Effects of substrates and seed layers on solution growing ZnO nanorods
Effects of substrates and seed layers on solution growing ZnO nanorods
复制标题
DOI：
10.1007/s10008-009-0894-2
复制
发表时间：
2010-06
影响因子：
2.5
通讯作者：
Zhifeng Liu;J. Ya;L. E
中科院分区：
文献类型：
--
作者：
Zhifeng Liu;J. Ya;L. E
采用两步法制备了取向ZnO纳米棒，包括在不同衬底上合成种子层和在硝酸锌和六次甲基四胺水溶液中低温生长ZnO纳米棒。详细比较了溶胶-凝胶法和电化学沉积法制备的种子层对ZnO纳米棒取向和形貌的影响。找到了生长高度取向ZnO纳米棒阵列的最佳工艺参数，并揭示了其形成机理。此外，作为ZnO纳米棒薄膜的应用，成功制备了基于其的染料敏化太阳能电池。由于良好的纳米结构，在-700 mV沉积的ED-ZnO种子层上生长的ZnO纳米棒的电池性能高于具有SG-ZnO种子层的那些。
Oriented ZnO nanorods were fabricated in a two-step approach, including the synthesis of seed layer on different substrates and the growth of ZnO nanorods in aqueous solutions of zinc nitrate and hexamethylenetetramine at low temperature. The effects of seed layer synthesized by different methods, sol–gel method and electrochemical deposition method, on the orientation and morphologies of ZnO nanorods were compared in detail. The optimal parameters for the growth of highly oriented ZnO nanorod arrays were found and the forming mechanism was also disclosed. Furthermore, as an application of the ZnO nanorod film, dye-sensitized solar cells based on it were successfully fabricated. The cell performances of ZnO nanorods grown on ED-ZnO seed layer deposited at −700 mV were higher than those with SG-ZnO seed layer due to good nanostructure.