| The doped SnO2 Low-E glass with excellent surface quality and optics electricity performances have been successfully prepared by spray pyrolysis in this paper. The UV-Vis spectrometer, XRD and microscope, HRTEM, AFM and XPS were used to analyze the optics electricity performance, the crystal structure and multi-function of films.The mechanism of the F, Sb and (F+Sb) dopants effect on optics electricity and low emission performances were also investigated. We also studied the multi-functional doped SnO2 low-E glass, which has hydrophobic, hydrophilic, photocatalysis and anti-fog functions. We finished the middle stage experiments from lab to industry application. And the completed optical and thermal tests have been made. Furthermore, the Al dopped ZnO thin films low-E glasses have been studied and optics electricity performances and structures have been analzed. The results were shown in the following:The sheet resistance of SnO2:Sb thin films decreased when the Sb concentration increased; and it's the same when the F concentration increased. SnO2:Sb thin films have better electrical property, but SnO2:F thin films have better optical performance and thermal stability than SnO2:Sb films. Therefore SnO2:(F+Sb) thin films have better comprehensive performance. SnO2:(F+Sb) thin films can have the best low-E performance when the ratio of (Sn:Sb:F)is 1:0.04:0.5. The crystal structure and chemical state analysis were carried out by HRTEM and XPS. SnO2:(F+Sb) thin films grow continuously and parallel in the vertical direction of the surface. The thickness if the film is 300nm and the average grain size is 120nm. And XPS shows that the chemical state is Sn4+in the form of Sn-O bond.Hydrophobic, hydrophilic, photocatalysis and anti-fog functional multi-layers films (TiO2-SiO2/SnO2:F+Sb/SiO2 stop layer/glass) low-E glass have been successfully prepared, which combined the multi-function and low emission performances. Self-cleaning properties of low-E glass can be obtained after modified with the TiO2-SiO2 film which was prepared at 480℃and the thinckness of TiO2-SiO2 film is 60nm. The contact angel of the modified Low-E glass decreases to 4.5°after UV irradiation for lh, which indicates good antifogging capability. However, the low emission of the glass shows little change.Using sol-gel method we fabricated organic fluorinant silica thin film on low-E glass successfully. The maximal contact angle of the hydrophobic low-E glass achieved 156°. It shows the super hydrophilic property.We already achieved the middle stage experiments from lab to industry application. The low-E glass has been tested by the National Quanlity Center and all properties pass, which shows that the sheet resistance is 25Ω/(?), resistance rate is 7.5×10-4Ω·cm, transmission is77.5%, Emisssion rate is 20.4%, U is 3.9 W/m2·K, SHGC is 70.3%, and SC is 81.3%. These can give theoretical and practial directions of low-E glass industry production with our own intellectual property. |
