Investigation of Stress and Electrical Properties of Air-Annealed and Oxygen-Annealed Aluminium-Doped Zinc Oxide Nanorod Arrays

2013 ◽  
Vol 832 ◽  
pp. 303-309
Author(s):  
M.H. Mamat ◽  
Nor Diyana Md Sin ◽  
I. Saurdi ◽  
N.N. Hafizah ◽  
Mohd Firdaus Malek ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Sol Gel ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
X Ray Diffraction ◽  
X Ray ◽  
Current Voltage ◽  
Vertically Aligned ◽  
Doped Zno

In this research, we prepared aluminium (Al)-doped ZnO nanorod arrays on the glass substrate using sonicated sol-gel method. These nanorod arrays were annealed at 500 °C in air and oxygen environment using thermal furnace. Field emission scanning electron microscopy (FESEM) image reveals that nanorod arrays were deposited vertically aligned on the substrate. The stress characteristics of air-annealed and oxygen-annealed Al-doped ZnO nanorod arrays were investigated using Raman spectroscopy and X-ray diffraction (XRD) measurement. The electrical properties of the samples were investigated using two-probe current-voltage (I-V) measurement system. The results show that annealing atmospheres greatly influenced the stress and electrical properties of the nanorod arrays.

Structural, Optical and Electrical Properties of Electrodeposited Sb-Doped ZnO Nanorod Arrays

2014 ◽  
Vol 125 ◽  
pp. 124-132 ◽  
Author(s):  
J.K. Liang ◽  
H.L. Su ◽  
C.L. Kuo ◽  
S.P. Kao ◽  
J.W. Cui ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Zno Nanorod ◽  
Optical And Electrical Properties ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Doped Zno

OPTICAL CHARACTERIZATION OF ZnO NANOROD ARRAYS GROWN FROM SOLUTION

2010 ◽  
Vol 09 (05) ◽  
pp. 447-451 ◽  
Author(s):  
WALTER WATER ◽  
TE-HUA FANG ◽  
LIANG-WEN JI ◽  
CHING-CHIN LEE
Keyword(s):  
Zno Nanorods ◽  
Zinc Nitrate ◽  
Nitrate Hexahydrate ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
X Ray Diffraction ◽  
Glass Substrates ◽  
Current Voltage ◽  
Ito Glass

ZnO nanorods were synthesized on ZnO / ITO glass substrates using an aqueous solution of zinc nitrate hexahydrate and hexamethylenetetramine. The effects of hexamethylenetetramine concentration on the crystalline structure and surface morphology of ZnO nanorods were investigated. X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to analyze the crystalline characteristics and microstructures of the nanorod arrays. Ultraviolet/visible spectroscopy and photoluminescence (PL) spectra were used to characterize the optical properties of ZnO nanorods. Larger and brighter photoluminescent ZnO nanorods were obtained from solutions with higher hexamethylenetetramine concentrations. A nanogenerator based on ZnO nanorod arrays was fabricated in the investigation. The nanogenerator's current–voltage characteristics with Schottky-like behavior were discussed.

Effects of Growth Time on Morphologies of ZnO Nanorod Arrays

2013 ◽  
Vol 421 ◽  
pp. 324-328
Author(s):  
Kang Zhao ◽  
Zhi Ming Wu ◽  
Rong Tang
Keyword(s):  
Zno Nanorods ◽  
Length Distribution ◽  
Growth Time ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
X Ray Diffraction ◽  
X Ray ◽  
Si Substrates ◽  
Seed Layers

well-aligned ZnO nanorod arrays (ZNRAs) grown on the ZnO seed layers coated p-silicon (p-Si) substrates in various times from 1.5 to 5 hr have been fabricated from aqueous solutions at low temperature. Morphologies, crystalline structure and optical transmission were investigated by a scanning electron microscope (SEM) and X-ray diffraction (XRD), respectively. The results showed that ZNRAs grew vertically from the substrates, having uniform thickness and length distribution, the average diameters and length of ZnO nanorods increased with increasing growth time below 3 hr. The XRD results showed that ZnO nanorods were wurtzite-structured (hexagonal) ZnO.

Synthesis and Sensing Properties of N-doped ZnO Nanorod Arrays on Quartz

2010 ◽  
Vol 1253 ◽  
Author(s):  
Boqian Yang ◽  
Xiaoyan Peng ◽  
Hongxin Zhang ◽  
Peterxian Feng ◽  
Marc Achermann
Keyword(s):  
Photoelectron Spectroscopy ◽  
Zno Nanorods ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
X Ray ◽  
Doped Zno ◽  
High Concentrations ◽  
Diffraction Patterns ◽  
Raman Scattering Spectra

AbstractUsing different pressures of nitrogen, N-doped ZnO nanorod arrays of various densities have been synthesized on quartz substrates by pulsed laser deposition techniques. The nanorods grow preferentially perpendicular to the quartz surface. X-ray diffraction patterns revealed some degradation of the crystal structure at elevated nitrogen pressures. High concentrations of nitrogen doping in ZnO nanorods were estimated by X-ray photoelectron spectroscopy. Raman scattering spectra confirmed the wurtzite structure of N-doped ZnO nanorods. A prototype sensor based on the N-doped ZnO nanorod arrays demonstrates a linear dependence of the conductivity with operating temperature and pressure of a test gas pollutant.

Microstructures and Electrical Properties of Carbon/Silica Nanocomposites: Influence of the Silica Nanoparticles

2020 ◽  
Vol 19 (06) ◽  
pp. 2050012
Author(s):  
Zainab Mefrah Elqahtani ◽  
Soumaya Gouadria ◽  
Fatemah Farraj Alharbi ◽  
K. Omri
Keyword(s):  
Heat Treatment ◽  
Electrical Properties ◽  
Amorphous Carbon ◽  
Sol Gel ◽  
Carbon Matrix ◽  
X Ray Diffraction ◽  
Electronic Microscopy ◽  
X Ray ◽  
Silica Nanocomposites ◽  
Current Voltage

In this work, the inorganic/organic a Carbon-Silica (C-S) nanocomposites in additional amorphous carbon matrix was successfully obtained through the sol–gel method, the two components are mixed in an effort to blend the best properties of both. The acquired C-S nanocomposites were characterized by X-ray diffraction (XRD). It was observed by Transmission Electronic Microscopy that nanoparticles with sizes from 14[Formula: see text]nm to 20[Formula: see text]nm. After heat treatment, we explore the electrical properties of the obtained C-S material. The current–voltage ([Formula: see text]–[Formula: see text]) and alternating current (ac) techniques in the temperature range (80–300[Formula: see text]K) was examined.

Large enhancement of X-ray excited luminescence in Ga-doped ZnO nanorod arrays by hydrogen annealing

2018 ◽  
Vol 433 ◽  
pp. 815-820 ◽  
Author(s):  
Qianli Li ◽  
Xiaoliln Liu ◽  
Mu Gu ◽  
Fengrui Li ◽  
Juannan Zhang ◽  
...  
Keyword(s):  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Hydrogen Annealing ◽  
X Ray ◽  
Large Enhancement ◽  
Doped Zno ◽  
Excited Luminescence

Photovoltaic Properties of Dye-Sensitized Solar Cells Using Novel Aligned ZnO Nanorod Arrays on Sn-Doped ZnO Seeded Catalyst with Different Aspect Ratio

2015 ◽  
Vol 1109 ◽  
pp. 281-285
Author(s):  
I. Saurdi ◽  
Mohamad Hafiz Mamat ◽  
A.K. Shafura ◽  
M.F. Malik ◽  
A. Ishak ◽  
...  
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Dye Sensitized Solar Cells ◽  
Zno Thin Films ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Photovoltaic Properties ◽  
Dye Sensitized ◽  
Doped Zno

The Sn-doped ZnO thin films were deposited on glass and ITO by sol gel Spin Coating technique. The Structural and electrical properties of Sn-doped ZnO thin films were studied and discussed. The Sn-doped ZnO thin film particle sizes were decreased whenever the doping concentration increased. Besides that, the resistivity 7.7 x 102 Ω.cm was obtained at 2 at.% Sn-doped thin films and aligned ZnO nanorod arrays with large surface area were grown on 2 at.% Sn-doped ZnO film. Therefore, dye sensitized solar cell at 2.0 at.% Sn-doped ZnO thin films with aligned ZnO Nanorod arrays have improved in the photocurrent density and conversion efficiency.

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