Power generation technology based on piezoelectric nanocomposite materials

May 07, 2012
Nanocomposite generator produces electricity. Credit: KAIST

Professor Keon- Jae Lee's research team, KAIST (Korea), has developed a nanocomposite-based nanogenerator that successfully overcomes the critical restrictions existed in previous nanogenerators and builds a simple, low-cost, and large-scale self-powered energy system. The team produced a piezoelectric nanocomposite by mixing piezoelectric nanoparticles with carbon-based nanomaterials in a polydimethylsiloxane matrix and fabricated the nanocomposite generator by the simple process of spin-casting or bar-coating method.

The team of Professor Keon Jae Lee from the Department of , KAIST, has developed new forms of low cost, large-area nanogenerator technology using the piezoelectric ceramic nanoparticles.

Piezoelectric effects-based nanogenerator technology that converts existing sources of nonpolluting energies, such as vibrational and mechanical energy from the nature of wind and waves, into infinite electrical energy is drawing immense interest in the next-generation energy harvesting technology. However, previous nanogenerator technologies have limitations such as complicated process, high-cost, and size-related restrictions.

This video is not supported by your browser at this time.

Recently, Professor Lee's research team has developed a nanocomposite-based nanogenerator that successfully overcomes the critical restrictions existed in previous nanogenerators and builds a simple, low-cost, and large-scale self-powered energy system. The team produced a piezoelectric nanocomposite by mixing piezoelectric with carbon-based (carbon nanotubes and reduced graphene oxide) in a polydimethylsiloxane (PDMS) matrix and fabricated the nanocomposite generator by the simple process of spin-casting or bar-coating method.

Professor Zhong Lin Wang from Georgia Institute of Technology, who is the inventor of the nanogenerator, said: "This exciting result first introduces a nanocomposite material into the self-powered energy system, and therefore it can expand the feasibility of nanogenerator in consumer electronics, ubiquitous sensor networks, and wearable clothes."

Explore further: New 'designer carbon' boosts battery performance

More information: The research result was published in the May online issue of the Advanced Materials journal as a cover paper.

Related Stories

Running Hamsters Can Power Nano Devices (Video)

Feb 12, 2009

(PhysOrg.com) -- Among the vast number of untapped energy sources are finger taps, heartbeats, and even hamsters running on exercise wheels. In a recent study, researchers from Georgia Tech have shown that ...

Nanogenerators for energy harvesting technology

Jul 09, 2010

The journal, Nano Letters, recently published an article highlighting the fascinating nanogenerators developed by Dr. Yong Shi, a professor in the Mechanical Engineering Department at Stevens Institute of Technology. The pa ...

New material could efficiently power tiny generators

Oct 22, 2009

(PhysOrg.com) -- To power a very small device like a pacemaker or a transistor, you need an even smaller generator. The components that operate the generator are smaller yet, and the efficiency of those foundational components ...

Recommended for you

New 'designer carbon' boosts battery performance

18 hours ago

Stanford University scientists have created a new carbon material that significantly boosts the performance of energy-storage technologies. Their results are featured on the cover of the journal ACS Central Sc ...

Self-replicating nanostructures made from DNA

May 28, 2015

(Phys.org)—Is it possible to engineer self-replicating nanomaterials? It could be if we borrow nature's building blocks. DNA is a self-replicating molecule where its component parts, nucleotides, have specific ...

Could computers reach light speed?

May 28, 2015

Light waves trapped on a metal's surface travel nearly as fast as light through the air, and new research at Pacific Northwest National Laboratory shows these waves, called surface plasmons, travel far enough ...

User comments : 1

Adjust slider to filter visible comments by rank

Display comments: newest first

flashgordon
not rated yet May 07, 2012
nano piezo's could lead to exciting things; this is a good sign that some of the recent mathematical modeling breakthroughs in nano piezo's works!(still waiting for some nano stm's!)

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.