journal article·2020-04-01Open access

Enhanced adhesion in two-photon polymerization direct laser writing

A. G. Izard, E. P. Garcia, M. Dixon, E. O. Potma, T. Baldacchini, L. Valdevit

AIP Advances· Volume 10· Issue 4

Abstract

We have quantified the adhesion forces between two-photon polymerization direct laser writing (TPP-DLW) microstructures and glass surfaces with and without an adhesion promoter. Glass surfaces treated with an acryloxy-silane agent produce adhesion forces that are almost three times larger than the forces observed with pristine glass surfaces. Determination of the substrates’ surface free energies suggests that the observed adhesion enhancement is chemical in its nature, implying that covalent bonds are formed between the polymer and the glass by means of the silane agent. The importance of this finding is demonstrated in the successful production of glassy carbon microstructures using TPP-DLW, followed by pyrolysis.
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Research context

OpenAlex topics: Nonlinear Optical Materials Studies · Laser Material Processing Techniques · Nanofabrication and Lithography Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Mechanical and Aerospace Engineering Department, University of California 1 , Irvine, California 92697, USA

Department of Chemistry, University of California 2 , Irvine, California 92697, USA

Nanoscience Instruments, Inc. 3 , Phoenix, Arizona 85044, USA

Schmid College of Science and Technology, Chapman University 4 , Orange, California 92866, USA

Materials Science and Engineering Department, University of California 5 , Irvine, California 92697, USA

Funding

National Science Foundation

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