<< <  Page 10 of 10


Jun 22, 2013
Category: Science
Posted by: turpentyne
The efficient conversion of sunlight into useful energy is one a challenges standing in the way of meeting increasing energy demands worldwide - in a clean, sustainable way that does not rely on fossil fuels. Photosynthetic organisms, such as plants and some bacteria, have mastered this process: In less than a couple of trillionths of a second, 95 percent of the sunlight they absorb is whisked away to drive the metabolic reactions that provide them with energy. The efficiency of photovoltaic cells currently on the market is around 20 percent. What hidden mechanism does nature use to transfer energy so efficiently?