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Black coating on chromium on glass patterns

2006

I have a special process how to generate sub micrometer features of chromium onto a glas surface. In order to reduce the reflectivity of the chromium (especially for 630nm wavelength) I would like to transform the chromium layer into a black chromium, or to cover it with a black layer.
The thickness of the chromium is 100 nm.
Thanks for any hints!

Jean-Michel Asfour
- Weinheim, Germany

Try to colour it with 5% palladium or platinum chloride solution -test it on some chromium plated plates. This is somewhat expensive but must work on any metal less noble then palladium or platinum. Hope it helps and good luck!

Goran Budijar
- Zagreb, Croatia
2006

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