Effect of central metals on Langmuir-Blodgett monolayers of phthalocyanines with flexible substituents

Shungo Kojima; Tomoteru Fukumura; Tetsuya Hasegawa

doi:10.1380/ejssnt.2015.155

Effect of central metals on Langmuir-Blodgett monolayers of phthalocyanines with flexible substituents

Shungo Kojima, Tomoteru Fukumura, Tetsuya Hasegawa

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

Abstract

Langmuir-Blodgett (LB) monolayers of octaoctyloxy metallophthalocyanines (MOOPc, M = Cu, Zn) and copper tetra(tert-butyl) phthalocyanine were deposited on glass substrates. MOOPcs showed gradual increase in their surface pressure-area isotherms reflecting their flexible substituents. In spite of the similar molecular structure, Cu and ZnOOPc indicated different isotherms at lower pressure, manifested by the surface morphology. At high surface pressure, ZnOOPc monolayer became denser than CuOOPc monolayer, as was estimated by the optical absorption. These results represents that the central metals have a crucial effect on structures of LB monolayers.

Original language	English
Pages (from-to)	155-158
Number of pages	4
Journal	e-Journal of Surface Science and Nanotechnology
Volume	13
DOIs	https://doi.org/10.1380/ejssnt.2015.155
Publication status	Published - 2015
Externally published	Yes

Keywords

Atomic force microscopy
Langmuir-Blodgett films
Monolayer
Visible/ultraviolet absorption spectroscopy
X-ray reflection

ASJC Scopus subject areas

Biotechnology
Bioengineering
Condensed Matter Physics
Mechanics of Materials
Surfaces and Interfaces
Surfaces, Coatings and Films

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title = "Effect of central metals on Langmuir-Blodgett monolayers of phthalocyanines with flexible substituents",

abstract = "Langmuir-Blodgett (LB) monolayers of octaoctyloxy metallophthalocyanines (MOOPc, M = Cu, Zn) and copper tetra(tert-butyl) phthalocyanine were deposited on glass substrates. MOOPcs showed gradual increase in their surface pressure-area isotherms reflecting their flexible substituents. In spite of the similar molecular structure, Cu and ZnOOPc indicated different isotherms at lower pressure, manifested by the surface morphology. At high surface pressure, ZnOOPc monolayer became denser than CuOOPc monolayer, as was estimated by the optical absorption. These results represents that the central metals have a crucial effect on structures of LB monolayers.",

keywords = "Atomic force microscopy, Langmuir-Blodgett films, Monolayer, Visible/ultraviolet absorption spectroscopy, X-ray reflection",

author = "Shungo Kojima and Tomoteru Fukumura and Tetsuya Hasegawa",

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year = "2015",

doi = "10.1380/ejssnt.2015.155",

language = "English",

volume = "13",

pages = "155--158",

journal = "e-Journal of Surface Science and Nanotechnology",

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T1 - Effect of central metals on Langmuir-Blodgett monolayers of phthalocyanines with flexible substituents

AU - Kojima, Shungo

AU - Fukumura, Tomoteru

AU - Hasegawa, Tetsuya

PY - 2015

Y1 - 2015

N2 - Langmuir-Blodgett (LB) monolayers of octaoctyloxy metallophthalocyanines (MOOPc, M = Cu, Zn) and copper tetra(tert-butyl) phthalocyanine were deposited on glass substrates. MOOPcs showed gradual increase in their surface pressure-area isotherms reflecting their flexible substituents. In spite of the similar molecular structure, Cu and ZnOOPc indicated different isotherms at lower pressure, manifested by the surface morphology. At high surface pressure, ZnOOPc monolayer became denser than CuOOPc monolayer, as was estimated by the optical absorption. These results represents that the central metals have a crucial effect on structures of LB monolayers.

AB - Langmuir-Blodgett (LB) monolayers of octaoctyloxy metallophthalocyanines (MOOPc, M = Cu, Zn) and copper tetra(tert-butyl) phthalocyanine were deposited on glass substrates. MOOPcs showed gradual increase in their surface pressure-area isotherms reflecting their flexible substituents. In spite of the similar molecular structure, Cu and ZnOOPc indicated different isotherms at lower pressure, manifested by the surface morphology. At high surface pressure, ZnOOPc monolayer became denser than CuOOPc monolayer, as was estimated by the optical absorption. These results represents that the central metals have a crucial effect on structures of LB monolayers.

KW - Atomic force microscopy

KW - Langmuir-Blodgett films

KW - Monolayer

KW - Visible/ultraviolet absorption spectroscopy

KW - X-ray reflection

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JO - e-Journal of Surface Science and Nanotechnology

JF - e-Journal of Surface Science and Nanotechnology

ER -

Effect of central metals on Langmuir-Blodgett monolayers of phthalocyanines with flexible substituents

Abstract

Keywords

ASJC Scopus subject areas

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