Metal buffer layer inserted switchable mirrors

被引:19
作者
Bao, S. [1 ]
Tajima, K. [1 ]
Yamada, Y. [1 ]
Okada, M. [1 ]
Yoshimura, K. [1 ]
机构
[1] Natl Inst Adv Sci & Technol, Mat Res Inst Sustainable Dev, Moriyama Ku, Nagoya, Aichi 4638560, Japan
关键词
switchable mirror; Mg-Ni alloy thin film; hydrogen diffusion metals; V; Nb; Ti;
D O I
10.1016/j.solmat.2007.02.023
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Thin buffer layers of hydrogen diffusive metals such as Ti, Nb, and V were inserted between a Mg4Ni thin film and a Pd top layer, which were prepared by DC magnetron sputtering. Their optical, electrochemical properties, and switching durability were investigated using both gasochromic and electrochromic switching methods. It has been proved that Ti, Nb, and V buffer layers can protect the migration of Mg to surface of thin film during the switching processes, and also service as a protection layer against the oxidization of Mg. These metal buffer layers do not affect the hydrogenation of Mg-Ni alloy mirrors system when switching with hydrogen gas or electrochromic, rather, its dehydrogenation speed is accelerated greatly. Switching cyclic number of those metal buffer layer inserted mirrors achieved 400-500 cycles which was enhanced ca. 3 times than non-inserted one. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:216 / 223
页数:8
相关论文
共 15 条
[1]   Titanium-buffer-layer-inserted switchable mirror based on Mg-Ni alloy thin film [J].
Bao, Shanhu ;
Yamada, Yasusei ;
Okada, Masahisa ;
Yoshimura, Kazuki .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 2006, 45 (20-23) :L588-L590
[2]   Electrochemical study of hydrogen diffusion behavior in Mg2Ni-type hydrogen storage alloy electrodes [J].
Cui, N ;
Luo, JL .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 1999, 24 (01) :37-42
[3]   Temperature dependence of magnetoresistance and Hall effect in Mg2NiHx films -: art. no. 115326 [J].
Enache, S ;
Lohstroh, W ;
Griessen, R .
PHYSICAL REVIEW B, 2004, 69 (11)
[4]   Calculation of the electronic and structural properties of cubic Mg2NiH4 [J].
García, GN ;
Abriata, JP ;
Sofo, JO .
PHYSICAL REVIEW B, 1999, 59 (18) :11746-11754
[5]   Tunable reflectance Mg-Ni-H films [J].
Isidorsson, J ;
Giebels, IAME ;
Griessen, R ;
Di Vece, M .
APPLIED PHYSICS LETTERS, 2002, 80 (13) :2305-2307
[6]   A novel magnesium-vanadium hydride synthesized by a gigapascal-high-pressure technique [J].
Kyoi, D ;
Sato, T ;
Rönnebro, E ;
Tsuji, Y ;
Kitamura, N ;
Ueda, A ;
Ito, M ;
Katsuyama, S ;
Hara, S ;
Noréus, D ;
Sakai, T .
JOURNAL OF ALLOYS AND COMPOUNDS, 2004, 375 (1-2) :253-258
[7]  
Kyoi D, 2004, J ALLOY COMPD, V372, P213, DOI 10.1016/j.jallcom.2003.08.098
[8]   THE STRUCTURE AND DYNAMICS OF HYDROGEN IN MG2NIH4 STUDIED BY ELASTIC AND INELASTIC NEUTRON-SCATTERING [J].
NOREUS, D ;
OLSSON, LG .
JOURNAL OF CHEMICAL PHYSICS, 1983, 78 (05) :2419-2427
[9]  
NOWICK AS, 1975, DIFFUSION SOLIDS, P272
[10]   Switchable mirrors based on nickel-magnesium films [J].
Richardson, TJ ;
Slack, JL ;
Armitage, RD ;
Kostecki, R ;
Farangis, B ;
Rubin, MD .
APPLIED PHYSICS LETTERS, 2001, 78 (20) :3047-3049