Researchers
have created a thin-film triboelectric sensor which uses a polymer-nanowire-decorated
triboelectric-negative polymer surface to achieve ultrasensitive tactile
sensing. The device harnessed the triboelectric charges generated in the polymer
surface upon contact with a foreign object to generate an output voltage. The sensor retained its functionality even
when applied to a curved surface. Demonstrated
applications included various alarm systems powered by touch alone. Approach also offers possibilities for electronic-skin-type
technologies.
Self-Powered,
Ultrasensitive, Flexible Tactile Sensors Based on Contact Electrification; G.
Zhu et al, Nano Letters;
dx.doi.org/10.1021/nl5005652
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