Spongy Nanogenerator
A Korean research team has succeeded in developing a technology for a nanogenerator that can operate via just pressure and produce 10 times as much power as conventional methods. Therefore, the newly-developed tech is expected to expedite the commercialization of nanogenerators.
According to Ulsan National Institute of Science and Technology on Aug. 20, one of its research teams headed by Baek Jung-min, professor of the School of Materials Science and Engineering, successfully developed a technique to make a nanogenerator that can produce power by pushing a silicon material. Power can be generated from static electricity by inserting metal nanoparticles into the porous structure.
Professor Baek explained, "Our research team solved the problems of existing static electricity-based nanogenerators, which need air bounds. So, it will be possible to use the new nanogenerator with a sponge structure for various purposes." He went on to say, "The new nanogenerator can produce 10 times as much power as existing ones that utilize thin films."
The professor noted, "Since the new nanogenerator does not require air bounds, it is easy to make the device in a large area. Furthermore, the new nanogenerator is flexible and durable. So, it can steadily generate a huge amount of power," adding, "It is also usable in different environments or conditions."
Using the new nanogenerator, the research team made a sensor that measures the distribution of pressure, a large-area mat that generates power by pedaling, and an auto charger.
Professor Baek also remarked, "The newly-developed nanogenerator can generate electricity from pressure that occurs when pressing or treading. Or, it is possible to produce energy using the wind or waves at sea." He concluded by saying, "The new one proved to be superior to existing ceramic-based nanogenerators. So, I think that our technology will speed up the commercialization of static electricity-based nanogenerators."
The research findings were first published online on Aug. 11 by Energy & Environmental Science, a monthly scientific journal published by the Royal Society of Chemistry.