Durable reflection-controllable electrochromic thin film material
View Patent ↗One exemplary embodiment of an electrochromic thin-film material comprises an alloy of antimony and one or more base metals; and/or an alloy of antimony, one or more base metals, and lithium; and/or an alloy of antimony, one or more base metals, lithium, and one or more noble metals. Another exemplary embodiment of an electrochromic thin-film material comprises a multilayer stack, the multilayer stack comprising at least one layer comprising one of antimony, antimony-lithium alloy, antimony-one or more base metals alloy, antimony-one or more base metals-lithium alloy, antimony-one or more base metals-one or more noble metals alloy, and antimony-one or more base metals-one or more noble metals-lithium alloy; and at least one alternating layer comprising one of a base metal and a base-metal alloy. One or more of the base metals comprise Co, Mn, Ni, Fe, Zn, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W, Cd, Mg, Al, Ga, In, Sn, Pb, and Bi, and alloys thereof.
1. An electrochromic thin-film material, comprising:
at least one of an alloy of antimony and one or more base metals;
an alloy of antimony, one or more base metals, and lithium; and
an alloy of antimony, one or more base metals, lithium, and one or more noble metals.
2. The electrochromic thin-film material according to claim 1 , wherein the one or more base metals comprise Co, Mn, Ni, Fe, Zn, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W, Cd, Mg, Al, Ga, In, Sn, Pb, and Bi.
3. The electrochromic thin-film material according to claim 2 , wherein a thickness of the thin-film material is between about 1 nm to about 400 nm.
4. The electrochromic thin-film material according to claim 2 , wherein the electrochromic thin-film layer comprises reflection-controllable electrochromic thin film material.
5. The electrochromic thin-film material according to claim 2 , wherein the electrochromic thin-film material comprises an electrochromically active layer of an electrochromic device.
6. The electrochromic thin-film material according to claim 5 , wherein the electrochromic thin-film material becomes transparent upon lithiation and becomes reflective upon delithiation.
7. The electrochromic thin-film material according to claim 5 , wherein the electrochromic device comprises a solid-state electrochromic device.
8. The electrochromic thin-film material according to claim 7 , wherein the electrochromic device comprises an electrochromic thin-film material, a transparent electrode, and an electrochromic layer formed between the electrochromic thin-film material and the transparent electrode.
9. The electrochromic thin-film material according to claim 5 , wherein the electrochromic device is formed on a glass substrate.
10. The electrochromic thin-film material according to claim 9 , wherein the electrochromic device and the glass substrate comprise a light-control glass.
11. The electrochromic thin-film material according to claim 2 , wherein the thin-film material comprises Sb x CoLi y , in which 0.5≦x≦20, and 0.1≦y≦20.
12. The electrochromic thin-film material according to claim 2 , wherein the electrochromic thin-film material comprises Sb x MnLi y , in which 0.5≦x≦20, and 0.1≦y≦20.
13. The electrochromic thin-film material according to claim 2 , further comprising a protective layer formed on the electrochromic thin-film material, the protective layer comprising a material that is non-permeable to lithium, oxygen, and water.
14. An electrochromic thin-film material, comprising a multilayer stack, the multilayer stack comprising:
at least one layer comprising:
one of antimony, antimony-lithium alloy, antimony-one or more base metals alloy, antimony-one or more base metals-lithium alloy, antimony-one or more base metals-one or more noble metals alloy, and antimony-one or more base metals-one or more noble metals-lithium alloy; and at least one alternating layer comprising one of a base metal and a base-metal alloy.
15. The electrochromic thin-film material according to claim 14 , wherein the one or more base metals comprise Co, Mn, Ni, Fe, Zn, Ti, V, Cr, Zr, Nb, Mo, Hf, Ta, W, Cd, Mg, Al, Ga, In, Sn, Pb, and Bi.
16. The electrochromic thin-film material according to claim 15 , wherein a thickness of the thin-film material is between about 1 nm to about 400 nm.
17. The electrochromic thin-film material according to claim 15 , wherein the electrochromic thin-film layer comprises reflection-controllable electrochromic thin film material.
18. The electrochromic thin-film material according to claim 15 , wherein the electrochromic thin-film material comprises an alternate multilayer stack of SbLi x and Co wherein 0≦x≦10.
19. The electrochromic thin-film material according to claim 15 , wherein the electrochromic thin-film material becomes transparent upon lithiation and becomes reflective upon delithiation.
20. The electrochromic thin-film material according to claim 15 , wherein the electrochromic thin-film material comprises an electrochromically active layer of an electrochromic device.
21. The electrochromic thin-film material according to claim 20 , wherein the electrochromic device is a solid-state electrochromic device.
22. The electrochromic thin-film material according to claim 21 , wherein the electrochromic device comprises an electrochromic thin-film material, a transparent electrode, and an electrolyte formed between the electrochromic thin-film material and the transparent electrode.
23. The electrochromic thin-film material according to claim 19 , wherein the electrochromic device is formed on a glass substrate.
24. The electrochromic thin-film material according to claim 23 , wherein the electrochromic device and the glass substrate comprise a light-control glass.
25. The electrochromic thin-film material according to claim 15 , wherein the thin-film material comprises SbLi x in which 0.01≦x≦10.
26. The electrochromic thin-film material according to claim 25 , wherein 0.1≦x≦0.6.
27. The electrochromic thin-film material according to claim 15 , further comprising a transparent protective layer formed on the electrochromic thin-film material, the protective layer comprising a material that is non-permeable to lithium, oxygen, and water.