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采用种子层辅助水热生长法制备了ZnO纳米棒有序阵列.将ZnO溶胶旋涂到玻片上,通过煅烧得到晶种,然后将载有晶种的玻片放入含有硝酸锌和六亚甲基四胺的反应釜里,经过水热反应得到垂直于玻片生长的ZnO纳米棒有序阵列.利用原子力显微镜(AFM)观测样品表面形貌并定量分析ZnO纳米棒的长度、直径和生长密度.结果表明,当旋涂转速为4 000r/min,旋涂次数为3次时所得到的ZnO晶种分布均匀,排列紧密,平均粒径为24.3nm.当反应物浓度为0.025mol/L,反应时间为3h,反应温度为90℃时,制备的ZnO纳米棒呈有序阵列,其中纳米棒的长度为164.4nm,直径为104.1nm,生长密度为64.7根/μm2.
An ordered array of ZnO nanorods was prepared by seed-layer assisted hydrothermal growth.The ZnO sol was spin-coated onto glass slides, and the seed crystals were obtained by calcination. The slides containing seeds were then immersed in a solution containing zinc nitrate and hexamethylenetetramine In order to obtain the ordered array of ZnO nanorods perpendicular to the glass slide, the surface morphology of the samples was observed by atomic force microscopy (AFM) and the length, diameter and growth density of the ZnO nanorods The results show that when the spin speed is 4 000 r / min and the number of spin coating is 3 times, the ZnO seeds are uniformly distributed and arranged closely with an average particle size of 24.3 nm. When the reactant concentration is 0.025 mol / L, The reaction time was 3h and the reaction temperature was 90 ℃. The prepared ZnO nanorods were ordered array. The length of the nanorods was 164.4nm, the diameter was 104.1nm and the growth density was 64.7 / μm2.