Organic thin films based on a dicyanovinyl-quaterthiophene: Influence of electrode configuration on third-order nonlinear optical properties measured by electroabsorption spectroscopy

Christine Videlot-Ackermann; Takashi Isoshima; Abderrahim Yassar; Tatsuo Wada; Hiroyuki Sasabe; Denis Fichou

doi:10.1016/j.apsusc.2006.02.031

Organic thin films based on a dicyanovinyl-quaterthiophene: Influence of electrode configuration on third-order nonlinear optical properties measured by electroabsorption spectroscopy

Christine Videlot-Ackermann
, Takashi Isoshima
, Abderrahim Yassar
, Tatsuo Wada
, Hiroyuki Sasabe
, Denis Fichou

CNRS
RIKEN (The Institute of Physical and Chemical Research)
Université Paris Diderot
Chitose Institute of Science and Technology
Institut Pierre Simon Laplace, CNRS and CEA

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

Electroabsorption (EA) studies at room temperature on organic thin films based on a dicyanovinyl-quaterthiophene 4T-V(CN) ₂ are reported. An electric field modulation is applied to the samples for two different electrode geometries, i.e. sandwich and coplanar versus the organic layer. Changes in optical absorption coefficient of 4T-V(CN) ₂ based thin films are measured and analyzed to determine the character of the optical transition in the visible range (400-800 nm). Depending on the experimental electrode configuration, magnitude of electroabsorption responses are different, possibly due to different distribution of the externally applied electric field. The results indicate a higher resolution of EA response for the sandwich electrode configuration and confirm the charge transfer exciton character of 4T-V(CN) ₂ in contrast to the unsubstituted quaterthiophene 4T. Finally, a third-order nonlinear susceptibility χ ⁽³⁾ (-ω; ω, 0, 0) of 16 × 10 ^-12 e.s.u. is obtained.

langue originale	Anglais
Pages (de - à)	1517-1521
Nombre de pages	5
journal	Applied Surface Science
Volume	253
Numéro de publication	3
Les DOIs	https://doi.org/10.1016/j.apsusc.2006.02.031
état	Publié - 30 nov. 2006
Modification externe	Oui

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10.1016/j.apsusc.2006.02.031

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@article{f85aa414864a4d33908c439fc503e355,

title = "Organic thin films based on a dicyanovinyl-quaterthiophene: Influence of electrode configuration on third-order nonlinear optical properties measured by electroabsorption spectroscopy",

abstract = " Electroabsorption (EA) studies at room temperature on organic thin films based on a dicyanovinyl-quaterthiophene 4T-V(CN) 2 are reported. An electric field modulation is applied to the samples for two different electrode geometries, i.e. sandwich and coplanar versus the organic layer. Changes in optical absorption coefficient of 4T-V(CN) 2 based thin films are measured and analyzed to determine the character of the optical transition in the visible range (400-800 nm). Depending on the experimental electrode configuration, magnitude of electroabsorption responses are different, possibly due to different distribution of the externally applied electric field. The results indicate a higher resolution of EA response for the sandwich electrode configuration and confirm the charge transfer exciton character of 4T-V(CN) 2 in contrast to the unsubstituted quaterthiophene 4T. Finally, a third-order nonlinear susceptibility χ (3) (-ω; ω, 0, 0) of 16 × 10 -12 e.s.u. is obtained.",

keywords = "Electron-withdrawing peripheral substitution, Molecular structure, Nonlinear optical properties, Optical properties, Organic semiconductors, Quaterthiophene, Thin films",

author = "Christine Videlot-Ackermann and Takashi Isoshima and Abderrahim Yassar and Tatsuo Wada and Hiroyuki Sasabe and Denis Fichou",

year = "2006",

month = nov,

day = "30",

doi = "10.1016/j.apsusc.2006.02.031",

language = "English",

volume = "253",

pages = "1517--1521",

journal = "Applied Surface Science",

issn = "0169-4332",

number = "3",

}

Videlot-Ackermann, C, Isoshima, T, Yassar, A, Wada, T, Sasabe, H & Fichou, D 2006, 'Organic thin films based on a dicyanovinyl-quaterthiophene: Influence of electrode configuration on third-order nonlinear optical properties measured by electroabsorption spectroscopy', Applied Surface Science, VOL. 253, Numéro 3, p. 1517-1521. https://doi.org/10.1016/j.apsusc.2006.02.031

Organic thin films based on a dicyanovinyl-quaterthiophene: Influence of electrode configuration on third-order nonlinear optical properties measured by electroabsorption spectroscopy. / Videlot-Ackermann, Christine; Isoshima, Takashi; Yassar, Abderrahim et al.
Dans: Applied Surface Science, Vol 253, Numéro 3, 30.11.2006, p. 1517-1521.

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

TY - JOUR

T1 - Organic thin films based on a dicyanovinyl-quaterthiophene

T2 - Influence of electrode configuration on third-order nonlinear optical properties measured by electroabsorption spectroscopy

AU - Videlot-Ackermann, Christine

AU - Isoshima, Takashi

AU - Yassar, Abderrahim

AU - Wada, Tatsuo

AU - Sasabe, Hiroyuki

AU - Fichou, Denis

PY - 2006/11/30

Y1 - 2006/11/30

N2 - Electroabsorption (EA) studies at room temperature on organic thin films based on a dicyanovinyl-quaterthiophene 4T-V(CN) 2 are reported. An electric field modulation is applied to the samples for two different electrode geometries, i.e. sandwich and coplanar versus the organic layer. Changes in optical absorption coefficient of 4T-V(CN) 2 based thin films are measured and analyzed to determine the character of the optical transition in the visible range (400-800 nm). Depending on the experimental electrode configuration, magnitude of electroabsorption responses are different, possibly due to different distribution of the externally applied electric field. The results indicate a higher resolution of EA response for the sandwich electrode configuration and confirm the charge transfer exciton character of 4T-V(CN) 2 in contrast to the unsubstituted quaterthiophene 4T. Finally, a third-order nonlinear susceptibility χ (3) (-ω; ω, 0, 0) of 16 × 10 -12 e.s.u. is obtained.

AB - Electroabsorption (EA) studies at room temperature on organic thin films based on a dicyanovinyl-quaterthiophene 4T-V(CN) 2 are reported. An electric field modulation is applied to the samples for two different electrode geometries, i.e. sandwich and coplanar versus the organic layer. Changes in optical absorption coefficient of 4T-V(CN) 2 based thin films are measured and analyzed to determine the character of the optical transition in the visible range (400-800 nm). Depending on the experimental electrode configuration, magnitude of electroabsorption responses are different, possibly due to different distribution of the externally applied electric field. The results indicate a higher resolution of EA response for the sandwich electrode configuration and confirm the charge transfer exciton character of 4T-V(CN) 2 in contrast to the unsubstituted quaterthiophene 4T. Finally, a third-order nonlinear susceptibility χ (3) (-ω; ω, 0, 0) of 16 × 10 -12 e.s.u. is obtained.

KW - Electron-withdrawing peripheral substitution

KW - Molecular structure

KW - Nonlinear optical properties

KW - Optical properties

KW - Organic semiconductors

KW - Quaterthiophene

KW - Thin films

U2 - 10.1016/j.apsusc.2006.02.031

DO - 10.1016/j.apsusc.2006.02.031

M3 - Article

AN - SCOPUS:33750733899

SN - 0169-4332

VL - 253

SP - 1517

EP - 1521

JO - Applied Surface Science

JF - Applied Surface Science

IS - 3

ER -