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May 30th, 2014
 
Swedish Midsummer increases its CIGS solar cell efficiency
 
Midsummer, a supplier of production lines for cost effective manufacturing of flexible thin film CIGS solar cells, announces that it has increased the efficiency of its solar cells from 15 per cent to 16.2 per cent aperture area of the full 156×156 mm solar cell.
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DUO Solar Cell Manufacturing Equipment.
DUO Solar Cell Manufacturing Equipment.
The efficiency of its Cd-free CIGS solar cells has been increased from 15 per cent to 16.2 per cent aperture area of the full 156×156 mm solar cell.

This increased energy efficiency further strengthens the business case and attractiveness of thin film CIGS solar cells.

The solar cell was manufactured in a regular production run and the process is already implemented in the production line.

Considering that the solar cell is made on stainless steel, contains no cadmium and that the production process is an all-dry, all vacuum process where all layers (including the buffer layer) are deposited by sputtering, this achievement by our engineers is truly impressive,” said Sven Lindström, CEO Midsummer.

With the production system from Midsummer the solar cells are manufactured individually and then stringed together into modules just like crystalline solar cells. This way, lightweight flexible modules can easily be made in any size and shape.

A dry, all-vacuum process has less stringent requirements for clean-rooms. Avoiding cadmium in the manufacturing process is desirable for the sake of the production staff and also makes it easier to commence low cost manufacturing of CIGS solar cells.


 
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