材料期刊网

Lithium borohydride (LiBH(4)) films were first fabricated under low hydrogen pressure (5-70 Pa) at ambient temperature by pulsed laser deposition (PLD). The atomistic structures and chemical compositions of the films were investigated. It was found that during the formation process of LiBH(4), the intermediate compound Li(2)B(12)H(12) was formed. As the hydrogen pressure increased up to 70 Pa. the relative weight percent of LiBH(4) was over 70 wt.% even at ambient temperature. Moreover, the stress of the films was decreased as the hydrogen pressure increased. (C) 2009 Elsevier B.V. All rights reserved.