GT Solar nears monocrystalline Si performance with multicrystalline production

Researchers at Georgia Institute of Technology have demonstrated average cell efficiencies of 18.8% with highest efficiencies exceeding 19% on monocast silicon material grown in an advanced ingot casting furnace by GT Solar.

April 11, 2011 – BUSINESS WIRE — Researchers at Georgia Institute of Technology have demonstrated average solar cell efficiencies of 18.8% with highest efficiencies exceeding 19% on monocast silicon material grown in an advanced ingot casting furnace by GT Solar International Inc. (NASDAQ: SOLR), a global provider of polysilicon production technology, and sapphire and silicon crystalline growth systems and materials for the solar, LED and other specialty markets.

“The results of our recent cell efficiency tests using monocast material provided by GT are well above the best large-area, screen-printed monocast material reported to-date,” said Dr Ajeet Rohatgi, Regents Professor and Director of Georgia Institute of Technology’s Center of Excellence for Photovoltaic Research and Education.

“Our advanced technology team and material scientists have been focused on balancing casting furnace architecture with refined process techniques to produce material that demonstrates near monocrystalline silicon performance and leverages the low cost advantages of multicrystalline production. These recent results indicate we are making great progress in achieving this goal and we fully expect to offer this for commercial availability later in the year,” said Tom Gutierrez, president and CEO of GT Solar. 

GT continues to develop advanced crystallization growth technology that improves ingot quality and delivers value to its customers. When fully commercialized, the monocast crystalline growth technology will help PV manufacturers lower their costs and make solar technology more cost competitive with other forms of energy.

GT Solar International Inc. is a global provider of polysilicon production technology, and sapphire and silicon crystalline growth systems and materials for the solar, LED and other specialty markets. For additional information about GT Solar, visit www.gtsolar.com.

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