XsunX announces start of CIGSolar CIS processing

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California-based XsunX has announced it has begun processing CIS films with its recently completed CIGSolar thin-film PV solar cell evaporation system.

The company finished building the manufacturing system in October last year and says it offers a capital-efficient, low-cost alternative to the use of silicon solar cells.

“Recently we initiated the last phase necessary for preparing our CIGSolar TFPV solar cell evaporation system for customer demonstrations with the initiation of CIS (copper indium and selenium) film processing,” said Tom Djokovich, CEO of XsunX.

“This represents a major step forward and allows us to then transition to CIGS (copper indium gallium and selenium) films and the completion of the system's readiness for demonstrations.”

The company’s patent-pending technology is said to use multi-small area thermal co-evaporation technology to deposit the CIGS solar absorber onto thin stainless steel substrates. The stainless steel substrate can be sized to match silicon solar cells for use as a low cost alternative to silicon solar cells. In addition, the flexible aspect of the stainless steel substrate could also be used in applications where flexibility is required such as building-integrated PV (BIPV) applications.

According to analysts, markets for BIPV installations are predicted to grow by US$5 billion over the next two years. The flexibility of CIGSolar cells could offer BIPV manufacturers the potential to use cells manufactured using the CIGSolar process in their products, opening up new market opportunities for XsunX. With the closure of some thin film manufacturers and scaling back of production with others, the company claims it has begun to receive inquiries related to BIPV applications for CIGSolar cells.

“There was a lot of buzz over CIGS PV that began to develop in 2009 and grew into 2010,” stated Djokovich.

“But with the rapid decline in silicon pricing, many companies focused on producing products to compete with silicon module assemblers have either closed or sold out.

Djokovich continued, “XsunX took a different approach with CIGSolar. Rather than develop a product that attempts to compete with assemblers of silicon solar modules, which is a business path that has seen the demise of numerous thin-film companies such as Solyndra, XsunX's CIGSolar is designed to offer pre-existing silicon module assemblers a lower cost replacement to silicon.

“Our business objective is to leverage the many GW of existing assembly capacity in the market – not compete with it. Now it appears that the flexibility of our stainless steel substrates may also offer an alternative cell for BIPV assemblers as well. At this time, we are pleased to find interest in our CIGSolar technology coming from multiple areas in the solar market,” concluded Djokovich.

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