采用溶胶-凝胶工艺,在镀有ITO透明电极的聚对苯二甲酸乙二酯(PET)基体上制备了MoO3电致变色薄膜.用FT-IR和TG-DTA分析了薄膜的成分和热稳定性,用分光光度计、电化学工作站研究了其在1 mol/L的LiClO4碳酸丙烯酯(PC)液体电解质中的电致变色性能.结果表明:薄膜主要成分是含有水合过氧化氢的无定形MoO3;着、退色前后可见光透过率变化△T为40%,在550 nm时的致色效率为44.8 cm2/C,经1000次循环,电色性能变化很小;着色速度和对比度随着色电压的增加而增加,Li0的扩散和Li+的迁移分别控制着着色速度和退色速度.
参考文献
| [1] | Somani PR.;Radhakrishnan S. .Electrochromic materials and devices: present and future[J].Materials Chemistry and Physics,2003(1):117-133. |
| [2] | ZHANG Gong Zheng;WANG Jin Hang .Research progress of transparent electroconductive,films on poymeric substrates[J].Materails Review,1998,12(05):64-66. |
| [3] | Antinucci M;Ferriolo A;Chevalier B .Development and characterisation of electrochromic devices on polymeric substrates[J].Solar Energy Materials and Solar Cells,1995,39:271-287. |
| [4] | Hinokuma K;Kishmoto A;Kudo T .Coloration dynamics of spin-coated MoO3@nH2O electrochromic films fabricated from peroxo-polymolybdate solution[J].Journal of the Electrochemical Society,1994,141(04):876-879. |
| [5] | Tao He;Jiannian Yao .Photochromism of molybdenum oxide[J].Journal of photochemistry and photobiology, C. Photochemistry reviews,2003(2):125-143. |
| [6] | 唐怀军,霍海玲,刘文杰,叶立瑗.改进型过氧钼酸法制备无定形MoO3薄膜[J].湖南大学学报（自然科学版）,2004(05):9-12. |
| [7] | Granqvist C G .Electrochromic oxides:a bandstructure approach[J].Solar Energy Materials and Solar Cells,1994,32:369-382. |
| [8] | Baker A T;Bosi S G;Bell J M .Degradation mechanisms in electrochromic devices based on sol-gel deposited thin films[J].Solar Energy Materials and Solar Cells,1995,39:133-143. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%