Platinum-black coatings for infrared emitters

Krzysztof Jasek; Jaroslaw Puton; Boguslaw Siodlowski; Andrzej Knap

doi:10.1117/12.517061

22 September 2003 Platinum-black coatings for infrared emitters

Krzysztof Jasek, Jaroslaw Puton, Boguslaw Siodlowski, Andrzej Knap

Proceedings Volume 5124, Optoelectronic and Electronic Sensors V; (2003) https://doi.org/10.1117/12.517061
Event: Optoelectronic and Electronic Sensors V, 2002, Rzeszow, Poland

Abstract

The technology of covering of IR sources with high emissivity materials was worked out. Platinum black was electrodeposited from H₂PtCl₆ solution on platinum foil. The current densities from 0.1 to 5 mA/mm² and the deposition time from 1 to 15 minutes were employed. The microstructures of platinum black were examined using scanning electron microscopy. For the current densities below 1 mA/mm² the island structures were received. For the current densities from 1 to 2 mA/mm² first the island structure arises, next it changes to the sponge structure. For the current densities above 2 mA/mm² only the sponge structures were observed. For the island structures multiple increases of emissivity coefficient were discovered. Instead, for the sponge structures the increase of emissivity coefficient was much lesser. The value of emissivity coefficient for examined covers was about 0.8 at temperature 1000°C. For the obtained IR sources stable work without changing the parameters is possible for the temperature up to 800°C.

Citation Download Citation

Krzysztof Jasek, Jaroslaw Puton, Boguslaw Siodlowski, and Andrzej Knap "Platinum-black coatings for infrared emitters", Proc. SPIE 5124, Optoelectronic and Electronic Sensors V, (22 September 2003); https://doi.org/10.1117/12.517061

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