Adsorption of merocyanine dye on rutile TiO2(1 1 0)

A. Y. Matsuura; T. Obayashi; H. Kondoh; T. Ohta; H. Oji; N. Kosugi; K. Sayama; H. Arakawa

doi:10.1016/S0009-2614(02)00825-4

Adsorption of merocyanine dye on rutile TiO₂(1 1 0)

A. Y. Matsuura, T. Obayashi, H. Kondoh, T. Ohta, H. Oji, N. Kosugi, K. Sayama, H. Arakawa

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

17 Citations (Scopus)

Abstract

Merocyanine dyes that contain a carboxyl group and alkyl chain, like 3-carboxymethyl-5-[2-(3-alkyl-2-benzothiazol inyldene) ethylidene]- 2- thioxo- 4- thiazolidinone, enhance the efficiency of TiO₂ solar cells. Knowledge of the bonding of this dye molecule to the rutile TiO₂ surface will increase the understanding of the dye-semiconductor electron transfer responsible for the enhanced efficiency. Near-edge X-ray absorption fine structure spectroscopy (NEXAFS) measurements and an ab initio core-excited state molecular orbital calculation for the merocyanine dye were performed. From these results, it was found that the main molecular plane forms a 47° angle with the surface normal, and the carboxyl group that bonds to the TiO₂ surface is in alignment with the surface normal. STM experiments show that the dye molecules form aggregates on the TiO₂ surface.

Original language	English
Pages (from-to)	133-138
Number of pages	6
Journal	Chemical Physics Letters
Volume	360
Issue number	1-2
DOIs	https://doi.org/10.1016/S0009-2614(02)00825-4
Publication status	Published - 2002 Jul 3
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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10.1016/S0009-2614(02)00825-4

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title = "Adsorption of merocyanine dye on rutile TiO2(1 1 0)",

abstract = "Merocyanine dyes that contain a carboxyl group and alkyl chain, like 3-carboxymethyl-5-[2-(3-alkyl-2-benzothiazol inyldene) ethylidene]- 2- thioxo- 4- thiazolidinone, enhance the efficiency of TiO2 solar cells. Knowledge of the bonding of this dye molecule to the rutile TiO2 surface will increase the understanding of the dye-semiconductor electron transfer responsible for the enhanced efficiency. Near-edge X-ray absorption fine structure spectroscopy (NEXAFS) measurements and an ab initio core-excited state molecular orbital calculation for the merocyanine dye were performed. From these results, it was found that the main molecular plane forms a 47° angle with the surface normal, and the carboxyl group that bonds to the TiO2 surface is in alignment with the surface normal. STM experiments show that the dye molecules form aggregates on the TiO2 surface.",

author = "Matsuura, {A. Y.} and T. Obayashi and H. Kondoh and T. Ohta and H. Oji and N. Kosugi and K. Sayama and H. Arakawa",

note = "Funding Information: This work was supported by the Japan Society for the Promotion of Science and performed under the approval of PF-PAC (No. 99G078). ",

year = "2002",

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doi = "10.1016/S0009-2614(02)00825-4",

language = "English",

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T1 - Adsorption of merocyanine dye on rutile TiO2(1 1 0)

AU - Matsuura, A. Y.

AU - Obayashi, T.

AU - Kondoh, H.

AU - Ohta, T.

AU - Oji, H.

AU - Kosugi, N.

AU - Sayama, K.

AU - Arakawa, H.

N1 - Funding Information: This work was supported by the Japan Society for the Promotion of Science and performed under the approval of PF-PAC (No. 99G078).

PY - 2002/7/3

Y1 - 2002/7/3

N2 - Merocyanine dyes that contain a carboxyl group and alkyl chain, like 3-carboxymethyl-5-[2-(3-alkyl-2-benzothiazol inyldene) ethylidene]- 2- thioxo- 4- thiazolidinone, enhance the efficiency of TiO2 solar cells. Knowledge of the bonding of this dye molecule to the rutile TiO2 surface will increase the understanding of the dye-semiconductor electron transfer responsible for the enhanced efficiency. Near-edge X-ray absorption fine structure spectroscopy (NEXAFS) measurements and an ab initio core-excited state molecular orbital calculation for the merocyanine dye were performed. From these results, it was found that the main molecular plane forms a 47° angle with the surface normal, and the carboxyl group that bonds to the TiO2 surface is in alignment with the surface normal. STM experiments show that the dye molecules form aggregates on the TiO2 surface.

AB - Merocyanine dyes that contain a carboxyl group and alkyl chain, like 3-carboxymethyl-5-[2-(3-alkyl-2-benzothiazol inyldene) ethylidene]- 2- thioxo- 4- thiazolidinone, enhance the efficiency of TiO2 solar cells. Knowledge of the bonding of this dye molecule to the rutile TiO2 surface will increase the understanding of the dye-semiconductor electron transfer responsible for the enhanced efficiency. Near-edge X-ray absorption fine structure spectroscopy (NEXAFS) measurements and an ab initio core-excited state molecular orbital calculation for the merocyanine dye were performed. From these results, it was found that the main molecular plane forms a 47° angle with the surface normal, and the carboxyl group that bonds to the TiO2 surface is in alignment with the surface normal. STM experiments show that the dye molecules form aggregates on the TiO2 surface.

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JO - Chemical Physics Letters

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ER -

Adsorption of merocyanine dye on rutile TiO₂(1 1 0)

Abstract

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