Various orientations of pendant dye attached to polyamic Langmuir and Langmuir-Blodgett films studied by an optical second-harmonic generation interferometry technique

Toshiki Tamada, Shiyoshi Yokoyama, Kotaro Kajikawa, Ken Ishikawa, Hideo Takezoe, Atsuo Fukuda, Masa aki Kakimoto, Yoshio Imai

Research output: Contribution to journalConference article

8 Citations (Scopus)

Abstract

The pendant dye attached to the polyamic acid backbone in the monolayer Langmuir film is directed toward the air side from the polymer main chain, so that the monolayer has a second-harmonic (SH) active CαV symmetry where the symmetry axis is along the surface normal. The orientation is maintained in the monolayer Langmuir-Blodgett (LB) film obtained by vertical deposition. Since the counter ammonium ion with long alkyl chain functions as a pillar to support the dye moieties, the structure is changed owing to the removal of the counter ion by imidization: the dye moieties collapse and lie along the surface in the polyimide monolayer LB film in the air. However, the dye moiety attached to polyimide maintains the SH-active CαV symmetry in benzene solution, since the dye orientation is supported by the interaction with the solution.

Original languageEnglish
Pages (from-to)754-757
Number of pages4
JournalThin Solid Films
Volume244
Issue number1 -2 pt 3
DOIs
Publication statusPublished - Jan 1 1994
Externally publishedYes
EventProceedings of the 6th International Conference on Organized Molecular Films. Part 3 (of 3) - Trois-Rivieres, Que, Can
Duration: Jul 4 1993Jul 9 1993

Fingerprint

Langmuir Blodgett films
Langmuir-Blodgett films
Harmonic generation
Interferometry
harmonic generations
interferometry
Coloring Agents
Dyes
dyes
Monolayers
polyimides
Polyimides
counters
symmetry
harmonics
Radiation counters
monomolecular films
air
Air
Benzene

All Science Journal Classification (ASJC) codes

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

Cite this

Various orientations of pendant dye attached to polyamic Langmuir and Langmuir-Blodgett films studied by an optical second-harmonic generation interferometry technique. / Tamada, Toshiki; Yokoyama, Shiyoshi; Kajikawa, Kotaro; Ishikawa, Ken; Takezoe, Hideo; Fukuda, Atsuo; Kakimoto, Masa aki; Imai, Yoshio.

In: Thin Solid Films, Vol. 244, No. 1 -2 pt 3, 01.01.1994, p. 754-757.

Research output: Contribution to journalConference article

Tamada, Toshiki ; Yokoyama, Shiyoshi ; Kajikawa, Kotaro ; Ishikawa, Ken ; Takezoe, Hideo ; Fukuda, Atsuo ; Kakimoto, Masa aki ; Imai, Yoshio. / Various orientations of pendant dye attached to polyamic Langmuir and Langmuir-Blodgett films studied by an optical second-harmonic generation interferometry technique. In: Thin Solid Films. 1994 ; Vol. 244, No. 1 -2 pt 3. pp. 754-757.
@article{33a3816b06ca4bdc83b1805b112ad2d7,
title = "Various orientations of pendant dye attached to polyamic Langmuir and Langmuir-Blodgett films studied by an optical second-harmonic generation interferometry technique",
abstract = "The pendant dye attached to the polyamic acid backbone in the monolayer Langmuir film is directed toward the air side from the polymer main chain, so that the monolayer has a second-harmonic (SH) active CαV symmetry where the symmetry axis is along the surface normal. The orientation is maintained in the monolayer Langmuir-Blodgett (LB) film obtained by vertical deposition. Since the counter ammonium ion with long alkyl chain functions as a pillar to support the dye moieties, the structure is changed owing to the removal of the counter ion by imidization: the dye moieties collapse and lie along the surface in the polyimide monolayer LB film in the air. However, the dye moiety attached to polyimide maintains the SH-active CαV symmetry in benzene solution, since the dye orientation is supported by the interaction with the solution.",
author = "Toshiki Tamada and Shiyoshi Yokoyama and Kotaro Kajikawa and Ken Ishikawa and Hideo Takezoe and Atsuo Fukuda and Kakimoto, {Masa aki} and Yoshio Imai",
year = "1994",
month = "1",
day = "1",
doi = "10.1016/0040-6090(94)90565-7",
language = "English",
volume = "244",
pages = "754--757",
journal = "Thin Solid Films",
issn = "0040-6090",
publisher = "Elsevier",
number = "1 -2 pt 3",

}

TY - JOUR

T1 - Various orientations of pendant dye attached to polyamic Langmuir and Langmuir-Blodgett films studied by an optical second-harmonic generation interferometry technique

AU - Tamada, Toshiki

AU - Yokoyama, Shiyoshi

AU - Kajikawa, Kotaro

AU - Ishikawa, Ken

AU - Takezoe, Hideo

AU - Fukuda, Atsuo

AU - Kakimoto, Masa aki

AU - Imai, Yoshio

PY - 1994/1/1

Y1 - 1994/1/1

N2 - The pendant dye attached to the polyamic acid backbone in the monolayer Langmuir film is directed toward the air side from the polymer main chain, so that the monolayer has a second-harmonic (SH) active CαV symmetry where the symmetry axis is along the surface normal. The orientation is maintained in the monolayer Langmuir-Blodgett (LB) film obtained by vertical deposition. Since the counter ammonium ion with long alkyl chain functions as a pillar to support the dye moieties, the structure is changed owing to the removal of the counter ion by imidization: the dye moieties collapse and lie along the surface in the polyimide monolayer LB film in the air. However, the dye moiety attached to polyimide maintains the SH-active CαV symmetry in benzene solution, since the dye orientation is supported by the interaction with the solution.

AB - The pendant dye attached to the polyamic acid backbone in the monolayer Langmuir film is directed toward the air side from the polymer main chain, so that the monolayer has a second-harmonic (SH) active CαV symmetry where the symmetry axis is along the surface normal. The orientation is maintained in the monolayer Langmuir-Blodgett (LB) film obtained by vertical deposition. Since the counter ammonium ion with long alkyl chain functions as a pillar to support the dye moieties, the structure is changed owing to the removal of the counter ion by imidization: the dye moieties collapse and lie along the surface in the polyimide monolayer LB film in the air. However, the dye moiety attached to polyimide maintains the SH-active CαV symmetry in benzene solution, since the dye orientation is supported by the interaction with the solution.

UR - http://www.scopus.com/inward/record.url?scp=0028436838&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028436838&partnerID=8YFLogxK

U2 - 10.1016/0040-6090(94)90565-7

DO - 10.1016/0040-6090(94)90565-7

M3 - Conference article

AN - SCOPUS:0028436838

VL - 244

SP - 754

EP - 757

JO - Thin Solid Films

JF - Thin Solid Films

SN - 0040-6090

IS - 1 -2 pt 3

ER -