Evonik Launches New Processing Aids For Improving Photovoltaic Wafer Cutting

• TEGO ® Surten E processing aids for solar industry debut in China
• Faster as well as better wafer cutting enables a lot more efficient and also
• cost-effective solar power

German speciality chemicals firm Evonik has actually introduced its new processing aids portfolio under the brand name TEGO ® Surten E in China. The company claims that new additives improve the performance and effectiveness of photovoltaic or pv (PV) wafer cutting, bring about far better overall performance and manufacturing effectiveness of solar modules.

With many countries, consisting of China, pledging their commitment to achieving carbon neutrality, better as well as more cost-effective utilization of renewable energy is vital. The Chinese solar industry, which has become the globe leading market accountancy for a majority of solar production, has actually been a vital factor for the global decrease in solar costs in addition to improving performance.

However, the economic competitiveness of present PV systems compared to other energy options remains to be a key metric for the future advancement of the sector. Solar module makers are looking for any opportunity to reduce production expenses while improving the conversion performance of solar cells to electricity.

Cutting silicon ingots with diamond wire saws (DWS) is a crucial action in the manufacturing of PV cells based on crystalline silicon. Cutting fluids with standard surfactants do not fulfill the requirements of the latest high-performance cutting process: Deep cut lines as well as divots brought on by inadequate swarf transport and destruction of the wire's diamond coating not just reduced wafer quality however can likewise lead to the development of large crystals throughout the succeeding diffusion step, reducing the surface area for photon capture leading to lower cell effectiveness.

" The recently released item series TEGO ® Surten E for the PV industry broadens our comprehensive ingredients portfolio for renewable energy production," said Benjamin Brehmer, Global Segment Manager Energy & Storage at Evonik's Interface & Performance business line, "These low-dose ingredients can significantly improve the quality and rate of PV wafer cutting, adding to a further progression when driving to a climate-neutral future."

TEGO ® Surten E wetting agents as well as defoamers aim to provide the appropriate balance of extremely reduced dynamic surface tensions and adhesion tendency to effectively eliminate cutting swarf. Evonik claims that cutting fluid formulations including a reduced dosage of TEGO ® Surten E can achieve a better cut quality ratio (a lot more A+ vs. A--) at greater cutting speeds utilizing smaller wire sizes, on ever larger wafers (M12). This results in a better financial balance with less pricey post-treatment restorative work required for cut wafers. The optimized formulation ensures a consistent cut quality on larger wafers leading to a considerable increase in general PV energy result.

Furthermore, the perfect wetting actions of TEGO ® Surten E products can be customized to especially operate under severe operation conditions, such as in circular systems, by improving the overall cooling performance of the fluid. This assists to preserve the durability as well as performance of the diamond wire, improving the effectiveness and sustainability of the whole process.

Evonik's TEGO ® Surten E surfactant portfolio can additionally work as a procedure additive in lots of associated and emerging PV applications, such as sustaining much more uniform as well as enhanced anti-reflective and reflective coatings, as well as other crafted surface modifications that improve general energy yield.

With solar production being pressed throughout more and more nations, especially India, Evonik definitely will see the chance in India quickly. The firm has been pushing its innovation for CBG (Compressed Bio Gas) plants currently.