Polyethylene glycol assisted growth of Sn-doped ZnO nanorod arrays prepared via sol-gel immersion method

2018 ◽  
Author(s):  
A. S. Ismail ◽  
M. H. Mamat ◽  
M. F. Malek ◽  
S. A. Saidi ◽  
M. M. Yusoff ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Sol Gel ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Immersion Method ◽  
Doped Zno

Synthesis of Al-Doped ZnO Nanorod Arrays on Al-Doped ZnO Seed Layer and their Properties

2015 ◽  
Vol 1109 ◽  
pp. 266-270
Author(s):  
M.N. Wahida ◽  
M.H. Mamat ◽  
Mohamad Rusop
Keyword(s):  
Seed Layer ◽  
Sol Gel ◽  
Zinc Nitrate ◽  
Nitrate Hexahydrate ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Immersion Method ◽  
Uv Emission ◽  
Doped Zno

Aluminium (Al)-doped zinc oxide (ZnO) nanorod arrays have been synthesized on a glass substrate, where the seed layer is Al-doped ZnO thin film as well, using the sonicated sol–gel immersion method. The nanorods structure was synthesized by preparing a solution 0.0026 M of zinc nitrate hexahydrate (Zn (NO3)2·6H2O, 98%, Systerm) as a precursor, 0.1 M hexamethylenetetramine (HMT, C6H12N4, 99%, Aldrich) as a stabilizer and 0.001M aluminum nitrate nonahydrate (Al (NO3)3∙9H2O, 98%, Analar) as a dopant, dissolved in deionized (DI) water. The resistivity is 7626.72 Ωcm and the conductivity is 1.31 x 10-4 Scm-1. The peak of UV emission of the sample is at 380 nm.

scholarly journals Fabrication of Intrinsic Zinc Oxide-Coated, Aluminium-Doped Zinc Oxide Nanorod Array-Based Ultraviolet Photoconductive Sensors

2015 ◽  
Vol 773-774 ◽  
pp. 696-700
Author(s):  
Mohamad Hafiz Mamat ◽  
Mohd Firdaus Malek ◽  
N.N. Hafizah ◽  
Nor Diyana Md Sin ◽  
I. Saurdi ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Sol Gel ◽  
Rf Magnetron Sputtering ◽  
Nanorod Array ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Immersion Method ◽  
Doped Zno ◽  
And Performance

Fabrication and performance of metal-semiconductor-metal (MSM)–type intrinsic zinc oxide-coated, aluminium-doped ZnO nanorod array-based ultraviolet photoconductive sensors were reported and discussed. The Al-doped ZnO nanorod arrays were prepared using sonicated sol-gel immersion method. The coating process of intrinsic ZnO onto Al-doped ZnO nanorod arrays was performed using radio-frequency (RF) magnetron sputtering at different deposition times varying from 0 to 10 min. We observed that responsivity of the sensors decreased with increasing intrinsic ZnO deposition time, decreasing from 4.81 A/W without coating to 1.37 A/W after 10 min of coating. Interestingly, the sensitivity of the sensors improved with intrinsic ZnO coating, having a maximum value of 19.0 after 1 min coating.

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.

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.

scholarly journals Preparation of Aligned ZnO Nanorod Arrays on Sn-Doped ZnO Thin Films by Sonicated Sol-Gel Immersion Fabricated for Dye-Sensitized Solar Cell

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
I. Saurdi ◽  
M. H. Mamat ◽  
M. F. Malek ◽  
M. Rusop
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Sol Gel ◽  
Visible Region ◽  
Zno Thin Films ◽  
Zno Nanorod ◽  
Zno Thin Film ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Doped Zno

Aligned ZnO Nanorod arrays are deposited on the Sn-doped ZnO thin film via sonicated sol-gel immersion method. The structural, optical, and electrical properties of the Sn-doped ZnO thin films were investigated. Results show that the Sn-doped ZnO thin films with small grain size (~20 nm), high average transmittance (96%) in visible region, and good resistivity7.7 × 102 Ω·cm are obtained for 2 at.% Sn doping concentration. The aligned ZnO nanorod arrays with large surface area were also obtained for 2 at.% Sn-doped ZnO thin film. They were grown on sol-gel derived Sn-doped ZnO thin film, which acts as a seed layer, via sonicated sol-gel immersion method. The grown aligned ZnO nanorod arrays show high transmittance at visible region. The fabricated dye-sensitised solar cell based on the 2.0 at.% Sn-doped ZnO thin film with aligned ZnO nanorod arrays exhibits improved current density, open-circuit voltage, fill factor, and conversion efficiency compared with the undoped ZnO and 1 at.% Sn-doped ZnO thin films.

Nonstoichiometric Zinc Oxide Nanorod Arrays Doped Co or Ni as Effective Antimicrobial Materials

2012 ◽  
Vol 518-523 ◽  
pp. 760-763
Author(s):  
Chang Yun Chen ◽  
Quan Zhan Chen ◽  
Mei Shi ◽  
Feng Zhou ◽  
Chun Hua ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Functional Nanomaterials ◽  
Antimicrobial Materials ◽  
Doped Zno

Nonstoichiometric Zinc oxide (ZnO) nanorod arrays doped Co or Ni can be easily obtained by calicining soaked ZnO nanorod arrays. More importantly, the nonstoichiometric doped ZnO nanoarrays have more effective antimicrobial than pure ZnO nanoarrays, which means we can obtain a kind of promising new effective functional nanomaterials.

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