Metallization Paste suits high temperature environments.

Press Release Summary:

Designed for mono- and multicrystalline silicon solar cells, SOL205B Back-Side Tabbing Paste optimizes Ag content and glass chemistry to provide consistent adhesion before and after high-temperature ageing. Product is typically dried in IR dryer with set point of 250–300°C in less than 20 seconds. With optimized busbar adhesion, paste contributes to module reliability.

Original Press Release:

Heraeus Introduces SOL205B and Improvements in SOL9621 Series at SNEC 2015

-- Heraeus customization enhances performance of products for customers

SHANGHAI -- The Heraeus Photovoltaics Global Business Unit, a worldwide leading supplier of metallization pastes for the photovoltaic industry, will introduce two new product modifications for front-side and back-side applications at the SNEC (2015) International Photovoltaic Power Generation Conference & Exhibition from April 28(th)  through April 30(th) , 2015 in Hall: W3 Booth: 660. 

The Heraeus SOL205B is a back-side tabbing paste for mono- and multicrystalline silicon solar cells.  This newest formulation optimizes the Ag content and glass chemistry to provide higher and consistent adhesion before and after high temperature ageing.  The SOL205B provides cell manufacturers with enhanced busbar adhesion and therefore improved module reliability. At the same time, the SOL205B has a lower silver content and paste usage per cell giving it an excellent performance to cost ratio. 

Heraeus' SOL9621 Series includes the latest product customizations from Heraeus' successful SOL9621 Series launched at last year's SNEC tradeshow. According to Dr. Weiming Zhang, "For many customers, we have created several improvements in the SOL9621 Series relative to the products we released in this series last year.  Alpha testing customers with LDE applications achieved up to 0.1% absolute higher cell efficiency.  This is due to the reduced contact resistance and stable contact formation.  The lower recombination leads to higher V(oc).  The latest versions of the SOL9621 Series also has improved printability with the demonstrated ability of ultra-fine line printing, suitable for screen openings less than 40 micron.  This paste is ideal for LDE single printing, double printing and PERC applications."  Several versions of the Heraeus SOL9621 Series are currently in mass production and are available in large volumes.

For more information, please visit Heraeus at this year's SNEC 9th (2015) International Photovoltaic Power Generation Conference & Exhibition, in Shanghai China at Hall: W3 Booth: 660.  You can also go to for more information.

About the Heraeus Photovoltaics Global Business Unit

The Heraeus Photovoltaics Global Business Unit is an industry leading developer and manufacturer of silver metallization pastes for the photovoltaic industry. For over 40 years, Heraeus has built a reputation of innovation, extensive research and new product development in thick film technologies for some of the most prominent companies within a variety of industries. In the field of photovoltaics, the Heraeus Photovoltaics Business Unit applies this history and its innovative technology to offer metallization pastes for solar cell applications. The Heraeus SOL Series of silver pastes is specially formulated to provide higher efficiencies and wider processing windows, resulting in better yields and higher output for cell manufacturers.

Heraeus, the technology group headquartered in Hanau, Germany, is a leading international family-owned company formed in 1851. We create high-value solutions for our customers, strengthening their competitiveness for the long term.  Our activities focus on a number of markets: chemical and metals, energy and the environment, communications and electronics, health, mobility, and industrial applications. In fiscal year 2013, Heraeus achieved product revenue of EUR3.6 billion and precious metals trading revenue of EUR13.5 billion. With some 12,500 employees in over 110 subsidiaries worldwide, Heraeus holds a leading position in its global markets.

CONTACT: For additional technical information, please contact:

Bill Gao

General Manager

Photovoltaics Business Unit

Heraeus Materials Technology

Shanghai Ltd.

No. 1 Guang Zhong Road, Zhuanqiao Town

Minhang District, 201108 Shanghai, People's Republic of China

Phone: + 86 (21) 3357-5688

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