Sign In
Learn bits
Science & Tech.
Pradeep Kumar

27/06/21 10:20 AM IST

Cost-effective, bio-compatible nanogenerators

In news

Scientists have fabricated a simple, cost-effective, bio-compatible, transparent nanogenerator that can generate electricity from vibrations all around for use in optoelectronics, self-powered devices, and other biomedical applications.

Highlights
  • Searching for renewable energy resources with reduced carbon emissions is one of the most urgent challenges due to the increasing threat of global warming and energy crisis.
  • Some of the unconventional methods to generate electricity include piezoelectric, thermoelectric, and electrostatic techniques used in devices like touch screens, electronic displays, and so forth.
  • The triboelectric nanogenerators (TENG) make use of mechanical energy in the form of vibrations present everywhere in different forms to generate electricity. 
  • The fabricated device could light up eleven LEDs by gentle hand tapping and could be a potential candidate for use in optoelectronics, self-powered devices, and other biomedical applications.
Mechanism 
  • The energy harvesting TENG works on the principle of creation of electrostatic charges via instantaneous physical contact of two dissimilar materials 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.
  • The method employed till date to design TENG use expensive fabrication methods like photolithography or reactive ion etching, and additional process like electrode preparation and so on.
Source: PIB

More Related Current Affairs View All

21 Sep

India Achieves Tier 1 Status in Global Cybersecurity Index 2024

' India has secured Tier 1 status in the Global Cybersecurity Index (GCI) 2024, published by the International Telecommunication Union (ITU).' The GCI is a comprehensive assessm

Read More

21 Sep

A new White Revolution

'Operation Flood, launched in 1970, ushered in the White Revolution and transformed the dairy sector in India.' Dairy cooperatives procured 660 lakh kg of milk per day in 2023-2

Read More

21 Sep

Changes in Canada’s international work permit system

'Canadian Prime Minister Justin Trudeau announced changes to the country’s international work permit system, aiming to reduce the number of immigrant workers in Canada.'

Read More

India’s First Ai-Driven Magazine Generator

Generate Your Custom Current Affairs Magazine using our AI in just 3 steps