东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2013, Vol. 34 ›› Issue (10): 1409-1411.DOI: -

• 材料与冶金 • 上一篇    下一篇

Ce，Sm联合掺杂TiO2薄膜制备及其电致变色特性

牛微1，毕孝国2，孙旭东1   

  1. (1.东北大学材料与冶金学院，辽宁沈阳110819；2.沈阳工程学院能源与动力工程学院，辽宁沈阳110136)
  • 收稿日期:2013-04-25 修回日期:2013-04-25 出版日期:2013-10-15 发布日期:2013-05-24
  • 通讯作者: 牛微
  • 作者简介:牛微(1978-)，女，辽宁本溪人，东北大学博士研究生；毕孝国(1962-)，男，吉林辽源人，沈阳工程学院教授；孙旭东(1961-)，男，吉林盘石人，东北大学教授，博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(50172030)；教育部中央高校基本科研业务费专项资金资助项目(N100702001).

Preparation and Electrochromic Properties of TiO2 Films Doped Ce and Sm

NIU Wei1， BI Xiaoguo2， SUN Xudong1   

  1. 1. School of Materials & Metallurgy， Northeastern University， Shenyang 110819， China; 2. School of Energy & Power Engineering， Shenyang Institute of Engineering， Shenyang 110136， China.
  • Received:2013-04-25 Revised:2013-04-25 Online:2013-10-15 Published:2013-05-24
  • Contact: SUN Xudong
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摘要： 以钛酸四丁酯、硝酸铈和硝酸钐为主要原料，采用溶胶-凝胶法在ITO导电玻璃基片表面制备Ce，Sm联合掺杂TiO2电致变色薄膜，Ce，Sm掺杂的摩尔分数分别为0，2%，5%和10%.采用电化学工作站和紫外可见分光光度计，研究了薄膜的循环伏安特性和光谱特性.结果表明，Ce，Sm的摩尔分数为2%时，薄膜的峰值电流最大，电荷存储能力最强，注入电荷密度为1512mC·cm-2，循环可逆性K值为07.Ce，Sm的摩尔分数为5%和10%时，随着掺杂量的增加，薄膜的峰值电流减小，电荷存储能力变弱.Ce，Sm掺杂TiO2薄膜在可见光范围内具有更好的光学透明度，着色时颜色很浅，着色态和褪色态的光谱透过率几乎一致，均在90%以上，可以在电致变色玻璃中作为离子存储材料.

关键词: 电致变色特性, 离子存储薄膜, TiO2, 稀土掺杂, 溶胶-凝胶

Abstract: TiO2 films doped Ce and Sm were prepared by solgel methods with butyltitanate(Ti(OC4H9)4)， cerium nitrate(Ce(NO3)3·6H2O) and samarium nitrate(Sm(NO3)3·6H2O) as main raw materials on the ITO conductive glass substrate. The molar fractions of Ce and Sm are 0， 2%， 5% and 10%， respectively. Cyclic voltammetry and optical properties were studied using the electrochemical workstation and ultraviolet visible spectroscopy. The results showed that the film had the largest peak current and strongest ion storage capacity when Ce and Sm doping content was 2%， the injection charge density was up to 1512mC·cm-2and K value was 07. When the contents of Ce and Sm increased to 5% and 10%， the peak current decreased and the charge storage ability reduced with the increase contents of Ce and Sm. The colored state of TiO2 films doped Ce and Sm was pretty shallow. Transmittance was more than 90% in both the colored state and bleached state. Therefore TiO2 films doped Ce and Sm had good transparency in the visible light range and would be used as ion storage materials in the electrochromic glass.

Key words: electrochromic property, ion storage film, TiO2, doped rare earth, solgel

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