Formation of organic films via a magnetomechanical effect

A novel method of preparation of organic films is described, which employs an alternating magnetic field applied to the film cast from a solution and results in an improved film morphology. The changed film morphology is explained by a magnetomechanical effect due to the interaction of the applied f...

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Bibliographic Details
Published in:Journal of physics. D, Applied physics Applied physics, 2007-02, Vol.40 (3), p.850-855
Main Author: Dimitriev, O P
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Materials synthesis
materials processing
Physics
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Summary:A novel method of preparation of organic films is described, which employs an alternating magnetic field applied to the film cast from a solution and results in an improved film morphology. The changed film morphology is explained by a magnetomechanical effect due to the interaction of the applied field and the induced magnetic moment in an organic molecule. The effect is demonstrated for a range of materials, such as polymers and low-weight organic dyes, which have different tendencies to form aggregates or crystallites in the condensed state. It is proposed that the method can be used as a reasonable alternative to the spin-coating technique for preparation of cast films with a high-quality morphology.
ISSN:0022-3727
1361-6463
DOI:10.1088/0022-3727/40/3/024