Langmuir-Blodgett manipulation of poly(3-alkylthiophenes)

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Langmuir; (USA)

DOI:https://doi.org/10.1021/la00096a024· OSTI ID:6047560

Watanabe, Itsuo; Hong, K; Rubner, M F ^[1]

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1. Massachusetts Institute of Technology, Cambridge (USA)

Langmuir-Blodgett (LB) multilayer thin films were fabricated from mixed monolayers containing stearic acid and various poly(3-alkylthiophenes). It has been found that mixed LB films containing as much as 80 mol % of poly(3-alkylthiophenes) form stable monolayers at the air-water interface that can be deposited onto solid substrates as Y-type films by the vertical lifting method. The LB films exhibit well-defined layered structures as determined by optical, capacitance, and x-ray diffraction measurements. Multilayer thin films containing highly ordered domains of cadmium stearate can be formed with polythiophenes substituted with alkyl chain lengths ranging from 4 to 18 carbon atoms. The molecular organization and the electrical and optical properties of the films depend on the length of the alkyl chain of the polythiophene backbone. All of these LB films can be rendered electrically conductive by doping with strong oxidizing agents.

• OSTI ID: 6047560
• Journal Information: Langmuir; (USA), Journal Name: Langmuir; (USA) Vol. 6:6; ISSN LANGD; ISSN 0743-7463
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601* -- Other Materials-- Preparation & Manufacture
360602 -- Other Materials-- Structure & Phase Studies
CALCULATION METHODS
CARBOXYLIC ACIDS
CHEMICAL PREPARATION
COHERENT SCATTERING
DATA
DIFFRACTION
EXPERIMENTAL DATA
FILMS
HETEROCYCLIC COMPOUNDS
INFORMATION
MONOCARBOXYLIC ACIDS
NUMERICAL DATA
OCTADECANOIC ACID
OPTICAL PROPERTIES
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
THIN FILMS
THIOPHENE
X-RAY DIFFRACTION