%0 journal article
%@ 0003-6951
%A Pasturel, M.,Slaman, M.,Borsa, D.M.,Schreuders, H.,Dam, B.,Griessen, R.,Lohstroh, W.,Borgschulte, A.

%D 2006
%J Applied Physics Letters
%N 
%P 021913 
%R doi:10.1063/1.2221412
%T Stabilized switchable “black state” in Mg2NiH4 /Ti/Pd thin films for optical hydrogen sensing
%U https://doi.org/10.1063/1.2221412
 
%X A triple layer thin film (30 nm Mg2Ni/100 nm Ti/10 nm Pd sputtered on glass) switches reversibly from a shiny metallic to a “black” state upon exposure to moderate hydrogen pressure,(=5.103 Pa). This black state resembles that obtained in thick Mg2NiHx layers and has the great,advantage of being stable and easily controlled. Both the reversible high optical contrast (Rreflective /Rblack=10 in the red wavelength range) and the fast kinetics of hydrogen absorption and desorption make this material interesting for applications as optical hydrogen sensors.