A fully packaged hemispheres-array-structured triboelectric nanogenerator (H-TENG) that can endure severe environments is reported. The hemispheres-array-structure plays a dual role as the triboelectric material and an elastic “spring” to keep the two opposite materials separated for inducing the electrostatic effect during contact-separation cycle. H-TENGs can be applicable as an active self-powered sensor array to detect the distribution of external pressure.
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Lee et al. (2016) studied this question.
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