Please use this identifier to cite or link to this item: https://doi.org/10.1039/c2nr32185h
Title: Evaluation of piezoelectric property of reduced graphene oxide (rGO)-poly(vinylidene fluoride) nanocomposites
Authors: Alamusi
Xue, J. 
Wu, L.
Hu, N.
Qiu, J.
Chang, C.
Atobe, S.
Fukunaga, H.
Watanabe, T.
Liu, Y.
Ning, H.
Li, J.
Li, Y.
Zhao, Y.
Issue Date: 2012
Source: Alamusi, Xue, J., Wu, L., Hu, N., Qiu, J., Chang, C., Atobe, S., Fukunaga, H., Watanabe, T., Liu, Y., Ning, H., Li, J., Li, Y., Zhao, Y. (2012). Evaluation of piezoelectric property of reduced graphene oxide (rGO)-poly(vinylidene fluoride) nanocomposites. Nanoscale 4 (22) : 7250-7255. ScholarBank@NUS Repository. https://doi.org/10.1039/c2nr32185h
Abstract: We improved the piezoelectric property of poly(vinylidene fluoride) (PVDF) by employing graphene. The reduced graphene oxide (rGO)-PVDF nanocomposites were prepared by a solution casting method and the rGO contents ranged from 0.0 wt% to 0.2 wt%. To induce the piezoelectric β-phase crystal structure, the nanocomposite films were drawn in a ratio of 4-5 and polarized by a step-wise poling method. To evaluate the piezoelectric property, the output voltages of the rGO-PVDF nanocomposite films were measured through extensive experimental vibration tests. The experimental results show that the rGO-PVDF nanocomposite film with 0.05 wt% rGO loading possesses the highest output voltage compared with other loadings, which is around 293% of that of the pure PVDF film. Moreover, it can be found that with the increase of the rGO content from 0 wt% to 0.2 wt%, the output voltage tends to have a peak at 0.05 wt%. The main reason for this phenomenon is that a more β-crystalline phase can be formed at those rGO loadings, as confirmed by XRD and FT-IR spectrum analyses. © 2012 The Royal Society of Chemistry.
Source Title: Nanoscale
URI: http://scholarbank.nus.edu.sg/handle/10635/64869
ISSN: 20403364
DOI: 10.1039/c2nr32185h
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