常洲,卢辉,马金福,杨少林,宁晓杰.柔性Ni网基底上电沉积制备ZnO纳米结构及其光电性能的研究[J].有色金属工程,2018,8(6):.
柔性Ni网基底上电沉积制备ZnO纳米结构及其光电性能的研究
Controllable preparation and photoelectrochemical properties of ZnO nanosutructure film electrodeposited on flexible Ni mesh
投稿时间:2017-10-09  修订日期:2018-01-17
DOI:
中文关键词:  电沉积  柔性Ni 网  ZnO  分级有序纳米结构  光电转换效率
英文关键词:Electrodeposition, flexible Ni mesh, ZnO, hierarchical nanostructure, photovoltaic performance
基金项目:宁夏自然科学基金(NZ16088);北方民族大学自治区级大学生创新训练计划项目 (NXCX2016187);北方民族大学重点科研项目(2015KJ28)
              
作者单位
常洲 北方民族大学 材料科学与工程学院
卢辉 北方民族大学 材料科学与工程学院
马金福 北方民族大学 材料科学与工程学院
杨少林 北方民族大学 材料科学与工程学院
宁晓杰 北方民族大学 材料科学与工程学院
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中文摘要:
      通过电化学沉积技术,以ZnCl2与O2为原料,在柔性金属Ni网基底上制备得到ZnO纳米棒阵列,后采用Zn (CH3COO)2胶体铺膜处理,再次电沉积得到ZnO分级有序纳米结构。并利用SEM、XRD、TEM等技术对合成样品的形貌、物相、结构进行表征,研究了不同制备条件对ZnO纳米薄膜形貌及光电性能的影响。结果表明:初级结构ZnO纳米棒经铺膜退火处理后,表面可形成均匀的纳米粒子晶种层,为次级结构的生长提供活性位点。再次电沉积后,生成的分级有序ZnO纳米结构具有更大的比表面积,大幅度提高染料的吸附量,相比于初级纳米结构其光电转换效率提高54%左右(由0.52%增大至0.80%)。
英文摘要:
      In this paper, well-defined hierarchical ZnO nanostructure were synthesized in large scale on flexible Ni mesh by a two-step facile electrodeposition method. In detail, the primary ZNRAs were firstly electrodeposited on Ni mesh, and then ZnO nanorod branches grew on the primary structures pre-coated with ZnO nanoparticle seed layer. The structure and morphology of the as-synthesized samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The effects of preparing conditions on the electrodeposition of ZnO nanostructure and related photoelectrochemical properties were investigated in detail. It is demonstrated that the dye-sensitized solar cell (DSSC) constructed by hierarchical ZnO nanostructures exhibited a relatively higher photo-to-electric conversion efficiency of 0.80% compared with that based on bare ZNRAs (0.52%). The improved performance may be attributed to the enhanced surface area for higher dye loading and light harvesting, which was caused by ZnO hierarchical nanostructures serving as photoanode materials.
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