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Applied Physics Letters / Volume 92 / Issue 5 / DIELECTRICS AND FERROELECTRICITY

Appl. Phys. Lett. 92, 052903 (2008); http://dx.doi.org/10.1063/1.2841706 (3 pages)

Interface modification and bonding of lithium tantalate crystals

I. Torchinsky and G. Rosenman

Department of Physical Electronics, School of Electrical Engineering Tel Aviv University, Tel Aviv 69978, Israel

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(Received 16 December 2007; accepted 14 January 2008; published online 7 February 2008)

Intermolecular interactions defined by surface free energy of solids are a critical factor affecting adhesion and bonding of the materials. An experimental technique for surface free energy and related properties (wettability and adhesion) modification has been developed and applied to lithium tantalate ferroelectric crystals. The method is based on combination of ultraviolet illumination and low-energy electron irradiation. These two techniques provide controllable wettability tailoring in a wide range of contact angles of 6°–87°. Fabrication of various wetting configurations of contacted and bonded lithium tantalate (LT) pair plates, such as hydrophilic/hydrophilic, hydrophilic/hydrophobic, and hydrophobic/hydrophobic, allows us to demonstrate direct bonding for modified hydrophilic polar LT faces.

© 2008 American Institute of Physics

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KEYWORDS and PACS

Keywords

adhesion, contact angle, crystal binding, electron beam effects, ferroelectric materials, free energy, lithium compounds, wetting

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.2841706

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    M. J. Missey, V. Dominic, L. E. Myers, and R. C. Eckardt, Opt. Lett. 23, 9 (1998)APPLAB000066000007000827000001.

    A. C. Muir, S. Mailis, and R. W. Eason, J. Appl. Phys. 101, 104916 (2007)JAPIAU000101000010104916000001.

    D. Aronov, M. Molotskii, and G. Rosenman, Appl. Phys. Lett. 90, 104104 (2007)APPLAB000090000010104104000001.

    J. Hiller, J. Appl. Phys. 15, 663 (1944)JAPIAU000015000009000663000001.


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