摘要
应用电沉积法制备WO3、NiO、M0O3、WO3/MO03等电致变色薄膜。WO3薄膜、NiO薄膜、M0O3薄膜具有较好的电致变色特性,漂白态和着色态的透射率之差平均为30%左右。WO3/M0O3掺杂薄膜漂白态和着色态的透射率之差平均为40%左右,显示掺杂有利于增强薄膜的电致变色特性。WO3+NiO互补型电致变色体系漂白态和着色态的透射率之差平均为40%左右,显示互补型电致变色材料有利于增强电致变色特性。在双注入模型的基础上,根据过渡金属配合物显色机理,提出解释电致变色机理的“配位场模型”,认为在电致变色中可能存在三种电子跃迁方式。
WO3, NiO, MoO3, WO3/MoO3 electrochromic films were prepared by electrodeposition. WO3, NiO, MoO3 films whose different transmittances between bleached and coloured states are about 30% possess electrochromism. MoO3 doped WO3 film whose different transmittance between bleached and coloured states is about 40% displays better electrochromism. WO3 + NiO complementary system whose different transmittance between bleached and coloured states is about 40% displays better electrochromism. 'Coordination field model' about electrochromic mechanism is put forward based on 'double-charge injection model' and the chromogenic mechanism of transition metal complexes. 'Coordination field model' considers there may be three patterns of electronic transitions in electrochromism.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2005年第3期382-385,共4页
Acta Energiae Solaris Sinica
关键词
电沉积
电致变色
氧化钨
氧化镍
氧化钼
Chromogenics
Electrochemistry
Electrochromism
Electrodeposition
Film preparation
Molybdenum compounds
Nickel compounds
Oxides
Tungsten compounds
