Based on extensive research and development, Topsil has developed a state of the art float-zone technology to manufacture high lifetime PV-FZ™ for the PV industry. PV-FZ™ is commonly used in R&D programmes and as reference material for line yield management, eliminating silicon material impact on cell performance variation.

The PV-FZ™ silicon enables solar cell manufacturers to achieve more than 20% efficiency in both R&D facilities and in volume production. Major solar cell manufacturers have confirmed that PV-FZ™ is their preferred substrate for making high efficiency solar cells.

Float Zone silicon has generated the highest efficiencies ever measured for silicon solar cells. PV-FZ™ silicon will set new standards in terms of efficiency and stability of silicon solar cells modules. PV-FZ™ will enable silicon solar cell manufacturers to achieve more than 20% efficiency in production.

The PV-FZ™ silicon is available in both n- and p-type products. Both of them will have superior performance to Czochralski grown silicon, which is presently the preferred mono crystalline silicon material for PV applications.

PV-FZ™ solar grade material meet all of the requirements for future PV modules: 

• High minority carrier lifetime,  >1ms
• Low levels of performance degrading impurities, Oxygen and Metals
• Tight resistivity tolerances, +/- 20%
• Predictable and stable efficiency output
• Competitive to solar grade Czochralski silicon based solar cells in terms of Cost per Wp
• Short life cycle cost relative to any other silicon PV material

Topsil is a world leading supplier of Float Zone silicon for a number of applications. Extensive research and development has made it possible for Topsil to develop a state of the art Float Zone process which enables a major break through of the utilisation of Float Zone silicon in the PV industry. Topsil Semiconductor Materials A/S

Product specifications: PV-FZ datasheet

PV-FZ application note: Please contact Topsil