AmorphousAmorphous cells are munufactured by placing a thin film of amorphous (non crystalline) silicon onto a wide choice of surfaces. These are the least effient and least expensive to produce of the three types. Due to the amorphous nature of the thin layer, it is flexible, and if manufactured on a flexible surface, the whole solar panel can be flexible.
One characteristic of amorphous solar cels is that their power output reduces over time, particularly during the first few months, after which time they are basically stable. The quoted output of an amorphous panel should be that produced after this stabalisation.
more info @ http://greentekindia.co.in/panelTypes.aspx