摘要
文摘为适应电致变色领域越来越丰富的柔性化需求,解决柔性基底上直接制备电致变色薄膜性能不佳的问题。以聚对苯二甲酸乙二醇酯(PET)/银纳米线(AgNWs)为基底,采用室温直流反应磁控溅射制备了氧化铟锡(ITO)/氧化钨(WO3)薄膜,研究了AgNWs/ITO复合电极的光电性能以及PET/AgNWs/ITO/WO3薄膜的电致变色性能。结果表明,通过加镀ITO过渡层,克服了PET/AgNWs/WO3薄膜存在的着色不均匀、单次循环后性能迅速衰退等问题。最终获得了透过率调制为57.4%(550 nm处)、69.6%(1 000 nm处),着褪色响应时间分别为10.4 s和9.9 s,相应的着褪色效率分别为27.79 cm2/C和40.45 cm2/C的高性能柔性电致变色薄膜。薄膜在超过500次循环稳定测试以及2 000次弯折测试后仍能保证较高的透过率调制,展现出了在柔性电致变色领域的巨大应用潜力。
To solve the problem of poor performance of electrochromic films,which is the critical problem of electrochrormic devices adapting to the current demand,the indium-tin oxide(ITO)/tungsten oxide(WO3) films were prepared at room temperature by DC reactive magnetron sputtering on the polyethylene terephthalate(PET)/silver nanowire(AgNWs).The photoelectric properties of AgNWs/ITO composite electrodes and the electrochromic properties of PET/AgNWs/ITO/WO3 films were investigated.The results show that the sheet resistance of the ITOcompositing electrode is significantly lower than that of AgNWs electrode,and the surface is more uniform and smoother.Thereby it overcomes the uneven coloring and rapid performance degradation after a single cycle of the W03 film.The transmittance modulation of the flexible electrochromic film is 57.4%(at 550 nm) and 69.6%(at1 000 nm),the colored and bleached response time is 10.4 s and 9.9 s,while the corresponding colored and bleached efficiency is 27.79 cm2/C and 40.45 cm2/C,respectively.In addition,the film can still maintain high transmittance modulation after more than 500 cycle stability tests and 2 000 bending tests,showing great application potential in the field of flexible electrochromic.
作者
王天悦
王顺花
王梦颖
黄庆姣
刁训刚
WANG Tianyue;WANG Shunhua;WANG Mengying;HUANG Qingjiao;DIAO Xungang(School of Materials Science and Engineering,Lanzhou Jiaotong University,Lanzhou 730070;School of Energy and Power Engineering,Beihang University,Beijing 100191;School of Physics,Beihang University,Beijing 100191)
出处
《宇航材料工艺》
CAS
CSCD
北大核心
2021年第1期68-75,共8页
Aerospace Materials & Technology
基金
国家自然科学基金项目(51862022、61875005)。
关键词
电致变色
柔性
氧化铟锡
银纳米线
Electrochromic
Flexibility
Indium-tin oxide
Silver nanowires
作者简介
第一作者:王天悦,1994年出生,硕士研究生,主要研究方向为电致变色材料与器件,E-mail:oceanwty@126.com。
