Effect of Temperature on Structural and Optical Properties of ZnO Nanorods by Hydrothermal Method

2013 ◽  
Vol 591 ◽  
pp. 293-296 ◽  
Author(s):  
Xiao Yan Fei ◽  
Jun Luo ◽  
Shu Wang Duo ◽  
Hao Zhang ◽  
Xiang Min Xu ◽  
...  
Keyword(s):  
Optical Properties ◽  
Hydrothermal Method ◽  
Zno Nanorods ◽  
Hexagonal Structure ◽  
Effect Of Temperature ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
Sem Images ◽  
Zno Crystal ◽  
Ir Study

The ZnO nanorods were prepared at 130 °C, 160 °C and 190 °C for 6 h by hydrothermal method. The structural and optical properties of ZnO nanorods were invesitigated by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). XRD pattern analysis showed that the ZnO nanorods are the hexagonal structure (space group P63 mc). No other crystal phases, such as Zn and Zn (OH)2 were detected. FT-IR study identified the sharp peak that appeared at 573 cm-1 is related with the ZnO stretching mode. Also, SEM images revealed that the diameter of a single ZnO crystal ranges from 100 to 300 nm and the length ranges from 1 to 3 μm.

Influence of Growth Conditions on Morphology of ZnO Nanorods by Low-Temperature Hydrothermal Method

2016 ◽  
Vol 675-676 ◽  
pp. 53-56
Author(s):  
Supawadee Pokai ◽  
Puenisara Limnonthakul ◽  
Mati Horprathum ◽  
Sukon Kalasung ◽  
Pitak Eiamchai ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Hydrothermal Method ◽  
Zno Nanorods ◽  
Cost Effective ◽  
Growth Conditions ◽  
Growth Time ◽  
Thermoelectric Device ◽  
X Ray Diffraction ◽  
Sem Images ◽  
X Ray

Zinc oxide (ZnO) nanorods (NRs) promise high potentials in several applications, such as photovoltaic device, thermoelectric device, sensor and solar cell. In this research, the vertical alignment of ZnO NRs was fabricated by hydrothermal method with various precursor concentrations and growth time on different seed layers (ZnO and Au), which deposited on silicon wafer substrate (100). The crystalline structure and morphology of ZnO NRs have been characterized by x-ray diffraction (XRD) and field emission scanning electron microscopy (FE-SEM) techniques, respectively. The x-ray diffraction pattern shows that the prepared samples have a strong preferred orientation (002) plane. FE-SEM images of the ZnO NRs, it found that the density and aspect ratio were strongly influenced by the seed layer and precursor concentration. In addition, the aspect ratio of ZnO NRs was increased with increasing growth time. This study provides a cost effective method for the fabrication of well aligned ZnO NRs for nano-electronic devices.

Effect of lattice strain on structural and optical properties of ZnO nanorods grown by hydrothermal method

2016 ◽  
Author(s):  
Khyati Gautam ◽  
Inderpreet Singh ◽  
Varun Singh Nirwal ◽  
Joginder Singh ◽  
Koteswara Rao Peta ◽  
...  
Keyword(s):  
Optical Properties ◽  
Hydrothermal Method ◽  
Lattice Strain ◽  
Zno Nanorods ◽  
Structural And Optical Properties

Influence of Substrate Etching on Structural and Optical Properties of ZnO Nanorods Grown by Hydrothermal Method

2012 ◽  
Vol 460 ◽  
pp. 147-150
Author(s):  
Qiu Ming Fu ◽  
Jian Peng Wu ◽  
Zhi Bin Ma ◽  
Ya Fang Tu
Keyword(s):  
Hydrothermal Method ◽  
Photoluminescence Spectrum ◽  
Zno Nanorods ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
X Ray ◽  
Morphology And Structure ◽  
Influence Of Substrate ◽  
Scanning Electron

ZnO nanostructures were prepared on Si and AlN substrates with and without etching by hydrothermal method. The influences of substrate etching on the morphology and structure were investigated by scanning electron microscopy, X-ray diffraction, Raman microscopy, and photoluminescence spectrum. The results show that the morphology and the photoluminescence properties of ZnO nanorods are significantly influenced by substrate etching.

scholarly journals Fast synthesis, morphology transformation, structural and optical properties of ZnO nanorods grown by seed-free hydrothermal method

2014 ◽  
Vol 211 (11) ◽  
pp. 2611-2615 ◽  
Author(s):  
Chan Oeurn Chey ◽  
Hatim Alnoor ◽  
Mazhar Ali Abbasi ◽  
Omer Nur ◽  
Magnus Willander
Keyword(s):  
Optical Properties ◽  
Hydrothermal Method ◽  
Zno Nanorods ◽  
Structural And Optical Properties ◽  
Fast Synthesis

Structural and Optical Properties ZnO Nanorods Prepared by Hydrothermal Method

2018 ◽  
Vol 10 (1) ◽  
pp. 01004-1-01004-4 ◽  
Author(s):  
S. Wahyuningsih ◽  
◽  
F. N. Ainiy ◽  
A. H. Ramelan ◽  
◽  
...  
Keyword(s):  
Optical Properties ◽  
Hydrothermal Method ◽  
Zno Nanorods ◽  
Structural And Optical Properties

Hydrothermal method for Y2O3:Eu3+ uniform nanophosphors with different templates

2019 ◽  
Vol 33 (20) ◽  
pp. 1950227
Author(s):  
Xue Jiang ◽  
Weihong Wu ◽  
Yuqian Li ◽  
Xiaoqing Guo ◽  
Nan Wang ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Phenol Formaldehyde ◽  
Gum Arabic ◽  
Phenol Formaldehyde Resin ◽  
Formaldehyde Resin ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
Sem Images ◽  
X Ray ◽  
Xrd Patterns

In this study, [Formula: see text]-doped yttrium oxide nanophosphors were prepared using the hydrothermal method assisting with the polyacrylic acid (PAA), phenol formaldehyde resin precursor (PF), and gum arabic (GA), respectively and their structural and optical properties were studied. X-ray diffraction (XRD) patterns of the samples can be well indexed to the cubic structure. Additionally, scanning electron microscopy (SEM) images showed that the samples were different morphologies, via combining with different templates. The luminescence results revealed that the addition of templates have a significant influence on the luminescence properties of [Formula: see text]-doped [Formula: see text].

Substrate Temperature Effect on Structural and Optical Properties of ZnO Thin Films Deposited by Spray Pyrolysis

2019 ◽  
Vol 397 ◽  
pp. 1-7
Author(s):  
Hassene Nezzari ◽  
Riad Saidi ◽  
Adel Taabouche ◽  
Meriem Messaoudi ◽  
Mohamed Salah Aida
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Substrate Temperature ◽  
Hexagonal Structure ◽  
Zno Thin Films ◽  
X Ray Diffraction ◽  
Structural And Optical Properties ◽  
Glass Substrates ◽  
Uv Visible ◽  
Heated Glass

In this work, ZnO thin films grown on heated glass substrates in a temperature range of 300 to 500 °C with a 50°C step. The prepared solution is composed of methanol and zinc acetate Zn(CH3COO)2.2H2O. ZnO thin films are deposited by pyrolysis spray technique, our work focuses on the study of the substrate temperature influence on the structural and optical properties of these layers. Therefore, The X-ray diffraction, showed a Wurtzit hexagonal structure of elaborated films, with (002) as a preferred orientation, and a grain size of 64 to 74 nm. The optical transmission spectroscopy UV-Visible, illustrated an increase of optical band gap from 3.19 to 3.25 eV, proportionally with the substrate temperature.

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