Mixed metal films with switchable optical properties

被引：81

作者：

Richardson, TJ ^{[1
]}

Slack, JL ^{[1
]}

Farangis, B ^{[1
]}

Rubin, MD ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 08期

关键词：

D O I：

10.1063/1.1454218

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Thin, Pd-capped metallic films containing magnesium and first-row transition metals (Mn, Fe, Co) switch reversibly from their initial reflecting state to visually transparent states when exposed to gaseous hydrogen or following cathodic polarization in an alkaline electrolyte. Reversion to the reflecting state is achieved by exposure to air or by anodic polarization. The films were prepared by cosputtering from one magnesium target and one manganese, iron, or cobalt target. Both the dynamic optical switching range and the speed of the transition depend on the magnesium-transition metal ratio. Infrared spectra of films in the transparent, hydrided (deuterided) states support the presence of the intermetallic hydride phases Mg3MnH7, Mg2FeH6, and Mg2CoH5. (C) 2002 American Institute of Physics.

引用

页码：1349 / 1351

页数：3