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Issue 46, 2013
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Controlling the microstructure of poly(vinylidene-fluoride) (PVDF) thin films for microelectronics

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Abstract

PVDF thin films prepared under standard processing conditions have a cloudy appearance and are notoriously rough, which prevent microelectronic and photonic applications. On the other hand, high optical quality, smooth films can be prepared either at low relative humidity or at high substrate temperature. Here we systematically investigate the morphology of PVDF thin films by varying the processing conditions. Films are characterized by SEM and AFM and by measurements of clarity, haze and absorption. We show that the cloudy appearance is due to vapor-induced phase separation (VIPS) as is well-documented for the formation of PVDF membranes. Formation of opaque thin films is a general problem of any ternary polymer/solvent/non-solvent system where a high boiling point solvent is used that is fully miscible with a non-solvent, here water from the ambient.

Graphical abstract: Controlling the microstructure of poly(vinylidene-fluoride) (PVDF) thin films for microelectronics

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Publication details

The article was received on 09 Sep 2013, accepted on 20 Sep 2013 and first published on 23 Sep 2013


Article type: Paper
DOI: 10.1039/C3TC31774A
Citation: J. Mater. Chem. C, 2013,1, 7695-7702
  • Open access: Creative Commons BY-NC license
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    Controlling the microstructure of poly(vinylidene-fluoride) (PVDF) thin films for microelectronics

    M. Li, I. Katsouras, C. Piliego, G. Glasser, I. Lieberwirth, P. W. M. Blom and D. M. de Leeuw, J. Mater. Chem. C, 2013, 1, 7695
    DOI: 10.1039/C3TC31774A

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