固态全无机电致变色器件透过光谱计算与测试  

Transmission Spectra of All Inorganic Solid State Electrochromic Multilayers: A Simulation and Experimental Study

作　　者：孟政[1,2] 刘静 汪洪[1,2] Meng Zheng;Liu Jing;Wang Hong(State Key Laboratory of Green Building Materials,China Building Materials Academy,Beijing,100024,China;National Research Center for Glass Processing,Beijing 100024,China)

机构地区：[1]中国建筑材料科学研究总院绿色建筑材料国家重点实验室,北京100024 [2]太阳能与建筑节能玻璃材料加工技术北京市重点实验室,北京100024

出　　处：《真空科学与技术学报》2018年第7期633-635,共3页Chinese Journal of Vacuum Science and Technology

基　　金：国家重点研发计划课题项目(NOs.2016YFB0303901)

摘　　要：利用椭圆偏振仪拟合得到的褪色态电致变色层WO3、着色态电致变色层LixWOy、离子传导层Ta2O5、离子存储层NixO、Si O2薄膜折射率与消光系数,通过TFCalc光学设计软件计算器件褪色态、着色态透过光谱。发现波长550 nm处,理论器件变色幅度可以达到66.9%,大于实际测试光谱的56.7%(施加电压±5 V);通过增加减反层,可以进一步提高器件变色幅度至77.7%。The all inorganic solid state electrochromic multilayers,comprising the bleached layer of WO_3,colored layer of LixWOy,ion-conductive layer of Ta2 O5,ion-storage layer of NixO and anti-reflection layer of SiO_2,were synthesized by reactive magnetron co-sputtering on the glass substrate pre-coated with indium-tin-oxide（ ITO） layer. Its optical properties,including the refractive index and extinction coefficient,were mathematically modeled,theoretically analyzed,numerically simulated with TFCalc software and experimentally evaluated with ellipsometry. The influence of the anti-reflection Si O2 layer,110 nm in thickness,on the enhancement of bleached state transmittance and electrochromic behavior was investigated. The results show that the calculated change in transmittance,66. 9%,was higher than that of 56. 7% measured at 550 nm and ± 5 V,and that the anti-reflection layer further increased the change in transmittance to 77. 7%.

关 键 词：固态全无机电致变色器件 TFCalc光学设计软件 褪色态 着色态 

分 类 号：O484[理学—固体物理]