Effect of seed layer on the growth of well-aligned ZnO nanowires

Autor: Jun-Sheng Wu, Cheng-Zhi Wu, I-Tseng Tang, Shi-Ming Peng, Liang-Wen Ji, Wei-Shun Shih
Rok vydání: 2009
Předmět:
Zdroj: Journal of Physics and Chemistry of Solids. 70:1359-1362
ISSN: 0022-3697
DOI: 10.1016/j.jpcs.2009.07.029
Popis: We demonstrate that vertical well-aligned crystalline ZnO nanowire arrays were grown on ZnO/glass substrates by a low-temperature solution method. Different thicknesses of ZnO seed layers on glass substrates were prepared by radio-frequency sputtering. In this work it was found that the morphology of ZnO nanowires strongly depends on the thickness of ZnO seed layers. The average diameter of nanowires is increased from 50 to 130 nm and the nanowire density is decreased from 110 to 60 μm −2 while the seed layer thickness is varied from 20 to 1000 nm. The improved control of the morphology of ZnO nanowire arrays may lead to an enhanced carrier collection of hybrid polymer photovoltaic devices based on ZnO.
Databáze: OpenAIRE