Journal
THIN SOLID FILMS
Volume 519, Issue 2, Pages 934-937Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2010.09.021
Keywords
Thin films; Sputtering; Switching; Optical properties; Electrochromic properties; Palladium alloys
Categories
Funding
- Japan Society for the Promotion of Science [21760570]
- Grants-in-Aid for Scientific Research [21760570] Funding Source: KAKEN
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An electrochromic (EC) switchable mirror glass can change between a reflective state and a transparent state with voltage application The conventional device has a multilayer of Mg(4)Ni/Pd/Al/Ta(2)O(5)/WO(3)/indium-tin oxide on a transparent substrate A palladium thin film was used as the proton injection layer For practical use we attempted to reduce the amount of palladium thin film from the viewpoints of the reduction in total fabrication cost and the efficient use of resources The thickness of the film was related to the optical switching properties of the device Although the device with a 1-nm-thick palladium film showed a high transmittance of 63% in the transparent state as low switching durability was not suitable for practical application Moreover we were able to adapt a palladium-based alloy (Pd(0 8)Ag(0 2)) which is a well-known hydrogen permeation membrane as the proton injection layer to reduce the amount of palladium thin film As a result, we found that a 4-nm-thick Pd-Ag thin film has good adaptability to the EC switchable mirror (C) 2010 Elsevier B V All rights reserved
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