Light-weight sodium alanate thin films grown by reactive sputtering

Details Light-weight sodium alanate thin films grown by reactive sputtering Light-weight sodium alanate thin films grown by reactive sputtering

2009-10-13

arxiv.org/abs/0910.2374v1

Applied Physics Letters 95, 121904 (2009)

Physics

Condensed Matter

Materials Science

13 pages, 4 figures

Scientific paper

10.1063/1.3236525

We report the preparation of sodium alanate, a promising hydrogen storage material, in a thin film form using co-sputtering in a reactive atmosphere of atomic hydrogen. We study the phase formation and distribution, and the hydrogen desorption, with a combination of optical and infrared transmission spectroscopy. We show that the hydrogen desorption, the phase segregation and the role of the dopants in these complex metal hydrides can be monitored with optical measurements. This result shows that a thin film approach can be used for a model study of technologically relevant lightweight metal hydrides.

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