In the earlier days, the chemistry involved in solar cell manufacturing was relatively simple, using commodity chemicals. With cell efficiencies continuously on the rise and new cell concepts slowly being introduced with increased speed of processing, precise chemical concentration control is becoming crucial to obtain consistency and more cost-effective manufacturing of solar panels. This is possible by monitoring on-line the etching bath composition, a small but genuine step forward in your competitive advantage.
Typical parameters: NaOH – Si – HF – HNO3
By AppliTek NV based in Nazareth, BELGIUM.
As devices get smaller and the fabrication plants get larger, the purity of the water required for ultrapure water systems increases. In terms of water reuse, the industry has relatively conservative attitudes towards recycling water for ultrapure water applications, but wastewater is treated and reused for cooling and other less critical purposes. Besides semiconductors, two other silicon-based sectors of the microelectronics industry need large volumes of highly pure water: flat panel displays (FPD) and photovoltaics (PV). Although, both sectors are in the process of maturing we anticipate that the increasing complexity of FPD and PV devices will create demand for even higher purity water.
By Global Water Intelligence (GWI) based in Oxford, UNITED KINGDOM.
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