US Natcore said that it is developing low-temperature production process for photovoltaic cells

The U.S.-based company Natcore Technology Inc. has recently unveiled a groundbreaking laser processing technology aimed at replacing the traditional high-temperature diffusion furnaces used in solar cell manufacturing. According to the company, this innovation is expected to significantly cut down on energy and chemical costs associated with the conventional process. Natcore has acquired a laser-based doping technology to integrate into its research and development center located in Rochester, New York. Laser doping works by directing a focused laser beam onto a silicon wafer. Initially, only a minimal amount of dopant is applied to the surface. As the laser beam interacts with the silicon, it melts the material and allows the dopant to diffuse into the wafer during the rapid re-solidification phase. This microsecond-scale process is efficient enough to complete the doping without requiring prolonged exposure. Natcore explains that the laser’s ability to concentrate energy in specific areas means only the targeted regions of the silicon wafer are heated. This precision not only enhances the efficiency of solar cells but also reduces the overall thermal load during production. By avoiding the need to heat the entire cell or use surrounding diffusion furnaces, the required production capacity is lowered, leading to greater energy savings. In an interview, Natcore’s President and CEO, Chuck Provini, stated, “We’ve completely rethought the way we produce solar cells. By streamlining the manufacturing process and eliminating the use of expensive and hazardous chemicals like silanes and phosphoryl chloride, we’re making solar energy more affordable and sustainable. We’re currently developing a cryogenic process as well. Although we haven’t quantified the results yet, we believe it will further reduce costs while improving efficiency and product quality.” This shift in technology marks a significant step forward for the solar industry, offering a cleaner, more cost-effective alternative to traditional methods. With continued R&D, Natcore aims to lead the transition toward next-generation photovoltaic solutions.

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