Low-cost, damage-free patterning of lead Zirconate Titanate films

Aaron J. Welsh, Rudeger H.T. Wilke, Michael A. Hickner, Susan Trolier-Mckinstry

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The ability to pattern piezoelectric thin films without damage is crucial for the development of microelectromechanical systems. Direct patterning of complex oxides through microcontact printing was explored as an alternative to subtractive patterning. This process utilized an elastomeric stamp to transfer a chemical solution precursor of a piezoelectric material onto a substrate in a desired pattern. Polyurethane-based stamps improved wetting of polar solutions on the stamp. This allowed for high-fidelity patterning over multiple stamping cycles. Microcontact printing deposited patterned PbZr0.52Ti 0.48O3 layers from 0.1 to 1 μm in thickness. The lateral feature sizes attained varied from 5 to 500 μm. Upon crystallization at 700°C, the features formed phase-pure perovskite PZT. The printed features had comparable electrical and electromechanical properties to those of continuous PZT films of similar thicknesses. For example, 1 μm thick PZT features had a permittivity of 1050 and a loss tangent of 0.02 at 10 kHz. The remanent polarization was 30 μC/cm2, and the coercive field was 45 kV/cm. The piezoelectric coefficient e31,f was -7 C/m2. These values indicated that the microcontact printing process did not adversely affect the PZT crystallization or properties for the thicknesses explored in this work.

Original languageEnglish (US)
Pages (from-to)2799-2805
Number of pages7
JournalJournal of the American Ceramic Society
Volume96
Issue number9
DOIs
StatePublished - Sep 1 2013

Fingerprint

titanate
Printing
crystallization
Lead
Crystallization
damage
permittivity
perovskite
cost
wetting
Costs
Polyurethanes
polarization
Remanence
Piezoelectric materials
Stamping
oxide
substrate
Perovskite
Oxides

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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abstract = "The ability to pattern piezoelectric thin films without damage is crucial for the development of microelectromechanical systems. Direct patterning of complex oxides through microcontact printing was explored as an alternative to subtractive patterning. This process utilized an elastomeric stamp to transfer a chemical solution precursor of a piezoelectric material onto a substrate in a desired pattern. Polyurethane-based stamps improved wetting of polar solutions on the stamp. This allowed for high-fidelity patterning over multiple stamping cycles. Microcontact printing deposited patterned PbZr0.52Ti 0.48O3 layers from 0.1 to 1 μm in thickness. The lateral feature sizes attained varied from 5 to 500 μm. Upon crystallization at 700°C, the features formed phase-pure perovskite PZT. The printed features had comparable electrical and electromechanical properties to those of continuous PZT films of similar thicknesses. For example, 1 μm thick PZT features had a permittivity of 1050 and a loss tangent of 0.02 at 10 kHz. The remanent polarization was 30 μC/cm2, and the coercive field was 45 kV/cm. The piezoelectric coefficient e31,f was -7 C/m2. These values indicated that the microcontact printing process did not adversely affect the PZT crystallization or properties for the thicknesses explored in this work.",
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Low-cost, damage-free patterning of lead Zirconate Titanate films. / Welsh, Aaron J.; Wilke, Rudeger H.T.; Hickner, Michael A.; Trolier-Mckinstry, Susan.

In: Journal of the American Ceramic Society, Vol. 96, No. 9, 01.09.2013, p. 2799-2805.

Research output: Contribution to journalArticle

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