Declamped Piezoelectric Coefficients in Patterned 70/30 Lead Magnesium Niobate–Lead Titanate Thin Films

Ryan Keech, Linghan Ye, James L. Bosse, Giovanni Esteves, Jonathon Guerrier, Jacob L. Jones, Marcelo A. Kuroda, Bryan D. Huey, Susan E. Trolier-McKinstry

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Lateral subdivision of blanket piezoelectric thin films increases the functional properties through both increased domain wall mobility and declamping of the intrinsic response. This work presents the local effects of substrate declamping on the piezoelectric coefficient d33,f of 300 nm thick, rhombohedral, {001}-oriented lead magnesium niobate–lead titanate thin films at the 70/30 composition (70PMN–30PT). Films grown by chemical solution deposition on platinized Si substrates are patterned into strip structures ranging from 0.75 to 9 µm in width. The longitudinal piezoelectric coefficient, d33,f, is interrogated as a function of position across the patterned structures by three approaches: finite element modeling, piezoresponse force microscopy, and nanoprobe synchrotron X-ray diffraction. It is found that d33,f increases from the clamped value of 40–50 to ≈160 pm V−1 at the free sidewall under 200 kV cm−1 excitation. The sidewalls partially declamp the piezoelectric response 500–600 nm into the patterned structure, raising the piezoelectric response at the center of features with lateral dimensions less than 1 µm (3:1 width to thickness aspect ratio). The normalized data from all three methods are in excellent agreement, with quantitative differences providing insight to the field dependence of the piezoelectric coefficient and its declamping behavior.

Original languageEnglish (US)
Article number1605014
JournalAdvanced Functional Materials
Volume27
Issue number9
DOIs
StatePublished - Mar 3 2017

Fingerprint

Magnesium
magnesium
Lead
Nanoprobes
Thin films
Domain walls
Substrates
coefficients
thin films
Synchrotrons
Aspect ratio
Microscopic examination
subdivisions
blankets
X ray diffraction
domain wall
aspect ratio
strip
synchrotrons
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry

Cite this

Keech, Ryan ; Ye, Linghan ; Bosse, James L. ; Esteves, Giovanni ; Guerrier, Jonathon ; Jones, Jacob L. ; Kuroda, Marcelo A. ; Huey, Bryan D. ; Trolier-McKinstry, Susan E. / Declamped Piezoelectric Coefficients in Patterned 70/30 Lead Magnesium Niobate–Lead Titanate Thin Films. In: Advanced Functional Materials. 2017 ; Vol. 27, No. 9.
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Declamped Piezoelectric Coefficients in Patterned 70/30 Lead Magnesium Niobate–Lead Titanate Thin Films. / Keech, Ryan; Ye, Linghan; Bosse, James L.; Esteves, Giovanni; Guerrier, Jonathon; Jones, Jacob L.; Kuroda, Marcelo A.; Huey, Bryan D.; Trolier-McKinstry, Susan E.

In: Advanced Functional Materials, Vol. 27, No. 9, 1605014, 03.03.2017.

Research output: Contribution to journalArticle

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AU - Jones, Jacob L.

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