Epitaxial thin film growth of ion conductive hydrides for development of solid electrolytes

在这项研究中，我们挑战生长最简单的氢化物LiH的外延薄膜，以建立高质量氢化物薄膜生长所必需的技术，氢化物是一类备受关注的材料，作为未来技术的电解液，薄膜锂离子电池。在高于Li熔点的温度下，通过在MgO(100)衬底上对液态Li进行氢化，成功地获得了LiH外延薄膜。此外，模拟研究还揭示了LiH外延薄膜的生长机理，为各种氢化物的外延薄膜生长提供了方向。

In this study, we challenged to grow epitaxial thin films of simplest hydride LiH to establish techniques essential to high quality thin film growth of hydrides, which are class of materials attracting attention as electrolytes of the future technology, thin film lithium ion batteries. The LiH epitaxial thin films were successfully obtained by hydrogenating liquid-Li on a MgO(100) substrate at temperature higher than the melting point of Li. In addition, simulation study revealed growth mechanism of the LiH epitaxial thin film that gives direction for epitaxial thin film growth of various hydrides.