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 | |
| Publication status | Published - 2003 Mar 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Materials Science(all)
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Enhancement of light harvesting and photocurrent generation by ITO electrodes modified with meso,meso-linked porphyrin oligomers. / Hasobe, Taku; Imahori, Hiroshi; Yamada, Hiroko; Sato, Tomoo; Ohkubo, Kei; Fukuzumi, Shunichi.
In: Nano Letters, Vol. 3, No. 3, 01.03.2003, p. 409-412.Research output: Contribution to journal › Article
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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.
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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 -