Growing solar cells on plants

Plants can track the sun with their leaves or flowers, a phenomenon called Heliotropism. A good example for this is the sunflower, where the flowers facing east in the morning and follow the suns movement from east to west over the course of the day. From the other side of the spectrum, solar cells and specifically organic solar cells become extremely small and light. An idea brought by Eviatar Tron, why not to use plants as a solar tracking device and put solar cells on them? In this session we will briefly learn how heliotropism works and brain storm on the possibility to harness this behavior of nature to our needs or the ways to efficiently mimic this behavior.