A Japanese institute and firms prototyped a foliage plant-like solar cell module by using organic thin-film solar cells.

A leaf-like module featuring bright green solar cells was developed by National Institute of Advanced Industrial Science and Technology (AIST), Mitsubishi Corp and Tokki Corp.

The organic thin-film solar cell consists of a plastic substrate, phthalocyanine layer, fullerene layer and so forth. And eight 7.5cm2 solar cells connected in series constitute about 60cm2 solar cell module.