Triboelectric Nanogenerator(TENG) – UPSC Prelims

Triboelectric Nanogenerator(TENG)? 
  • A triboelectric nanogenerator(TENG) is a self-powered device. It makes use of mechanical energy in the form of vibrations, which is present everywhere in different forms to generate electricity.
  • Working:
    • It works on the principle of creation of electrostatic charges via instantaneous physical contact of two dissimilar materials.
    • It is followed by generation of potential difference when a mismatch is introduced between the two contacted surfaces through a mechanical force.
    • This mechanism drives the electrons to move back and forth between the conducting films coated on the back of the tribo layers.
  • Technique used: The device was developed using the simpler doctor’s blade technique along with polyethylene terephthalate(PET) as tribo layers.
  • Doctor’s blade technique is one of the widely used techniques for producing thin films on large area surfaces.
  • Significance: The device could light up 11 LEDs by gentle hand tapping and could be a potential candidate for use in optoelectronics, self-powered devices and other biomedical applications.
  • Optoelectronics is the field of technology concerned with electronic device application to the sourcing, detection and control of light.
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