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Date: 2012-07-11
German precious metals specialist Heraeus continues to focus on improving the value of their customers' solar cells by reducing the silver content and usage per cell of their pastes for front-side and back-side applications while improving the cells' efficiency.
According to Andy London, Global Manager of Heraeus Photovoltaics, "Heraeus develops front-side and back-side pastes that lower the silver content per cell. Front-side silver paste has become an increasing cost in the production of crystalline solar cells as silver bullion prices have escalated to historic highs. Heraeus addresses the need to reduce that cost by producing silver pastes that allow for up to 40% reduction in silver usage."
London says, "Heraeus SOL9600, our current new product for the front-side, prints finer lines thus reducing silver usage and increase efficiency due to less shading. Heraeus SOL205S, our current product for the back-side, is produced using 52% silver content, further reducing silver usage on the cell. Heraeus SOL315, our current product for passivated emitters has a silver content significantly less than standard pastes." London also says
"Silver bullion prices have eased over the last nine months, as increased silver bullion production has resulted in an oversupply. Whether this is a permanent situation or not, Heraeus will continue in the direction of reducing the silver usage in cells." (Source: Heraeus, PR, July 10, 2012) Contact: Heraeus Precious Metals North America Conshohocken LLC
Photovoltaics Business Unit,
David McMullen, Marketing and Business Development,
(610) 825-6050,
[email protected], www.heraeus.com, www.pvsilverpaste.com
Tags Heraeus news,
Date: 2012-07-05
Industry leader showcases new low activity silver paste for new passivation layer cell designs, an advance cell design that helps improve a cell's efficiency The Heraeus Photovoltaics Business Unit will feature their latest pastes for conventional and advanced cell designs at this year's Intersolar North America 2012, July 10th-12th in San Francisco. One of the products highlighted will be SOL315, low silver content paste for new passivation layer cell designs, an advance cell design that helps improve a cell's efficiency.
SOL315 can be used for front-side and backside applications. When SOL315 is screen printed and fired onto passivated silicon wafers, it does not penetrate the passivation layer. SOL315 enables a significant reduction of charge carrier recombination on passivated c-Si wafer surfaces, where good adhesion is required but contact formation is undesired. SOL315 can be used as a floating busbar on the front-side of c-Si cells. As back-side soldering pads, SOL315 possesses high mechanical adhesion on dielectric layers, excellent soldering compatibility, easy printability and lower paste consumption go to.
(Source: PR, Heraeus, July 2, 2012) Contact:Heraeus Precious Metals GmbH Co. KG Photovoltaics Business Unit, Verena Klotz, Marketing, + 49 (6181) 35-3544, [email protected], www.heraeus.com,
www.pvsilverpaste.com
Tags Heraeus Photovoltaics news,
Date: 2012-06-13
The Heraeus Photovoltaics Business Unit, a developer and manufacturer of silver metallization pastes, is introducing its new SOL9600 Series of front-side metallization pastes at the Intersolar Europe 2012 Exhibition in Munich, Germany this week. The SOL9600 Series of pastes is touted as a significant improvement over the company's SOL9235 and SOL9411 pastes. Along with higher efficiency, the SOL9600 Series offers a wider processing window due to its uniformity in contact resistance on wafers with substantial variations in sheet resistance. The new Heraeus SOL9600 Series for conventional c-Si solar cells has demonstrated up to a 35% decrease in contact resistance on regular and high sheet emitter wafers and an absolute efficiency improvement of up to 0.3%. As with all Heraeus metallization pastes, the SOL9600 series offers a wider processing window during firing, which provides a tighter production output distribution and improves yields. The SOL9600 Series is ideal for applications requiring higher efficiency and finer line resolution printing. More information can be found at www.pvsilverpaste.com. (Source: Heraeus, PR, 11 June, 2012) Contact:s Heraeus Precious Metals GmbH Co. KG Photovoltaics Business Unit, Verena Klotz, Marketing, + 49 (6181) 35-3544, [email protected], www.heraeus.com
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Date: 2012-04-24
Yingli Green Energy Holding Company Limited , a global vertically integrated photovoltaic manufacturer, and the precious metals and technology group Heraeus, have signed a $70 million cooperation and supply agreement. The Heraeus Photovoltaic Business Unit, a developer of front and back-side silver paste for crystalline solar cells, will work with Yingli Green Energy to achieve significant photovoltaic technology advancements, specifically to reduce the cost-per-watt of solar cells to a new industry benchmark.
Under this one-year agreement, Heraeus will dedicate R&D resources in its 3 technology centers located in West Conshohocken (USA), Hanau (Germany) and Singapore to develop state-of-the-art silver metallization pastes for Yingli's high efficiency N-type silicon solar cells, tagged PANDA.
(Source: Yingli Green Energy Holdings, April 24, 2012)
Contact: Helena Kimball, Marketing Communications, Yingli Green Energy Americas, (510) 847-3920, www.yinglisolar.com; Heraeus Precious Metals North America Conshohocken LLC, David P. McMullen, PV Business Unit, (610) 825-6050, [email protected], www.heraeus.com
Tags Heraeus news, Yingli Green Energy news,
Date: 2012-02-03
Scientists of the Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE) developed a crystalline solar cell with efficiency greater than 20% using Heraeus metallization paste. The record cell is based on the combination of two cell design technologies: Metal Wrap Through(MWT) and Passivated Emitter and Rear Cell (PERC). The combination of these two technologies creates a cell design that significantly increases a solar cell's efficiency relative to conventional solar cell technologies. In a joint research project with the Fraunhofer ISE, Heraeus has developed a via paste, which interconnects the front- and back-side of the MWT solar cell. Heraeus also supplied the front-side paste for this project.
Heraeus offers pastes that are specially formulated to be used for novel cell design technologies, such as the MWT-PERC-concept. There is a broad range of different pastes for the front-side and back-side metallization of conventional crystalline solar cells available. In 2011 Heraeus introduced a new series of pastes for low temperature processing. (Source: Heraeus, January 31, 2012)
Contact: Heraeus Precious Metals North America Conshohocken LLC, David P. McMullen, PV Business Unit, (610) 825-6050, [email protected], www.heraeus.com; Fraunhofer ISE, Karin Schneider, +49 761 4588-5150, www.ise.fraunhofer.de
Tags Fraunhofer Institute news, Heraeus news,
Date: 2011-09-07
DuPont filed a lawsuit against Heraeus Holding GmbH and Heraeus Materials Technology, LLC for allegedly infringing a DuPont patent related to its front-side metallization paste materials used in solar cell technology. DuPont alleges that Heraeus has infringed DuPont U.S. Patent No. 7,767,254 B2, by manufacturing solar cells and inducing its customers to manufacture solar cells, using Heraeus H94XX series and H92XX series front-side silver pastes.
DuPont plays a key role in enabling growth in the solar energy market by providing advanced materials and process technology. The DuPont™ Solamet® product line is the leading technology for metallization in crystalline silicon and thin film solar cells, and has been instrumental in the gains in efficiency of solar power.
DuPont™ Solamet® photovoltaic metallizations are part of a broad and growing portfolio of products represented by DuPont Photovoltaic Solutions (DPVS), which connects science and technology from across the company on a global scale to help support growth in the photovoltaic industry.
DuPont DD -2.32% has been bringing world-class science and engineering to the global marketplace in the form of innovative products, materials, and services since 1802. The company believes that by collaborating with customers, governments, NGOs, and thought leaders we can help find solutions to such global challenges as providing enough healthy food for people everywhere, decreasing dependence on fossil fuels, and protecting life and the environment.(Source; DuPont, September, 2, 2011)
Contact: David B. Miller, President,Electronics & Communications, DuPont , (302) 774-1000, http://photovoltaics.dupont.com; Rainer Kuchler, Managing Director, Heraeus Noblelight, +49 (0) 6181 35-8492, www.heraeus-noblelight.com
More Energy Overviews DuPont news, Heraeus news,
Date: 2011-07-27
Four German companies, Avancis, Singulus Technologies, Heraeus Noblelight and the IfG Institute for Scientific Instruments, have joined forces on the Photovoltaics Innovations Alliance (PIA) CIS Cluster Tool project. The project aims to develop new manufacturing procedures for CIS semiconductors panels in order to produce high-efficiency thin-film solar modules. With a three-year, €2.9 million investments from the PIA and contributions from participating companies, the consortium plans to develop an industrial manufacturing process based off findings from a planned demonstration plant.
New plant concepts and processes, full process chains and in-situ analytics will be the main focus of the companies during the tool cluster project. Under the new plant concepts and processes objective, research of innovative rapid thermal processing (RTP) plant concepts and processes, which can be applied on an industrial-scale and are in-line capable will be investigated so that high efficiency in short cycle times can be achieved.(Source: PVTech, July, 25, 2011)
Contact: Dr. Aniouar Bjeoumikhov, Managing Director, IfG Institute for Scientific Instruments,+49 (0)30 - 6392 6500, www.ifg-adlershof.de; Hartmut Fischer, CEO, Avancis, +49 (0) 3421 7388-0, www.avancis.de/en/;Bernhard Krause, Singulus Technologies, +49 [0]6181-98280-20, www.singulus.de; Rainer Kuchler,
Managing Director, Heraeus Noblelight, +49 (0) 6181 35-8492, www.heraeus-noblelight.com
More Energy Overviews Semiconductor news, Thin-Film Solar news,