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

School of Energy & Electronic Engineering

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

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 - 7 Jul 2014

Keywords

BiT
photolysis
piezoelectric
PMOD
PZT
touchscreen
transparency
UV

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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(Zr0.52,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 P r = 9.3 µC/cm2 and 6.1 µC/cm2 for optimized UV-irradiated PZT and BiT thin films, respectively, than uncured samples.",

keywords = "BiT, photolysis, piezoelectric, PMOD, PZT, touchscreen, transparency, UV",

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

year = "2014",

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AU - Hoshyarmanesh, Hamidreza

AU - Nehzat, Naser

AU - Salehi, Mehdi

AU - Ghodsi, Mojtaba

AU - Lee, Hong-Sub

AU - Park, Hyung-Ho

PY - 2014/7/7

Y1 - 2014/7/7

N2 - Ferroelectric thin films of lead zirconate titanate Pb(Zr0.52,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 P r = 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(Zr0.52,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 P r = 9.3 µC/cm2 and 6.1 µC/cm2 for optimized UV-irradiated PZT and BiT thin films, respectively, than uncured samples.

KW - BiT

KW - photolysis

KW - piezoelectric

KW - PMOD

KW - PZT

KW - touchscreen

KW - transparency

KW - UV

U2 - 10.1080/10426914.2014.921710

DO - 10.1080/10426914.2014.921710

M3 - Article

SN - 1042-6914

VL - 29

SP - 870

EP - 876

JO - Materials and Manufacturing Processes

JF - Materials and Manufacturing Processes

IS - 7

ER -

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

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Keywords

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