Growth of ZnO nanorod arrays by one-step sol–gel process

ZnO nanorods are usually formed by two-step method. In the first step, a seed layer is coated on substrate and then the second treatment by hydrothermal method is employed for formation of nanorods. Here, we report that ZnO nanorods can be directly coated on glass substrates by sol–gel dip coating t...

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Published inJournal of sol-gel science and technology Vol. 80; no. 2; pp. 389 - 395
Main Authors Aslan, Ferhat, Tumbul, Ahmet, Göktaş, Abdullah, Budakoğlu, Refika, Mutlu, İbrahim Halil
Format Journal Article
LanguageEnglish
Published New York Springer US 01.11.2016
Springer Nature B.V
Subjects
Ceramics
Chemistry and Materials Science
Coating effects
colloids
Composites
etc.
fibers
Glass
Glass substrates
Hall effect
Immersion coating
Inorganic Chemistry
Materials Science
Nanorods
Nanotechnology
Natural Materials
Optical and Electronic Materials
Optical properties
Original Paper: Nano-structured materials (particles
Precursors
Sol-gel processes
X-ray diffraction
Zinc chloride
Zinc oxide
Zinc oxide
Dip coating
One-step solution method
Nanorods
Sol gel
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Summary:ZnO nanorods are usually formed by two-step method. In the first step, a seed layer is coated on substrate and then the second treatment by hydrothermal method is employed for formation of nanorods. Here, we report that ZnO nanorods can be directly coated on glass substrates by sol–gel dip coating technique without the second treatment. The effect of coating layers on morphological, structural, electrical, and optical properties was studied. According to the cross-sectional SEM images of the produced ZnO nanorods, a seed layer was spontaneously observed. The diameter of the ZnO nanorods was varied between 200 nm and 1 µm with coating thickness. The effect of the zinc nitrate tetrahydrate and zinc chloride precursors on the preparation of the ZnO nanorods was also investigated. And, it was found that the zinc chloride precursor exhibited formation of nanorods on the glass substrates. According to the Hall effect measurements, the ZnO nanorods exhibited mobility as high as 95 cm 2 (Vs) −1 . The X-ray diffraction and electrical studies indicated that highly pure crystalline ZnO nanorods could be obtained by the one-step solution method. Graphical Abstract
ISSN:0928-0707
1573-4846
DOI:10.1007/s10971-016-4131-z