Alternative energy: A new way to take a bite of sunlight

Oct 02, 2006

Flash those pearly whites in a dazzling smile and you showcase a natural light collector mechanism hidden inside the internal structure of dentin - the hard, bone-like material that forms the main part of teeth.

Scientists in Germany are reporting that the photonic crystal structure of dentin was their inspiration to propose a new method for harvesting sunlight to produce electricity.

Andrei P. Sommer and Michael Gente say tooth structure bears similarities to photonic crystals, which allow certain wavelengths to enter their internal structure, but block others. Applications of the effect include harvesting sunlight for photovoltaic cells.

"The light-collector mechanism in dentin could serve as a model for the design of solar concentrator arrays," the researchers write in their paper, published in the current (September/October) edition of the bimonthly ACS journal Energy & Fuels.

"Arrays of tooth-like structures mounted on silicon permit collection of sunlight virtually independent of the angle of incidence of the sun, which could be vital, for instance, in Antarctica."

Source: American Chemical Society

Explore further: New technique reveals immune cell motion through variety of tissues

add to favorites email to friend print save as pdf

Related Stories

Recommended for you

'Global positioning' for molecules

Dec 19, 2014

In everyday life, the global positioning system (GPS) can be employed to reliably determine the momentary location of one en route to the desired destination. Scientists from the Institute of Physical and ...

User comments : 0

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.