Hydrothermal growth of flower-like ZnO nanostructures on porous silicon substrate

Flower-like zinc oxide (ZnO) nanostructures were successfully synthesized on porous silicon substrates using a simple hydrothermal method. The characteristics of the ZnO nanostructures were investigated through field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and photolu...

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书目详细资料
发表在:Journal of Molecular Structure
主要作者: 2-s2.0-84903193000
格式: 文件
语言:English
出版: Elsevier 2014
在线阅读:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903193000&doi=10.1016%2fj.molstruc.2014.05.067&partnerID=40&md5=6e4106b05a3a45ccdd2053190c204038
实物特征
总结:Flower-like zinc oxide (ZnO) nanostructures were successfully synthesized on porous silicon substrates using a simple hydrothermal method. The characteristics of the ZnO nanostructures were investigated through field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), and photoluminescence (PL). FESEM images revealed shape transitions from nanoflowers comprising nanoparticles to well-faceted hexagonal ZnO nanostructures when the precursor molarity increased from 0.01 to 0.20 M. The strong intensity and narrow width of XRD peaks indicate that ZnO nanostructures with high molarities have good crystallinity. The PL spectra indicate that ultraviolet emissions shift slightly toward lower wavelengths with increasing precursor solution molarity and that the intensity increases with improvement in ZnO crystallization. © 2014 Elsevier B.V. All rights reserved.
ISSN:222860
DOI:10.1016/j.molstruc.2014.05.067