电致变色器件原理结构以及相关文献.ppt

1、a,1,电致变色器件,电致变色是指材料的光学属性（反射率、透过率、吸收率等）在外加电场的作用下发生稳定、可逆的颜色变化的现象，在外观上表现为颜色和透明度的可逆变化。具有电致变色性能的材料称为电致变色材料，用电致变色材料做成的器件称为电致变色器件。,a,2,Structure,a,3,常用电极材料 FTO ITO 掺Al的ZnO PET等,电解质 液态 高氯酸锂+丙烯碳酸酯 （LIPC） 六氟磷酸锂+多元碳酸酯（LB） 凝胶电解质 加入交联剂（物理交联和化学交联） 固态电解质 固态锂盐 （LiNbO3，LiTaO3） 全固态聚合物电解质 聚合物本体与盐 （PEO-LiCF3SO3） 聚合物本体与

2、盐并加入无机填料 （PEO-LiClO4-Al2O3）,离子储存层 TiO2阵列或薄膜 ，ZnO阵列或薄膜等,a,4,电致变色材料,过渡金属氧化物 WO3 MoO3 BiO3 V2O5 Nb2O5 （阴极着色） 灵巧窗 NiO IrOx CoO3 Rh2O3 MnO （阳极着色） 人造卫星热控装置 Ir(OH)3 NiOxHy 电致变色书写纸,普鲁士蓝系统 普鲁士蓝 普鲁士黑 普鲁士绿 普鲁士白 电致变色显示器,紫罗兰 俗称：1,1-双取代基-4,4-联吡啶 汽车后视镜 显示器,导电聚合物 聚吡咯 聚苯胺 聚噻吩 灵巧窗 显示器,镧系元素与过渡金属元素 金属氢化物 亚硝酰基含氧钼络物 可调转换

3、镜 的配位络合物及金属聚合物 聚Ru2+ (vbpy)2(py)2Cl2 近红外开关装置,金属酞化青 Lu(PC)2 显示器,a,5,optical contrast (T),coloration efficiency (CE) CE= (OD)/ Q OD= log(Tb /Tc),coloration time,bleaching time,cyclic stability,Main Parameters,a,6,High-performance flexible electrochromic device based on facile semiconductor-to-metal tr

4、ansition realized by WO32H2O ultrathin nanosheets,Scientific Reports 3, Article number:1936| doi:10.1038/srep01936,a,7,Setup and electrochromic performances of WO3 2H2O nanosheets-based flexibleelectrochromic device.,The structure of flexible electrochromic device,The preparation of WO32H2O ultrathi

5、n nanosheets,a,8,Tb =69% Tc=21% T=48% （800nm）,optical contrast (T),coloration time and bleaching time,a,9,contrast,a,10,coloration efficiency (CE),cyclic stability,a,11,Solar Energy Materials&Solar Cells117(2013)231238,Efficient electrochromic materials based on TiO2WO3 core/shell nanorod arrays,a,1

6、2,b TiO2 nanorods d=80-100nm L=700nm f WO3 film,TiO2200WO3,TiO2400WO3,TiO2600WO3,a,13,a,b TiO2 nanorod c,d TiO2200WO3 core/shell nanorod array,a,14,Optical modulation range (%) and Switching speed (s),a,15,WO3,TiO3200WO3,TiO3400WO3,TiO3600WO3,a,16,The TiO2400WO3 core/shell nanorod array film sustain

7、s a transmittance modulation of about 40% even after subjected for10,000 cycles,indicating that the TiO2WO3 core/shell nanorod array film possesses quite good cycling durability,a,17,High optical switching speed and flexible electrochromic display based on WO3 nanoparticles with ZnO nanorod arrays s

8、upported electrode,Nanotechnology 20 (2009) 185304 (6pp),a,18,a,19,Top view (a) and cross-sectional (b) SEM images of the ZNRs and top (c) and cross-sectional (d) views of the WO3-coated ZNRs,D=170250 nm L=340 nm,a,20,a,21,650nm 118.6 C1 cm2 550nm 76.1 C1 cm2,coloration time and bleaching time,color

9、ation efficiency (CE),cyclic stability,a,22,The anodized crystalline WO3 nanoporous network with enhanced electrochromic properties,Nanoscale, 2012, 4, 5980,a,23,a,24,HRTEM image of one of the nanopore wall areas for WO3 nanoporous networks,The corresponding Selected Area Diffraction (SAD) pattern indexed to the WO3 orthorhombic phase,the corresponding Raman spectra of the as-anodized (blue line) and post-annealed network (green line).,XRD pattern of an as-sputtered W film (orange line), an as-anodized W oxide nanoporous network (blue line) and the network after annealing at 4