ZnO纳米棒的电沉积生长方法研究

Study on Electrochemical Deposition Mechanism of ZnO Nanorods

摘要:

用含有硝酸锌(Zn(NO₃)₂)和六次甲基四胺(HMTA, C₆HM₁₂N₄)的电解液, 在低温环境下采用阴极电沉积法在ITO玻璃上成功合成了氧化锌(ZnO)纳米棒阵列。系统研究了电压、前驱物(Zn²⁺)浓度、温度和种子层等参数对ZnO纳米棒形貌结构的影响, 实现了ZnO纳米棒的可控制备。结果表明, 在有种子层的情况下, 当电压为-0.9V、Zn²⁺浓度为0.01M、温度为75℃条件下生长的ZnO纳米棒c-轴择优取向好、尺寸均匀(80~100nm), 且在380~750nm的可见光波长范围内的透射率达到80%。

Abstract:

Using the electrochemical deposition method in Zn(NO₃)₂ and C₆HM₁₂N₄ electrolyte at a low temperature, the ZnO nanorods were synthesized on ITO substrate. The effects of voltage, precursor concentration (Zn²⁺), temperature and seed-layer on the as-prepared ZnO nanorods were studied, realizing the controllable preparation for ZnO nanorods. The results demonstrate that the ZnO nanorods which were synthesized on seed layer under the conditions of -0.9V, 0.01M Zn²⁺and 75℃ have the property of c-axis orientation, uniform size (80～100nm) and a high transmittance of 80% in 380～750nm visible wavelength range.