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Hybrid thermoelectric piezoelectric generator
W. G. Cady, Piezoelectricity: An Introduction to the Theory and Applications of Electromechanical Phenonmena in Crystals, 2nd ed. ( Dover, 1964).
W. Zhao, S. Fan, N. Xiao, D. Liu, Y. Y. Tay, C. Yu, D. Sim, H. H. Hng, Q. Zhang, F. Boey, J. Ma, X. Zhao, H. Zhang, and Q. Yan, Energy Environ. Sci. 5, 5364 (2012).
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This work presents an integration of flexible thermoelectric and piezoelectric materials into a single device
structure. This device architecture overcomes several prohibitive issues facing the combination of traditional thermoelectric and piezoelectric generators, while optimizing performance of the combined power output. The structure design uses a carbon nanotube/polymer thin film as a flexible thermoelectric generator that doubles as an electrode on a piezoelectric generator made of poly(vinylidene fluoride). An example 2 × 2 array of devices is shown to generate 89% of the maximum thermoelectric power, and provide 5.3 times more piezoelectric voltage when compared with a traditional device.
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