I am a sucker for data visualization graphics, especially if the data being visualized is related to energy innovation.
Needless to say, I was thrilled to discover a dynamic mapping of the geographic history of thin-film solar cell innovation developed by researchers at the University of Amsterdam.
A photovoltaic cell consists of two or more layers of semi-conducting material, most commonly silicon. When the material is exposed to light, electrical charges are generated and conducted away by metal contacts as direct current. The electrical output from a single cell is small, so multiple cells are connected together and encapsulated (usually behind glass) to form a module or panel.