Synthesis of ZnO nanoplates decorated rhombus-shaped ZnO nanorods and their application in solar cells

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• 作者：Yufu Zhu^a ; ^{yufu_zhu@163.com" class="auth_mail} ; Wenzhong Shen^b
• 关键词：Semiconductor nanostructure ; Chemical synthesis ; Photovoltaic application
• 刊名：Physica E
• 出版年：May, 2014
• 年：2014
• 卷：59
• 期：Complete
• 页码：110-116
• 全文大小：5024 K

文摘

Novel nanostructures of ZnF(OH) nanoplates decorated rhombus-shaped ZnF(OH) nanorods were fabricated. The obtained precursors were transformed by calcination to porous hierarchical ZnO nanostructures with the original morphologies retained. Field emission scanning electron microscope images exhibit that the nanoplates are grown in the interstices between the nanorods and on the top of the nanorods. The structure and composition of the obtained products have been confirmed by transmission electron microscope and X-ray diffraction measurements. The obtained ZnO nanostructures have been successfully used in solar cells. The light-to-electricity conversion results show that the complex nanostructures exhibit a power conversion efficiency of 1.36% with a photoelectrode thickness of 4.2 碌m, which is comparable to those based on 40 碌m vertically aligned hexagonal-shaped ZnO nanowire array photoelectrodes. These results indicate that the synthesized ZnO nanoplate decorated rhombus-shaped ZnO nanorod nanostructures are more suitable for application as a photoelectrode in solar cells.