铟掺杂调控氧化锌纳米柱的密度与光学带隙
发布时间：2018-11-28 17:37
【摘要】：采用低温水热法在掺铝氧化锌(AZO)基底上,通过在溶解有乙酸锌(ZnAc_2)与六次甲基四胺(HMTA)的反应溶液中引入NH_4NO_3与In(NO_3)_3,制备出不同形貌和光学性能的ZnO纳米柱阵列。采用扫描电子显微镜、透射光谱、光致发光发射谱研究了NH_4NO_3与In(NO_3)_3对ZnO纳米柱阵列的结构和光学性质的影响。结果表明:溶液中添加的In(NO_3)_3显著地降低了ZnO纳米柱的密度,增大了纳米柱之间的间距,从而能够作为太阳能电池的减反射层使用。通过控制NH_4NO_3与In(NO_3)_3在反应溶液中的添加比例,可以在3.35~3.62 e V范围内调控所制备的ZnO纳米柱的光学带隙宽度。
[Abstract]:In this paper, NH_4NO_3 and In (NO_3) _ 3 were introduced in the solution of the reaction of zinc acetate (ZnAc_2) with hexamethylenetetramine (HMTA) on (AZO) substrate doped with aluminum oxide by low temperature hydrothermal method. ZnO nanoscale arrays with different morphologies and optical properties were prepared. The effects of NH_4NO_3 and In (NO_3) _ 3 on the structure and optical properties of ZnO nanocolumn arrays were investigated by scanning electron microscopy (SEM), transmission spectroscopy and photoluminescence spectroscopy. The results show that the addition of In (NO_3) _ 3 in the solution can significantly reduce the density of the ZnO nanorods and increase the spacing between the nanorods, so it can be used as an antireflective layer for solar cells. By controlling the ratio of NH_4NO_3 to In (NO_3) _ 3 in the reaction solution, the optical band gap width of the prepared ZnO nanocolumn can be controlled in the range of 3.35 ~ 3.62 EV.
【作者单位】： 北京市纳米结构薄膜太阳能电池工程技术研究中心北京低碳清洁能源研究所;
【基金】：国家自然科学基金项目(61404007) 北京市优秀人才培养资助项目(2015000021223ZK38)
【分类号】：TB383.1;TM914.4
本文编号：2363724
[Abstract]:In this paper, NH_4NO_3 and In (NO_3) _ 3 were introduced in the solution of the reaction of zinc acetate (ZnAc_2) with hexamethylenetetramine (HMTA) on (AZO) substrate doped with aluminum oxide by low temperature hydrothermal method. ZnO nanoscale arrays with different morphologies and optical properties were prepared. The effects of NH_4NO_3 and In (NO_3) _ 3 on the structure and optical properties of ZnO nanocolumn arrays were investigated by scanning electron microscopy (SEM), transmission spectroscopy and photoluminescence spectroscopy. The results show that the addition of In (NO_3) _ 3 in the solution can significantly reduce the density of the ZnO nanorods and increase the spacing between the nanorods, so it can be used as an antireflective layer for solar cells. By controlling the ratio of NH_4NO_3 to In (NO_3) _ 3 in the reaction solution, the optical band gap width of the prepared ZnO nanocolumn can be controlled in the range of 3.35 ~ 3.62 EV.
【作者单位】： 北京市纳米结构薄膜太阳能电池工程技术研究中心北京低碳清洁能源研究所;
【基金】：国家自然科学基金项目(61404007) 北京市优秀人才培养资助项目(2015000021223ZK38)
【分类号】：TB383.1;TM914.4
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