Heraeus, Sunrise collaborate on paste research for PERC cells


Heraeus Photovoltaics and Taiwanese PV manufacturer Sunrise Global Solar Energy this week announced a joint development deal at the PV Taiwan expo, which kicked off Wednesday in Taipei.

The two companies will collaborate on research efforts for the design and formulation of front-side metallization pastes for high efficiency passivated emitter rear contact (PERC) solar cells. Heraeus has also opened a new facility in the country to manufacture front-side metallization paste.

Heraeus and Sunrise – part of Taiwan’s Sino-American Silicon Products Inc. (SAS) – are working together to customize Heraeus' paste formulation to Sunrise's CELCO solar cell and optimize the metallization process to maximize the cell's output. Sunrise CELCO technology, a combination of PERC method and proprietary know-how developed by Sunrise, has already achieved peak cell efficiency of 21.5% in mass production of p-type monocrystalline cells. The company is now aiming to push average cell efficiency to 21%.

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The partnership will leverage Heraeus’ track record in accelerating development from the research lab to the real world, according to the companies. "Achieving maximum performance from cell designs cannot occur from innovation alone, which is why we relentlessly focus on a rapid R&D and commercialization strategy,” said Weiming Zhang, Heraeus’ senior vice president of Research and Development. “We're very excited to partner with Sunrise to jointly develop front-side metallization pastes and to advance future performance of their PERC product line because they share that same fast-track mindset."

In customizing Heraeus's SOL9621 Series of front-side metallization pastes for Sunrise's PERC cells, the companies aim to increase their output and improve other performance parameters for customers worldwide.

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