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Thin film Gallium nitride (GaN) based acoustofluidic Tweezer: Modelling and microparticle manipulation.

Publication ,  Journal Article
Sun, C; Wu, F; Fu, Y; Wallis, DJ; Mikhaylov, R; Yuan, F; Liang, D; Xie, Z; Wang, H; Tao, R; Shen, MH; Yang, J; Xun, W; Wu, Z; Yang, Z ...
Published in: Ultrasonics
December 2020

Gallium nitride (GaN) is a compound semiconductor which shows advantages in new functionalities and applications due to its piezoelectric, optoelectronic, and piezo-resistive properties. This study develops a thin film GaN-based acoustic tweezer (GaNAT) using surface acoustic waves (SAWs) and demonstrates its acoustofluidic ability to pattern and manipulate microparticles. Although the piezoelectric performance of the GaNAT is compromised compared with conventional lithium niobate-based SAW devices, the inherited properties of GaN allow higher input powers and superior thermal stability. This study shows for the first time that thin film GaN is suitable for the fabrication of the acoustofluidic devices to manipulate microparticles with excellent performance. Numerical modelling of the acoustic pressure fields and the trajectories of mixtures of microparticles driven by the GaNAT was performed and the results were verified from the experimental studies using samples of polystyrene microspheres. The work has proved the robustness of thin film GaN as a candidate material to develop high-power acoustic tweezers, with the potential of monolithical integration with electronics to offer diverse microsystem applications.

Duke Scholars

Published In

Ultrasonics

DOI

EISSN

1874-9968

ISSN

0041-624X

Publication Date

December 2020

Volume

108

Start / End Page

106202

Related Subject Headings

  • Acoustics
  • 5103 Classical physics
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0203 Classical Physics
 

Citation

APA
Chicago
ICMJE
MLA
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Sun, C., Wu, F., Fu, Y., Wallis, D. J., Mikhaylov, R., Yuan, F., … Yang, X. (2020). Thin film Gallium nitride (GaN) based acoustofluidic Tweezer: Modelling and microparticle manipulation. Ultrasonics, 108, 106202. https://doi.org/10.1016/j.ultras.2020.106202
Sun, Chao, Fangda Wu, Yongqing Fu, David J. Wallis, Roman Mikhaylov, Fan Yuan, Dongfang Liang, et al. “Thin film Gallium nitride (GaN) based acoustofluidic Tweezer: Modelling and microparticle manipulation.Ultrasonics 108 (December 2020): 106202. https://doi.org/10.1016/j.ultras.2020.106202.
Sun C, Wu F, Fu Y, Wallis DJ, Mikhaylov R, Yuan F, et al. Thin film Gallium nitride (GaN) based acoustofluidic Tweezer: Modelling and microparticle manipulation. Ultrasonics. 2020 Dec;108:106202.
Sun, Chao, et al. “Thin film Gallium nitride (GaN) based acoustofluidic Tweezer: Modelling and microparticle manipulation.Ultrasonics, vol. 108, Dec. 2020, p. 106202. Epmc, doi:10.1016/j.ultras.2020.106202.
Sun C, Wu F, Fu Y, Wallis DJ, Mikhaylov R, Yuan F, Liang D, Xie Z, Wang H, Tao R, Shen MH, Yang J, Xun W, Wu Z, Yang Z, Cang H, Yang X. Thin film Gallium nitride (GaN) based acoustofluidic Tweezer: Modelling and microparticle manipulation. Ultrasonics. 2020 Dec;108:106202.
Journal cover image

Published In

Ultrasonics

DOI

EISSN

1874-9968

ISSN

0041-624X

Publication Date

December 2020

Volume

108

Start / End Page

106202

Related Subject Headings

  • Acoustics
  • 5103 Classical physics
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0203 Classical Physics