Wafers& Substrate # Platinum coated silicon wafer Platinum-coated silicon wafers coated with pure platinum layer .These substrates can be used in electrochemical sensors,photovoltaic cells, fuel cells, MEMES, Surface-Enhanced Raman Spectroscopy. They are coated with 100 nm pure platinum. The platinum-coated silicon wafers are available in 50.8mm and 150mm sizes. The wafers are individually packaged in trays. They are ideal for a variety of nanotechnology applications. Nickel-coated silicon wafer