High-Performance and Environmentally-Friendly Bulk-Wave-Acoustofluidic Devices Driven by Lead-Free Piezoelectric Materials
Qiu, Wei LU
(2025)
In Small
21(10).
- Abstract
- Bulk-wave-acoustofluidic devices provide strong acoustic fields and high device efficiency, thereby offering high-throughput capability when processing biological samples. Such devices are typically driven by lead zirconate titanate (PZT) transducers, which contain a high content of lead, inevitably resulting in environmental and biocompatibility issues. Replacing PZT with lead-free piezoelectric materials in various ultrasonic devices is considered challenging mainly due to the inferior piezoelectric properties lead-free materials possess compared to those of PZT. In this study, through both experiments and numerical simulations, it is demonstrated that the performance of the bulk-wave-acoustofluidic devices driven by... (More)
- Bulk-wave-acoustofluidic devices provide strong acoustic fields and high device efficiency, thereby offering high-throughput capability when processing biological samples. Such devices are typically driven by lead zirconate titanate (PZT) transducers, which contain a high content of lead, inevitably resulting in environmental and biocompatibility issues. Replacing PZT with lead-free piezoelectric materials in various ultrasonic devices is considered challenging mainly due to the inferior piezoelectric properties lead-free materials possess compared to those of PZT. In this study, through both experiments and numerical simulations, it is demonstrated that the performance of the bulk-wave-acoustofluidic devices driven by (Bi,Na)TiO3-BaTiO3-(Bi,Na)(Mn,Nb)O3 (BNT-BT-BNMN) can match that of PZT-driven devices at low power and is superior at intermediate power. It is found that the low acoustic impedance and the weak transverse mode in BNT-BT-BNMN compensate for the inferior piezoelectric properties at low power. The fact that the BNT-BT-BNMN devices outperform at intermediate power is consistent with the superior performance of the Mn-doped BNT-based piezoelectric materials compared to PZT at high power. Perfect focusing on 5-µm-diameter polystyrene particles at a flow rate of up to 10 mL min^-1 is achieved using the BNT-BT-BNMN device at input power of 1 W. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/143dec14-460e-4b69-a825-517117909889
- author
- Qiu, Wei
LU
- organization
- publishing date
- 2025
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Small
- volume
- 21
- issue
- 10
- article number
- 2407453
- pages
- 10 pages
- publisher
- John Wiley & Sons Inc.
- external identifiers
-
- pmid:39580682
- scopus:85210008603
- ISSN
- 1613-6829
- DOI
- 10.1002/smll.202407453
- language
- English
- LU publication?
- yes
- id
- 143dec14-460e-4b69-a825-517117909889
- date added to LUP
- 2024-11-27 23:02:23
- date last changed
- 2025-06-11 13:32:42
@article{143dec14-460e-4b69-a825-517117909889,
abstract = {{Bulk-wave-acoustofluidic devices provide strong acoustic fields and high device efficiency, thereby offering high-throughput capability when processing biological samples. Such devices are typically driven by lead zirconate titanate (PZT) transducers, which contain a high content of lead, inevitably resulting in environmental and biocompatibility issues. Replacing PZT with lead-free piezoelectric materials in various ultrasonic devices is considered challenging mainly due to the inferior piezoelectric properties lead-free materials possess compared to those of PZT. In this study, through both experiments and numerical simulations, it is demonstrated that the performance of the bulk-wave-acoustofluidic devices driven by (Bi,Na)TiO3-BaTiO3-(Bi,Na)(Mn,Nb)O3 (BNT-BT-BNMN) can match that of PZT-driven devices at low power and is superior at intermediate power. It is found that the low acoustic impedance and the weak transverse mode in BNT-BT-BNMN compensate for the inferior piezoelectric properties at low power. The fact that the BNT-BT-BNMN devices outperform at intermediate power is consistent with the superior performance of the Mn-doped BNT-based piezoelectric materials compared to PZT at high power. Perfect focusing on 5-µm-diameter polystyrene particles at a flow rate of up to 10 mL min^-1 is achieved using the BNT-BT-BNMN device at input power of 1 W.}},
author = {{Qiu, Wei}},
issn = {{1613-6829}},
language = {{eng}},
number = {{10}},
publisher = {{John Wiley & Sons Inc.}},
series = {{Small}},
title = {{High-Performance and Environmentally-Friendly Bulk-Wave-Acoustofluidic Devices Driven by Lead-Free Piezoelectric Materials}},
url = {{http://dx.doi.org/10.1002/smll.202407453}},
doi = {{10.1002/smll.202407453}},
volume = {{21}},
year = {{2025}},
}