Thermal behavior of a Langmuir-Blodgett film of dioctadecyldimethylammonium-Au(dmit)2 salt investigated by infrared spectroscopy

Shin Ichi Morita; Akifumi Ikehata; Yasuhiro F. Miura; Michio Sugi; Yukihiro Ozaki

doi:10.1016/j.tsf.2004.06.019

Thermal behavior of a Langmuir-Blodgett film of dioctadecyldimethylammonium-Au(dmit)₂ salt investigated by infrared spectroscopy

Shin Ichi Morita, Akifumi Ikehata, Yasuhiro F. Miura, Michio Sugi, Yukihiro Ozaki

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

3 Citations (Scopus)

Abstract

Thermal behavior of a Langmuir-Blodgett (LB) film of dioctadecyldimethylammonium-Au(dmit)₂ (2C₁₈-Au(dmit) ₂) salt has been studied by means of infrared transmission spectroscopy. Two bands due to the CH₂ antisymmetric and symmetric stretching modes have been used to monitor the orientation of the hydrocarbon chain in the 2C₁₈-Au(dmit)₂ LB film, and the absorption band due to the C=S stretching mode has been employed to investigate the aggregation state of Au(dmit)₂ chromophores. Temperature-dependent infrared spectral changes have revealed that there are, at least, two different ordered states in the LB film below the order-disorder transition between 100 and 110 °C. The above results are important, showing that the heat treatment can be a powerful and versatile tool to control the structure of the 2C ₁₈-Au(dmit)₂ LB film.

Original language	English
Pages (from-to)	408-411
Number of pages	4
Journal	Thin Solid Films
Volume	464-465
DOIs	https://doi.org/10.1016/j.tsf.2004.06.019
Publication status	Published - 2004 Oct
Externally published	Yes

Keywords

Au(dmit) chromophore
Hydrocarbon chain
Infrared spectroscopy
LB film
Thermal behavior

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.tsf.2004.06.019

Cite this

@article{5227379b90e749c08f2936d1bef5e793,

title = "Thermal behavior of a Langmuir-Blodgett film of dioctadecyldimethylammonium-Au(dmit)2 salt investigated by infrared spectroscopy",

abstract = "Thermal behavior of a Langmuir-Blodgett (LB) film of dioctadecyldimethylammonium-Au(dmit)2 (2C18-Au(dmit) 2) salt has been studied by means of infrared transmission spectroscopy. Two bands due to the CH2 antisymmetric and symmetric stretching modes have been used to monitor the orientation of the hydrocarbon chain in the 2C18-Au(dmit)2 LB film, and the absorption band due to the C=S stretching mode has been employed to investigate the aggregation state of Au(dmit)2 chromophores. Temperature-dependent infrared spectral changes have revealed that there are, at least, two different ordered states in the LB film below the order-disorder transition between 100 and 110 °C. The above results are important, showing that the heat treatment can be a powerful and versatile tool to control the structure of the 2C 18-Au(dmit)2 LB film.",

keywords = "Au(dmit) chromophore, Hydrocarbon chain, Infrared spectroscopy, LB film, Thermal behavior",

author = "Morita, {Shin Ichi} and Akifumi Ikehata and Miura, {Yasuhiro F.} and Michio Sugi and Yukihiro Ozaki",

year = "2004",

month = oct,

doi = "10.1016/j.tsf.2004.06.019",

language = "English",

volume = "464-465",

pages = "408--411",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier",

}

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AU - Morita, Shin Ichi

AU - Ikehata, Akifumi

AU - Miura, Yasuhiro F.

AU - Sugi, Michio

AU - Ozaki, Yukihiro

PY - 2004/10

Y1 - 2004/10

N2 - Thermal behavior of a Langmuir-Blodgett (LB) film of dioctadecyldimethylammonium-Au(dmit)2 (2C18-Au(dmit) 2) salt has been studied by means of infrared transmission spectroscopy. Two bands due to the CH2 antisymmetric and symmetric stretching modes have been used to monitor the orientation of the hydrocarbon chain in the 2C18-Au(dmit)2 LB film, and the absorption band due to the C=S stretching mode has been employed to investigate the aggregation state of Au(dmit)2 chromophores. Temperature-dependent infrared spectral changes have revealed that there are, at least, two different ordered states in the LB film below the order-disorder transition between 100 and 110 °C. The above results are important, showing that the heat treatment can be a powerful and versatile tool to control the structure of the 2C 18-Au(dmit)2 LB film.

AB - Thermal behavior of a Langmuir-Blodgett (LB) film of dioctadecyldimethylammonium-Au(dmit)2 (2C18-Au(dmit) 2) salt has been studied by means of infrared transmission spectroscopy. Two bands due to the CH2 antisymmetric and symmetric stretching modes have been used to monitor the orientation of the hydrocarbon chain in the 2C18-Au(dmit)2 LB film, and the absorption band due to the C=S stretching mode has been employed to investigate the aggregation state of Au(dmit)2 chromophores. Temperature-dependent infrared spectral changes have revealed that there are, at least, two different ordered states in the LB film below the order-disorder transition between 100 and 110 °C. The above results are important, showing that the heat treatment can be a powerful and versatile tool to control the structure of the 2C 18-Au(dmit)2 LB film.

KW - Au(dmit) chromophore

KW - Hydrocarbon chain

KW - Infrared spectroscopy

KW - LB film

KW - Thermal behavior

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