Screen-printed ultrasonic 2-D matrix array transducers for microparticle manipulation

Yongqiang Qiu (Lead / Corresponding author), Han Wang, Sylvia Gebhardt, Aleksandrs Bolhovitins, Christine E. M. Démoré, Andreas Schönecker, Sandy Cochran

    Research output: Contribution to journalArticle

    6 Citations (Scopus)
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    Abstract

    This paper reports the development of a two-dimensional thick film lead zirconate titanate (PZT) ultrasonic transducer array, operating at frequency approximately 7.5MHz, to demonstrate the potential of this fabrication technique for microparticle manipulation. All layers of the array are screen-printed then sintered on an alumina substrate without any subsequent patterning processes. The thickness of the thick film PZT is 139±2μm, the element pitch of the array is 2.3mm, and the dimension of each individual PZT element is 2×2mm<sup>2</sup> with top electrode 1.7×1.7mm<sup>2</sup>. The measured relative dielectric constant of the PZT is 2250±100 and the dielectric loss is 0.09±0.005 at 10kHz. Finite element analysis was used to predict the behaviour of the array and to optimise its configuration. Electrical impedance spectroscopy and laser vibrometry were used to characterise the array experimentally. The measured surface motion of a single element is on the order of tens of nanometres with a 10V<inf>peak</inf> continuous sinusoidal excitation. Particle manipulation experiments have been demonstrated with the array by manipulating Ø10μm polystyrene microspheres in degassed water. The simplified array fabrication process and the bulk production capability of screen-printing suggest potential for the commercialisation of multilayer planar resonant devices for ultrasonic particle manipulation.

    Original languageEnglish
    Pages (from-to)136-146
    Number of pages11
    JournalUltrasonics
    Volume62
    Early online date23 May 2015
    DOIs
    Publication statusPublished - Sep 2015

    Fingerprint

    microparticles
    manipulators
    transducers
    ultrasonics
    matrices
    thick films
    fabrication
    commercialization
    electrical impedance
    dielectric loss
    printing
    polystyrene
    aluminum oxides
    permittivity
    electrodes
    configurations
    water
    spectroscopy
    excitation
    lasers

    Keywords

    • 2-D matrix array
    • Particle manipulation
    • Screen-printing
    • Thick film

    Cite this

    Qiu, Y., Wang, H., Gebhardt, S., Bolhovitins, A., Démoré, C. E. M., Schönecker, A., & Cochran, S. (2015). Screen-printed ultrasonic 2-D matrix array transducers for microparticle manipulation. Ultrasonics, 62, 136-146. https://doi.org/10.1016/j.ultras.2015.05.010
    Qiu, Yongqiang ; Wang, Han ; Gebhardt, Sylvia ; Bolhovitins, Aleksandrs ; Démoré, Christine E. M. ; Schönecker, Andreas ; Cochran, Sandy. / Screen-printed ultrasonic 2-D matrix array transducers for microparticle manipulation. In: Ultrasonics. 2015 ; Vol. 62. pp. 136-146.
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    abstract = "This paper reports the development of a two-dimensional thick film lead zirconate titanate (PZT) ultrasonic transducer array, operating at frequency approximately 7.5MHz, to demonstrate the potential of this fabrication technique for microparticle manipulation. All layers of the array are screen-printed then sintered on an alumina substrate without any subsequent patterning processes. The thickness of the thick film PZT is 139±2μm, the element pitch of the array is 2.3mm, and the dimension of each individual PZT element is 2×2mm2 with top electrode 1.7×1.7mm2. The measured relative dielectric constant of the PZT is 2250±100 and the dielectric loss is 0.09±0.005 at 10kHz. Finite element analysis was used to predict the behaviour of the array and to optimise its configuration. Electrical impedance spectroscopy and laser vibrometry were used to characterise the array experimentally. The measured surface motion of a single element is on the order of tens of nanometres with a 10Vpeak continuous sinusoidal excitation. Particle manipulation experiments have been demonstrated with the array by manipulating {\O}10μm polystyrene microspheres in degassed water. The simplified array fabrication process and the bulk production capability of screen-printing suggest potential for the commercialisation of multilayer planar resonant devices for ultrasonic particle manipulation.",
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    Qiu, Y, Wang, H, Gebhardt, S, Bolhovitins, A, Démoré, CEM, Schönecker, A & Cochran, S 2015, 'Screen-printed ultrasonic 2-D matrix array transducers for microparticle manipulation', Ultrasonics, vol. 62, pp. 136-146. https://doi.org/10.1016/j.ultras.2015.05.010

    Screen-printed ultrasonic 2-D matrix array transducers for microparticle manipulation. / Qiu, Yongqiang (Lead / Corresponding author); Wang, Han; Gebhardt, Sylvia; Bolhovitins, Aleksandrs; Démoré, Christine E. M.; Schönecker, Andreas; Cochran, Sandy.

    In: Ultrasonics, Vol. 62, 09.2015, p. 136-146.

    Research output: Contribution to journalArticle

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    AB - This paper reports the development of a two-dimensional thick film lead zirconate titanate (PZT) ultrasonic transducer array, operating at frequency approximately 7.5MHz, to demonstrate the potential of this fabrication technique for microparticle manipulation. All layers of the array are screen-printed then sintered on an alumina substrate without any subsequent patterning processes. The thickness of the thick film PZT is 139±2μm, the element pitch of the array is 2.3mm, and the dimension of each individual PZT element is 2×2mm2 with top electrode 1.7×1.7mm2. The measured relative dielectric constant of the PZT is 2250±100 and the dielectric loss is 0.09±0.005 at 10kHz. Finite element analysis was used to predict the behaviour of the array and to optimise its configuration. Electrical impedance spectroscopy and laser vibrometry were used to characterise the array experimentally. The measured surface motion of a single element is on the order of tens of nanometres with a 10Vpeak continuous sinusoidal excitation. Particle manipulation experiments have been demonstrated with the array by manipulating Ø10μm polystyrene microspheres in degassed water. The simplified array fabrication process and the bulk production capability of screen-printing suggest potential for the commercialisation of multilayer planar resonant devices for ultrasonic particle manipulation.

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    Qiu Y, Wang H, Gebhardt S, Bolhovitins A, Démoré CEM, Schönecker A et al. Screen-printed ultrasonic 2-D matrix array transducers for microparticle manipulation. Ultrasonics. 2015 Sep;62:136-146. https://doi.org/10.1016/j.ultras.2015.05.010