摘要
先采用电化学沉积法,以ZnCl_(2)作为电沉积液,在FTO导电玻璃基底上制备了ZnO纳米棒阵列结构。然后,以ZnO纳米棒阵列作为模板,采用溶胶-凝胶方法在其表面制备TiO_(2)薄膜。最后,用HCl溶液去除模板,得到TiO_(2)纳米管阵列。通过扫描电子显微镜、X射线能谱仪、X射线衍射仪等技术对样品的结构、表面形貌及组成进行了表征。研究了电解液浓度对ZnO薄膜表面形态的影响,以及溶胶-凝胶过程中溶胶陈化时间对TiO_(2)结构的影响。并将TiO_(2)纳米管阵列作为染料敏化电池阳极,研究材料的光电转化效率。结果表明:电解液浓度为0.015 mol/L时沉积的ZnO质量较高,以该条件下制备的ZnO为模板,陈化时间为12 h时,可制备出尺寸均一,结构较好的有序TiO_(2)纳米管阵列。将陈化时间为12 h下制备的TiO_(2)纳米管阵列组装至DSSC电池中,电池的效率可高达40%。
The ZnO nanorod array structure was prepared on FTO conductive glass substrate by electrodeposition method with ZnCl_(2) as the electrodeposition liquid.Then,the TiO_(2) thin film was prepared by sol-gel method on the surface of the ZnO nanorod array.Finally,the template was removed with HCl solution to obtain the TiO_(2) nanotube array.The structure,surface morphology and composition of the samples were characterized by scanning electron microscopy(SEM),X-ray energy dispersive spectrometer(EDS)and X-ray diffractometer(XRD).The effect of electrolyte concentration on the surface morphology of ZnO thin film and the effect of sol-gel aging time on the structure of TiO_(2) were studied.The results showed that the quality of deposited ZnO was high when the electrolyte concentration was 0.015 mol/L,and ordered TiO_(2) nanotube arrays with uniform size and good structure could be obtained by using ZnO prepared under such conditions as template and aging for 12 h.When the prepared TiO_(2) nanotube arrays were assembled into the DSSC battery,the efficiency of the battery reached up to 40%.
作者
李荡
王雷
张杨
李远勋
LI Dang;WANG Lei;ZHANG Yang;LI Yuanxun(School of Science,Kaili University,Kaili 556011,China)
出处
《贵州科学》
2023年第3期80-84,共5页
Guizhou Science
基金
黔东南科合J字[2021]53号
凯里学院校级规划课题2022ZD08。
