Piezoelectric transducers on curved dispersive bending wave and poke-charged touch screens

Hamidreza Hoshyarmanesh; Naser Nehzat; Mehdi Salehi; Mojtaba Ghodsi; Hong Sub Lee; Hyung Ho Park

doi:10.1080/10426914.2014.921710

Piezoelectric transducers on curved dispersive bending wave and poke-charged touch screens

Hamidreza Hoshyarmanesh, Naser Nehzat, Mehdi Salehi, Mojtaba Ghodsi, Hong Sub Lee, Hyung Ho Park^*

^*Corresponding author for this work

Mechanical and Industrial Engineering

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Ferroelectric thin films of lead zirconate titanate Pb(Zr _0.52,Ti_0.48)O₃(PZT) and bismuth titanate Bi₄Ti₃O₁₂(BiT) were prepared by photochemical metal-organic deposition as electromechanical transducers used in optoelectronic devices. Both solutions were deposited on flat and convex amorphous glass substrates to poke-charge the device or detect the touch point coordinate on new generation of free-shaped screens. The effects of optimization on UV exposure, precursor type and annealing temperature (600-800 °C) were investigated on microstructural, optical and ferroelectric properties of deposited thin films. Suppressing the non-uniformity of the film thicknesses due to repetitive deposition, actually there is no structural difference between the two types of substrates and their effects on the film properties. Polarization-voltage hysteresis loops showed relatively larger remnant polarization of P_r = 9.3 μC/cm² and 6.1 μC/cm² for optimized UV-irradiated PZT and BiT thin films, respectively, than uncured samples.

Original language	English
Pages (from-to)	870-876
Number of pages	7
Journal	Materials and Manufacturing Processes
Volume	29
Issue number	7
DOIs	https://doi.org/10.1080/10426914.2014.921710
Publication status	Published - Jul 3 2014

Keywords

BiT
PMOD
PZT
Photolysis
Piezoelectric
Touchscreen
Transparency
UV

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

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10.1080/10426914.2014.921710

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title = "Piezoelectric transducers on curved dispersive bending wave and poke-charged touch screens",

abstract = "Ferroelectric thin films of lead zirconate titanate Pb(Zr 0.52,Ti0.48)O3(PZT) and bismuth titanate Bi4Ti3O12(BiT) were prepared by photochemical metal-organic deposition as electromechanical transducers used in optoelectronic devices. Both solutions were deposited on flat and convex amorphous glass substrates to poke-charge the device or detect the touch point coordinate on new generation of free-shaped screens. The effects of optimization on UV exposure, precursor type and annealing temperature (600-800 °C) were investigated on microstructural, optical and ferroelectric properties of deposited thin films. Suppressing the non-uniformity of the film thicknesses due to repetitive deposition, actually there is no structural difference between the two types of substrates and their effects on the film properties. Polarization-voltage hysteresis loops showed relatively larger remnant polarization of Pr = 9.3 μC/cm2 and 6.1 μC/cm2 for optimized UV-irradiated PZT and BiT thin films, respectively, than uncured samples.",

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author = "Hamidreza Hoshyarmanesh and Naser Nehzat and Mehdi Salehi and Mojtaba Ghodsi and Lee, {Hong Sub} and Park, {Hyung Ho}",

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AU - Nehzat, Naser

AU - Salehi, Mehdi

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AU - Lee, Hong Sub

AU - Park, Hyung Ho

PY - 2014/7/3

Y1 - 2014/7/3

N2 - Ferroelectric thin films of lead zirconate titanate Pb(Zr 0.52,Ti0.48)O3(PZT) and bismuth titanate Bi4Ti3O12(BiT) were prepared by photochemical metal-organic deposition as electromechanical transducers used in optoelectronic devices. Both solutions were deposited on flat and convex amorphous glass substrates to poke-charge the device or detect the touch point coordinate on new generation of free-shaped screens. The effects of optimization on UV exposure, precursor type and annealing temperature (600-800 °C) were investigated on microstructural, optical and ferroelectric properties of deposited thin films. Suppressing the non-uniformity of the film thicknesses due to repetitive deposition, actually there is no structural difference between the two types of substrates and their effects on the film properties. Polarization-voltage hysteresis loops showed relatively larger remnant polarization of Pr = 9.3 μC/cm2 and 6.1 μC/cm2 for optimized UV-irradiated PZT and BiT thin films, respectively, than uncured samples.

AB - Ferroelectric thin films of lead zirconate titanate Pb(Zr 0.52,Ti0.48)O3(PZT) and bismuth titanate Bi4Ti3O12(BiT) were prepared by photochemical metal-organic deposition as electromechanical transducers used in optoelectronic devices. Both solutions were deposited on flat and convex amorphous glass substrates to poke-charge the device or detect the touch point coordinate on new generation of free-shaped screens. The effects of optimization on UV exposure, precursor type and annealing temperature (600-800 °C) were investigated on microstructural, optical and ferroelectric properties of deposited thin films. Suppressing the non-uniformity of the film thicknesses due to repetitive deposition, actually there is no structural difference between the two types of substrates and their effects on the film properties. Polarization-voltage hysteresis loops showed relatively larger remnant polarization of Pr = 9.3 μC/cm2 and 6.1 μC/cm2 for optimized UV-irradiated PZT and BiT thin films, respectively, than uncured samples.

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KW - Transparency

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Piezoelectric transducers on curved dispersive bending wave and poke-charged touch screens

Abstract

Keywords

ASJC Scopus subject areas

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