二氧化钛薄膜制备及其性能研究

发布时间：2018-01-06 01:27

本文关键词：二氧化钛薄膜制备及其性能研究　出处：《南京理工大学》2016年硕士论文　论文类型：学位论文

【摘要】：二氧化钛薄膜在太阳能电池方面扮演着重要的角色,且在净化空气和自清洁玻璃等日常应用中也有光明的前景。文章用钛酸四丁酯作为二氧化钛的前驱体溶液,通过静电喷射法,在普通的BK7玻璃上制备二氧化钛薄膜。通过研究发现,当流量为60微升每分钟、电压为20千伏、高度为3厘米时,可以制备出致密均匀的二氧化钛薄膜。XRD分析表明,所制得薄膜为单晶锐钛矿薄膜；文章分析了二氧化钛薄膜的透光率和平整度。通过紫外可见光度分光计测试说明实验中制备得到的二氧化钛薄膜具有很高的透光率；AFM测试结果说明静电喷射法可以制备出平整度相当高的二氧化钛薄膜。二氧化钛薄膜在柔性衬底上的应用也越来越广,如太阳能和可穿戴设备。在柔性衬底上制备薄膜的方法有很多,如提拉法、旋涂法和静电喷射法。这些方法中,静电喷射法是最适合在柔性基底上制备二氧化钛薄膜。我们用多射流静电喷射法在柔性铝箔基底上制备二氧化钛薄膜,并由此来研究他的致密性和均匀性。将铝箔基底的二氧化钛薄膜对折后再次拉直后,通过SEM分析可知,薄膜表面依旧连续、均匀并且致密,没有脱落和开裂现象。薄膜的厚度和表面形貌在通过附着力测试胶带测试后没有变化,说明在铝箔基底上具有好的附着力。由上面结果可以看出,在铝箔上制备得到的二氧化钛薄膜具有良好的可弯曲性和附着性。这些实验结果说明,在柔性衬底上制备二氧化钛薄膜也将会有一定的发展前景。
[Abstract]:Titanium dioxide thin films play an important role in solar cells, and also have a bright future in air purification and self-cleaning of glass. In this paper, tetrabutyl titanate is used as the precursor solution of titanium dioxide. Titanium dioxide thin films were prepared on ordinary BK7 glass by electrostatic spray method. It was found that when the flow rate was 60 microliters per minute, the voltage was 20 kV and the height was 3 cm. The results of XRD analysis showed that the films were monocrystalline anatase films. In this paper, the transmittance and smoothness of TIO _ 2 thin films are analyzed. The results of UV-Vis spectrophotometer show that the TIO _ 2 films prepared in the experiment have high transmittance. AFM test results show that the electrostatic spray method can be used to fabricate titanium dioxide thin films with high smoothness, and the application of titanium dioxide thin films on flexible substrates is more and more extensive. For example, solar energy and wearable devices. There are many methods for preparing thin films on flexible substrates, such as Czochralski method, spin coating method and electrostatic spray method. Electrostatic spraying is the most suitable method for preparing TIO _ 2 thin films on flexible substrates, and we use multi-jet electrostatic spray method to prepare TIO _ 2 films on flexible aluminum foil substrates. And from this to study his density and uniformity. After folding the titanium dioxide film on the aluminum foil and then straightening it again, through SEM analysis, the surface of the film is still continuous, uniform and dense. No shedding and cracking. The thickness and surface morphology of the film did not change after the adhesive test tape test, indicating that there is good adhesion on the aluminum foil substrate. From the above results can be seen. The results show that titanium dioxide thin films prepared on flexible substrates will have a promising future.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：O484.1

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