From nanostructured piezoelectric materials to broadband transducers for high resolution ultrasonic imaging

Kui Yao, Weng Heng Liew, Shuting Chen, Meysam Sharifzadeh Mirshekarloo, Francis Eng Hock Tay

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

One-dimensional (1D) piezoelectric nanotubes have been fabricated and integrated for producing high frequency nanotube array ultrasonic transducers for high resolution ultrasonic imaging. We find that the nanotube structural feature and the unique nanoconfinement-induced crystal and polarization orientation lead to outstanding piezoelectric material properties and the resulting superior transducer performance. The nanotube array ultrasonic transducers show a broad bandwidth of 126 % (-6 dB) at 108 MHz, with significantly improved sensitivity in comparison with conventional thin film transducers despite the size shrinkage. We further demonstrate high resolution scanning ultrasonic imaging and photoacoustic imaging using the obtained nanotube array transducers, exhibiting great application values.

Original languageEnglish
Title of host publicationNEMS 2018 - 13th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages401-404
Number of pages4
ISBN (Electronic)9781538652732
DOIs
Publication statusPublished - 3 Dec 2018
Externally publishedYes
EventIEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) 2018 - Singapore, Singapore
Duration: 22 Apr 201826 Apr 2018
Conference number: 13th

Publication series

NameNEMS 2018 - 13th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems

Conference

ConferenceIEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) 2018
Abbreviated titleNEMS 2018
CountrySingapore
CitySingapore
Period22/04/1826/04/18

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