Surface Morphology of Polyimide Thin Film Dip-Coated on Polyester Filament for Dielectric Layer in Fibrous Organic Field Effect Transistor

• Autorzy: Rambausek L. , Bruneel E. , Van Driessche I. , Van Langenhove L.

Identyfikatory

DOI

10.2478/aut-2014-0012

• Języki publikacji: EN

Abstrakty

EN

The idea of wearable electronics automatically leads to the concept of integrating electronic functions on textile substrates. Since this substrate type implies certain challenges in comparison with their rigid electronic companions, it is of utmost importance to investigate the application of materials for generating the electronic functions on the textile substrate. Only when interaction of materials and textile substrate is fully understood, the electronic function can be generated on the textile without changing the textile’s properties, being flexible or stretchable. This research deals with the optimization of the dielectric layer in a fibrous organic field effect transistor (OFET). A transistor can act as an electrical switch in a circuit. In this work, the polyimide layer was dip-coated on a copper-coated polyester filament. After thoroughly investigating the process conditions, best results with minimal thickness and roughness at full insulation could be achieved at a dip-coating speed of 50 mm/min. The polyimide solution was optimal at 15w% and the choice for the solvent NMP was made. In this paper, details on the pre-treatment methods, choice of solvent and dip-coating speed and their effect on layer morphology and thickness, electrical properties and roughness are reported. Results show that the use of polyimide as a dielectric layer in the architecture of a fibrous OFET is promising. Further research deals with the application of the semiconductor layer within the mentioned architecture, to finally build an OFET on a filament for application in smart textiles.

Słowa kluczowe

EN

polyimide; dielectric; organic field effect transistor; filament; dip-coating

PL

poliamid; dielektryk; organiczny tranzystor polowy; żarnik; powłoka zanurzeniowa

• Wydawca: Lodz University of Technology, Faculty of Material Technologies and Textile Design
• Czasopismo: Autex Research Journal
• Rocznik: 2014
• Tom: Vol. 14, no. 3
• Strony: 152--160
• Opis fizyczny: Bibliogr. 31. poz.

Twórcy

autor

Rambausek L.

• Ghent University - Department of Textiles, Ghent, Belgium, Technologiepark 907, 9052 Zwijnaarde, tel [phone], fax [phone]

autor

Bruneel E.

• Ghent University - Department of Inorganic and Physical Chemistry, Ghent, Belgium, Krijgslaan 281 S3, 9000 Ghent, tel. [phone], fax [phone]

autor

Van Driessche I.

• Ghent University - Department of Inorganic and Physical Chemistry, Ghent, Belgium, Krijgslaan 281 S3, 9000 Ghent, tel. [phone], fax [phone]

autor

Van Langenhove L.

• Ghent University - Department of Textiles, Ghent, Belgium, Technologiepark 907, 9052 Zwijnaarde

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