At the present time, the price of the raw materials cadmium and tellurium are a negligible proportion of the cost of CdTe solar cells and other CdTe devices. However, tellurium is an extremely rare element (1-5 parts per billion in the Earth's crust; see Abundances of the elements (data page)), and if CdTe were to be used in sufficiently large quantities (for example, to make enough solar cells to provide a significant proportion of worldwide energy consumption), tellurium availability could be a serious problem.
more read : Cadmium telluride
没有评论:
发表评论