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DC plasma (violet) enhances the growth of carbon nanotubes in this laboratory-scale PECVD apparatus.
Credit: Polyparadigm

Direct current-generated plasma (violet) enhances the growth of carbon nanotubes in this laboratory-scale PECVD apparatus. Plasma-enhanced chemical vapor deposition processes utilize plasma to enhance chemical reaction rates. PECVD processing allows deposition at lower temperatures, which is often critical in the manufacture of semiconductors. The red color in the picture is black body radiation.