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. 2008:41:162001.
doi: 10.1088/0022-3727/41/16/162001.

Nano-structured TiO(2) film fabricated at room temperature and its acoustic properties

Jie Zhu  1 , Wenwu Cao, Bei Jiang, D S Zhang, H Zheng, Q Zhou, K K Shung
Affiliations

Nano-structured TiO(2) film fabricated at room temperature and its acoustic properties

Jie Zhu et al. J Phys D Appl Phys. 2008.

Abstract

Nano-structured TiO(2) thin film has been successfully fabricated at room temperature. Using a quarter wavelength characterization method, we have measured the acoustic impedance of this porous film, which can be adjusted from 5.3 to 7.19 Mrayl by curing it at different temperatures. The uniform microstructure and easy fabrication at room temperature make this material an excellent candidate for matching layers of ultra-high frequency ultrasonic imaging transducers.

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Figures

Figure 1
Figure 1
(a) SEM micrograph of the TiO2 nano-structured film shows the size of TiO2 particle around 25 nm. (b) The histogram showing the particle size distribution.
Figure 2
Figure 2
Received signal spectra ratios, |G(f)/H(f)|, for an 8µm film on a 6mm thick glass substrate. The peak shifts to higher frequencies after higher temperature annealing.
Figure 3
Figure 3
Power transmission efficiency spectra of a 100MHz transducer with single matching layer using different materials. The DFK model curve was generated using the acoustic impedance of Z=Zc1/3Zm2/3
See this image and copyright information in PMC

References

    1. Xiang SH, Zhang YT. Proc. IEEE 17th EMBS; Montreal, Canada. 1995. p. 623.
    1. Goll JH, Auld BA. IEEE Trans. Son. Ultrason. 1975:52. SU-22.
    1. DeSilets CS, Fraser J, Kino GS. IEEE Trans. Son. Ultrason. 1978:115. SU-25.
    1. Zhou QF, Cha JH, Huang Y, Zhang R, Cao W, Cannata JM, Shung KK. Proc. IEEE Ultrasonics Symp.; Vancouver, Canada. 2006. p. 2365.
    1. Lockwood GR, Turnbull DH, Christopher A, Foster FS. IEEE Eng. Med. Biol. Mag. 1996;15:60.

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