BME Frontiers / 2022 / Article / Tab 2

Review Article

Recent Advancements in Ultrasound Transducer: From Material Strategies to Biomedical Applications

Table 2

Performance summary of representative optoacoustic transducers.

Light absorption materialsTransducer’s aperture size (mm) (μm)CF (MHz)-6 dB BW (%)(×10-2) (MPa) (mm)Pulse laser parametersReference
(mJ/pulse) (ns)

Au0.02~80~1801.505[74]
CSNP~106102100.441+4.8/-14.23.576[75]
CNTs-xylene0.22~128.5~14012.230.012[76]
CNTs-yarn10~511.81792.74+33.6/-105455[6]
CNT array51820.21520.251+8.82105[77]
Functionalized CNTs2.838~1001711.6900.03[35]
MAPbI350.3429.21402.97+15/-10235[10]

Note: : transducer thickness; CF: center frequency; BW: bandwidth; : optoacoustic energy conversion efficiency; : optoacoustic pressure; : the distance of hydrophone and transducer; : the energy and width of pulse laser.