Raman Study of Mixed-Stack Charge Transfer Films of 2-Octadecyl-7,7,8,8-Tetracyanoquinodimethane and 3,3′,5,5′-Tetramethylbenzidine Prepared by the Langmuir-Blodgett Technique and Donor Doping

Young Mee Jung; Shin Ichi Morita; Masanobu Ogane; Teruki Ikeda; Hideo Tashiro; Yukihiro Ozaki

doi:10.1080/10587259908026819

Raman Study of Mixed-Stack Charge Transfer Films of 2-Octadecyl-7,7,8,8-Tetracyanoquinodimethane and 3,3′,5,5′-Tetramethylbenzidine Prepared by the Langmuir-Blodgett Technique and Donor Doping

Young Mee Jung, Shin Ichi Morita, Masanobu Ogane, Teruki Ikeda, Hideo Tashiro, Yukihiro Ozaki

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

Abstract

Raman, FT-Raman and ultraviolet-visible-near infrared (UV-vis-NIR) spectra have been measured for mixed-stack charge transfer (CT) films of 2-octadecyl-7,7,8,8-tetracyanoquinodimethane (octadecyl-TCNQ) doped with 3,3′,5,5′-tetramethylbenzidine (TMB) deposited on CaF₂ plates and Au-evaporated glass slides. The 1064 nm-excited FT-Raman spectra can be observed clearly even for the one-layer CT films deposited on CaF₂ plates because the excitation wavelength is located within a broad CT band centered near 1550 nm. The degree of the charge transfer determined by a shift of the C≡N stretching band of the TCNQ chromophore suggests that the CT complex films are in a quasi-neutral state.

Original language	English
Pages (from-to)	225-228
Number of pages	4
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	327
DOIs	https://doi.org/10.1080/10587259908026819
Publication status	Published - 1999 Jan 1
Externally published	Yes

Keywords

Charge transfer
Langmure-Blodgett films
Raman spectroscopy
Tetracyanoquinodimethane

ASJC Scopus subject areas

Condensed Matter Physics

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10.1080/10587259908026819

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Jung, Y. M., Morita, S. I., Ogane, M., Ikeda, T., Tashiro, H., & Ozaki, Y. (1999). Raman Study of Mixed-Stack Charge Transfer Films of 2-Octadecyl-7,7,8,8-Tetracyanoquinodimethane and 3,3′,5,5′-Tetramethylbenzidine Prepared by the Langmuir-Blodgett Technique and Donor Doping. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 327, 225-228. https://doi.org/10.1080/10587259908026819

Raman Study of Mixed-Stack Charge Transfer Films of 2-Octadecyl-7,7,8,8-Tetracyanoquinodimethane and 3,3′,5,5′-Tetramethylbenzidine Prepared by the Langmuir-Blodgett Technique and Donor Doping. / Jung, Young Mee; Morita, Shin Ichi; Ogane, Masanobu et al.
In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, Vol. 327, 01.01.1999, p. 225-228.

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

Jung, YM, Morita, SI, Ogane, M, Ikeda, T, Tashiro, H & Ozaki, Y 1999, 'Raman Study of Mixed-Stack Charge Transfer Films of 2-Octadecyl-7,7,8,8-Tetracyanoquinodimethane and 3,3′,5,5′-Tetramethylbenzidine Prepared by the Langmuir-Blodgett Technique and Donor Doping', Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, vol. 327, pp. 225-228. https://doi.org/10.1080/10587259908026819

Jung YM, Morita SI, Ogane M, Ikeda T, Tashiro H, Ozaki Y. Raman Study of Mixed-Stack Charge Transfer Films of 2-Octadecyl-7,7,8,8-Tetracyanoquinodimethane and 3,3′,5,5′-Tetramethylbenzidine Prepared by the Langmuir-Blodgett Technique and Donor Doping. Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 1999 Jan 1;327:225-228. doi: 10.1080/10587259908026819

Jung, Young Mee ; Morita, Shin Ichi ; Ogane, Masanobu et al. / Raman Study of Mixed-Stack Charge Transfer Films of 2-Octadecyl-7,7,8,8-Tetracyanoquinodimethane and 3,3′,5,5′-Tetramethylbenzidine Prepared by the Langmuir-Blodgett Technique and Donor Doping. In: Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals. 1999 ; Vol. 327. pp. 225-228.

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abstract = "Raman, FT-Raman and ultraviolet-visible-near infrared (UV-vis-NIR) spectra have been measured for mixed-stack charge transfer (CT) films of 2-octadecyl-7,7,8,8-tetracyanoquinodimethane (octadecyl-TCNQ) doped with 3,3′,5,5′-tetramethylbenzidine (TMB) deposited on CaF2 plates and Au-evaporated glass slides. The 1064 nm-excited FT-Raman spectra can be observed clearly even for the one-layer CT films deposited on CaF2 plates because the excitation wavelength is located within a broad CT band centered near 1550 nm. The degree of the charge transfer determined by a shift of the C≡N stretching band of the TCNQ chromophore suggests that the CT complex films are in a quasi-neutral state.",

keywords = "Charge transfer, Langmure-Blodgett films, Raman spectroscopy, Tetracyanoquinodimethane",

author = "Jung, {Young Mee} and Morita, {Shin Ichi} and Masanobu Ogane and Teruki Ikeda and Hideo Tashiro and Yukihiro Ozaki",

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AU - Jung, Young Mee

AU - Morita, Shin Ichi

AU - Ogane, Masanobu

AU - Ikeda, Teruki

AU - Tashiro, Hideo

AU - Ozaki, Yukihiro

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N2 - Raman, FT-Raman and ultraviolet-visible-near infrared (UV-vis-NIR) spectra have been measured for mixed-stack charge transfer (CT) films of 2-octadecyl-7,7,8,8-tetracyanoquinodimethane (octadecyl-TCNQ) doped with 3,3′,5,5′-tetramethylbenzidine (TMB) deposited on CaF2 plates and Au-evaporated glass slides. The 1064 nm-excited FT-Raman spectra can be observed clearly even for the one-layer CT films deposited on CaF2 plates because the excitation wavelength is located within a broad CT band centered near 1550 nm. The degree of the charge transfer determined by a shift of the C≡N stretching band of the TCNQ chromophore suggests that the CT complex films are in a quasi-neutral state.

AB - Raman, FT-Raman and ultraviolet-visible-near infrared (UV-vis-NIR) spectra have been measured for mixed-stack charge transfer (CT) films of 2-octadecyl-7,7,8,8-tetracyanoquinodimethane (octadecyl-TCNQ) doped with 3,3′,5,5′-tetramethylbenzidine (TMB) deposited on CaF2 plates and Au-evaporated glass slides. The 1064 nm-excited FT-Raman spectra can be observed clearly even for the one-layer CT films deposited on CaF2 plates because the excitation wavelength is located within a broad CT band centered near 1550 nm. The degree of the charge transfer determined by a shift of the C≡N stretching band of the TCNQ chromophore suggests that the CT complex films are in a quasi-neutral state.

KW - Charge transfer

KW - Langmure-Blodgett films

KW - Raman spectroscopy

KW - Tetracyanoquinodimethane

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Raman Study of Mixed-Stack Charge Transfer Films of 2-Octadecyl-7,7,8,8-Tetracyanoquinodimethane and 3,3′,5,5′-Tetramethylbenzidine Prepared by the Langmuir-Blodgett Technique and Donor Doping

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