environment team eco friendly gallery

Efficient and Flexible solar cells from Nanopillars


From Nanopillars!

Nano what?

Nanopillars… these are an optically active arrangement of semiconductors designed in arrays of nanoscale pillars from low-cost and flexible material, each a single crystal with dimensions measured in billionths of a meter.

Tell me about solar cells too…

A solar cell’s basic job is to convert light energy into charge-carrying electrons and ‘holes’ (the absence of an electron), which flow to electrodes to produce a current.

Why bother?

To take advantage of abundant solar energy in nature we need to be able to mass-produce efficient solar cells…Unlike a typical two-dimensional solar cell, a nanopillar array offers much more surface for collecting light. Therefore a nanopillar arrangement is,

  1. More sensitive to light
  2. Has a greatly enhanced ability to separate electrons from holes
  3. And is a more efficient collector of these charge carriers
flexible solar cells made from nanopillars

An image of the flexible solar cell made from nanopillars. (Credit: Lawrence Berkeley National Laboratory)

Who is involved?

Researchers at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory and the University of California at Berkeley.


Please contact us if the credits are inaccurate or need to be changed.

Share on Facebook! Tweet This! Digg it! Add to Delicious! Stumble it
Environment Team � Green Technology Blog - Blogged Green Top Sites - Ranking the Best Green Sites on the Internet