水热法生长ZnO纳米棒阵列的研究

Study of the ZnO nanorod arrays growth by hydrothermal method

通过控制不同的水热生长时间,在以F掺杂的SnO2导电玻璃基底上,制备了系列一维有序的ZnO纳米棒阵列。使用X射线衍射、场发射扫描电镜、紫外可见吸收光谱等表征手段对以上ZnO纳米棒阵列进行了分析,系统研究了水热生长时间对Zn O纳米棒阵列晶体结构、微观形貌、光吸收性能的影响。结果表明,水热生长时间对ZnO纳米棒的长度、直径和光学带隙有着重要影响,且随着生长时间从60 min增加到80 min和100 min,ZnO纳米棒阵列的直接带隙分别计算为3.29 eV、3.24 eV和3.19 eV。

A series of ordered one-dimensional Zn O nanorod arrays were prepared by controlling different hydrothermal growth time on the F doped SnO2 conductive glass substrate.The above series of ZnO nanorod arrays were analyzed by means of X-ray diffraction, scanning electron microscopy and ultraviolet-visible absorption spectroscopy. The results showed that the hydrothermal growth time had an important influence on the length, diameter and optical band gap of the ZnO nanorod array, and the direct band gap of the ZnO nanorod array was calculated as 3.29 e V, 3.24 e V and 3.19 e V respectively as the growth time increased from 60 minutes to 80 minutes and 100 minutes.