PVDF-TrFE/BSTO composite polymer based transducers for high resolution ultrasound and photoacoustic imaging

Nagendra Singh; Shivam R.; S. K. Biswas

doi:10.1117/12.3017157

20 June 2024 PVDF-TrFE/BSTO composite polymer based transducers for high resolution ultrasound and photoacoustic imaging

Nagendra Singh, Shivam R., S. K. Biswas

Author Affiliations +

Proceedings Volume 13006, Biomedical Spectroscopy, Microscopy, and Imaging III; 130060E (2024) https://doi.org/10.1117/12.3017157
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

This work demonstrates the fabrication of high-frequency ultrasound transducers, which are capable of sensing high-frequency and broad bandwidth photoacoustics and ultrasound signals. For sensor film fabrication purposes, a piezoelectric composite polymer consisting of PVDF-TrFE (Polyvinylidene difluoride trifluoroethylene) and lab-synthesized single crystal BSTO (Barium Strontium Titanate) nanofiller is used. The piezoelectric efficiency after the addition of BSTO in PVDF-TrFE is characterized using FTIR spectroscopy. The fabricated transducers are tested in the pulse-echo mode and the central frequency is found up to 43 MHz with a bandwidth of 40 MHz (93% at -6dB). Photoacoustic signals of frequency 14.5MHz and bandwidth of more than 100% are detected using the fabricated transducers. The transducers are used for photoacoustic imaging of two photoacoustic sources. The high sensitivity and broad frequency spectrum of the transducers make them suitable for high-resolution photoacoustics and ultrasound imaging for biomedical imaging and nondestructive testing.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Nagendra Singh, Shivam R., and S. K. Biswas "PVDF-TrFE/BSTO composite polymer based transducers for high resolution ultrasound and photoacoustic imaging", Proc. SPIE 13006, Biomedical Spectroscopy, Microscopy, and Imaging III, 130060E (20 June 2024); https://doi.org/10.1117/12.3017157

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available