Electrochromism of mixed polyacid films and its application for a smart window
混合多元酸薄膜的电致变色及其在智能窗中的应用
基本信息
- 批准号:04555182
- 负责人:
- 金额:$ 7.23万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Developmental Scientific Research (B)
- 财政年份:1992
- 资助国家:日本
- 起止时间:1992 至 1993
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
(1).Development and Evaluation of New Electrochromic filmsPeroxo-polymolybdotungstates are formed by the direct reaction of a mixture of metallic Mo and W (for example, 5 : 5 mixture) with hydrogen peroxide solution. A homogeneous and amorphous thin film (0.4 mum, typically) is fabricated on an ITO glass substrate by spin-coating using such a solution. After heat-treatment at 120 *, it exhibits electrochromism excellent in both reversibilty and response time in an organic Li-electrolyte.The film colored at -1V (vs. Ag/AgCl) shows rather flat absorption spectrum. Its color is dark grayish blue and the DELTAOD between -1V and +0.5V reaches 0.7 at 670nm (lambda_<max>). Kinetic aspect of such electrochroic films will also be discussed.(2).Coloration of electrochromic film in contact with polymer electrolyteElectrochromic thin film of amorphous WO_3・nH_2O was fabricated by spin-coating a peroxo-polytungstate solytion. Coloration and bleaching kinetics of the film incontact with a solid polymer electrolyte were investigated by a chrono-amperometric method using a cell, Li/polymer/WO_3・nH_2O, ITO.The transition currents were analyzed on the basis of a newly proposed theory to be able to describe the diffusion-controlled current generated by a voltage step in such a cell without a reference electrode. It was found that both kinetics were controlled by the diffusion process and the chemical diffusion coefficients of Li were, in common, about 5 x 10^<-12> cm^2/s.(3).Fabrication and evaluation of an electrochromic window prototypeA new thin film proton conductor based on tantalum oxide was developed from peroxo-tantalic acid. A prototype of electrochromic window in the tungsten oxide/Prussian blue system was fabricated using this conductor as an ion conducting layr. Successful and stable coloration-bleaching performance was demonstrated.
(1).新型电致变色薄膜的研制和评价金属钼和钨的混合物(例如,5:5的混合物)与过氧化氢溶液直接反应形成过氧多钨钼酸盐。用这种溶液在ITO玻璃衬底上旋涂制备了均匀的非晶态薄膜(通常为0.4um)。经120℃热处理后,在有机锂电解液中表现出良好的可逆性和响应时间的电致变色性能,在-1V(vs.Ag/AgCl)着色的薄膜具有较平坦的吸收光谱。它的颜色是深灰蓝色,在-1V到+0.5V之间的DELTAOD在670 nm处达到0.7。电致变色薄膜与聚合物电解液的接触变色。采用旋涂法制备了非晶态WO_3·NH_2O电致变色薄膜。用计时安培法研究了薄膜在固体聚合物电解液中的变色和漂白动力学。采用Li/聚合物/WO_3·NH_2O,ITO电池,根据一个新提出的理论分析了过渡电流,该理论能够描述在没有参比电极的电池中由电压阶跃产生的扩散控制电流。研究发现,这两种动力学过程均受扩散过程控制,Li的化学扩散系数约为5×10~(-12)cm~(2/)/S。(3)电致变色窗口原型的制备与评价以过氧钽酸为原料,制备了一种新型的氧化钽薄膜质子导体。利用该导体作为离子导电层,制作了氧化钨/普鲁士蓝体系电致变色窗口的原型。成功且稳定的变色漂白性能得到验证。
项目成果
期刊论文数量(39)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Kudo,et al.: "Transitionalcurrent analysis useful for intercalation electrode/solid electrolyte system" Solid State Ionics. 62. 99-104 (1993)
T.Kudo 等人:“对插层电极/固体电解质系统有用的过渡电流分析”固态离子学。
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- 影响因子:0
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J.Oi,et al.: "Hexagonal and pyrochlore-type cesium tungstates synthesized from cesium peroxo-polytungstate and their intercalation chemistry" Solid State Ionics. (in press).
J.Oi 等人:“由过氧多钨酸铯合成的六方和烧绿石型钨酸铯及其插层化学”固态离子学。
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K.Hinokuma,K.Ogasawara,A.Kisimoto,S.takano and T.Kudo: "Electroc-romism of Spin-coated MoO_3・nH_2O thin films from peroxo-polymolybdate" Solid State Ionics. 53-56. 993-997 (1992)
K.Hinokuma、K.Ogasawara、A.Kisimoto、S.takano 和 T.Kudo:“过氧聚钼酸盐旋涂 MoO_3·nH_2O 薄膜的电化学”固态离子学 53-56。 1992)
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A.Kishimoto,N.Matsuzaki and T.Kudo: "Oxygen molecules stably caged in a UV irradiated thin film from peroxo polytungstic acids" J.Ceram.Soc.Jpn.,. 101. 143-4 (1993)
A.Kishimoto、N.Matsuzaki 和 T.Kudo:“氧分子稳定地笼在过氧多钨酸的紫外线照射薄膜中”J.Ceram.Soc.Jpn.,。
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- 影响因子:0
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K.Hinokuma,A.Kishimoto and T.Kudo: "Coloration dynamics for spin-coated MoO_3・nH_2O electro-chromic films fabricat d from peroxo-polymolybdate" J.Electrochem Soc.,.
K.Hinokuma、A.Kishimoto 和 T.Kudo:“由过氧聚钼酸盐制造的旋涂 MoO_3·nH_2O 电致变色薄膜的着色动力学”J.Electrochem Soc.,。
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KUDO Tetsuichi其他文献
KUDO Tetsuichi的其他文献
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{{ truncateString('KUDO Tetsuichi', 18)}}的其他基金
Development of Bicontinuous Mesoporous Oxide Materials
双连续介孔氧化物材料的研制
- 批准号:
15360348 - 财政年份:2003
- 资助金额:
$ 7.23万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Lithium intercalation properties of V205-based thin films and their application to thin film batteries
V2O5基薄膜的嵌锂性能及其在薄膜电池中的应用
- 批准号:
10555299 - 财政年份:1998
- 资助金额:
$ 7.23万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Peculiar reactions between interstitial compounds of transition metals and hydrogen peroxide and characterization of resultant materials
过渡金属间隙化合物与过氧化氢之间的特殊反应及所得材料的表征
- 批准号:
09450315 - 财政年份:1997
- 资助金额:
$ 7.23万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Metal to insulator transition of VO2-based thin films prepared by a coating method and its application to smart windows
涂覆法制备VO2基薄膜的金属-绝缘体转变及其在智能窗中的应用
- 批准号:
08555213 - 财政年份:1996
- 资助金额:
$ 7.23万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study of Correlation between Ionic Transport and the Structure of Solids
离子输运与固体结构的相关性研究
- 批准号:
07239102 - 财政年份:1995
- 资助金额:
$ 7.23万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
Low Temperature Synthesis of Metal Oxide Bronze Phases and their Electric Properties
金属氧化物青铜相的低温合成及其电性能
- 批准号:
06453118 - 财政年份:1994
- 资助金额:
$ 7.23万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
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04555215 - 财政年份:1992
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