linked porphyrins results in an improvement of the photoenergy conversion efficiency per mol cm-2 in the visible light region as well as a larger quantum yield of photocurrent generation. The relative integrated values of the photocurrents for all of the frequencies in the action spectrum per mol cm-2 in the porphyrin dimer and tetramer systems are determined to be 2.5 and 6.5, respectively, as compared with the values of the porphyrin monomer system.

AB - ITO electrodes modified with a meso,meso-linked porphyrin oligomer have been prepared for the first time to achieve improved light-harvesting efficiency and a larger quantum yield for photocurrent generation as compared to the corresponding porphyrin monomer system. An increase in the number of the porphyrins in meso,meso-linked porphyrins results in an improvement of the photoenergy conversion efficiency per mol cm-2 in the visible light region as well as a larger quantum yield of photocurrent generation. The relative integrated values of the photocurrents for all of the frequencies in the action spectrum per mol cm-2 in the porphyrin dimer and tetramer systems are determined to be 2.5 and 6.5, respectively, as compared with the values of the porphyrin monomer system.

UR - http://www.scopus.com/inward/record.url?scp=0042874422&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0042874422&partnerID=8YFLogxK

U2 - 10.1021/nl025974z

DO - 10.1021/nl025974z

M3 - Article

AN - SCOPUS:0042874422

VL - 3

SP - 409

EP - 412

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 3

ER -