Browsing by Subject "Zinc oxide"
Now showing items 1-20 of 23
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Catalytic ozonation for sludge disintegration
(Universiti Malaysia Perlis (UniMAP), 2014-06)Processing and disposal of excess sludge is one of the most serious problem encountered in wastewater treatment in terms of environment, finance and technology. This project research studied the catalytic ozonation for ... -
The characterization of Al Bond pad surface treatment in Electroless Nickel Immersion Gold (ENIG) deposition
(Science Publications, 2007)This study reports a number of experiments that were designed to characterize aluminum bond pad surfaces prior to electroless nickel immersion gold (ENIG). In the ENIG process, aluminum bond pads need special treatment ... -
Computational simulation of ultraviolet ZnO diode laser
(IOP Publishing Ltd, 2013)This article deals with a mathematical technique for the study of functionality of semiconductor laser, by its rate equations, to be used in the simulation of high speed optical systems. We describe the development of ... -
Decolorization and mineralization of Batik wastewater through solar photocatalytic process
(Penerbit Universiti Kebangsaan Malaysia, 2015-04-01)In this study, the photocatalytic degradation of batik wastewater in the presence of zinc oxide (ZnO) as photocatalyst was investigated. The effect of various operating parameters, such as pH of batik wastewater, catalyst ... -
Degradation of phenol through solar-photocatalytic treatment by zinc oxide in aqueous solution
(Taylor and Francis Ltd., 2015-05-08)Phenol-containing wastewater is only allowed in a very small amount either in sewage or industrial effluent due to the hazardous effect towards the environment. The objective of this study was to investigate the photocatalytic ... -
Effect of different solvents on the structural and optical properties of zinc oxide thin films for optoelectronic applications
(Elsevier, 2014-01)Zinc oxide (ZnO) seed solutions were prepared using 4 different solvents, namely, methanol (MeOH), ethanol (EtOH), isopropyl alcohol (IPA) and 2-methoxyethanol (2-ME). The prepared seed solutions were used to synthesize ... -
The effect of seeding method on the growth of zinc oxide nanorods
(Universiti Malaysia Perlis (UniMAP), 2023-01)The paper presents the investigation of the method of seeding process for the growth of zinc oxide (ZnO) nanorods (NRs) on the glass substrate as an electron transport layer (ETL) for solar cells. The ZnO NRs were grown ... -
The effect of sintering temperature to the properties of zinc oxide
(Trans Tech Publications, 2013)In this paper, different sintering temperature used to study the influence of temperature on the structural and thermal properties of zinc oxide (ZnO). On this research, the sample was prepared by solid-state method for ... -
Effects of ageing time of ZnO sol on properties of ZnO films by sol gel spin coating
(Universiti Malaysia Perlis, 2015)In recent years, there are many techniques developed to synthesize zinc oxide (ZnO) films. However, among the synthesis methods available, sol-gel technique has the most advantageous which offers cost effective features. ... -
Effects of calcination temperature and zinc-source concentration on chemical-solution synthesized ZnO nanorods
(Electrochemical Society, 2006)In this paper, ZnO nanoparticles, in particular nanorods, were prepared by a time-saving and a cost effective chemical-solution process. Zinc acetate dehydrates, 2-propanol and diethanolamine were used as the source to ... -
The effects of multiple zincation process on Aluminum Bond Pad surface for Electroless Nickel Immersion Gold deposition
(American Society of Mechanical Engineers (ASME), 2006-09)This paper reports the effects of a multiple zincation processon the Al bond pad surface prior to electroless nickel immersion gold deposition. The study of multiple zincation comprises the surface topogtaphy and morphology ... -
Electrodeposited ZnO-nanowire/Cu2O photovoltaic device with highly resistive ZnO intermediate layer
(American Chemical Society, 2014-07)Cl-doped ZnO-nanowire (Cl:ZnO-nws)/Cu2O photovoltaic devices were prepared by electrodeposition in aqueous solutions, and the effects of the insertion of the highly resistive ZnO (i-ZnO) layer has been demonstrated by an ... -
Experimental and theoretical investigations of structural properties of nanostructured Co-doped ZnO films grown by pulsed laser deposition
(Elsevier Ltd., 2012-06-22)The nanostructured Co-doped ZnO films on glass substrates prepared by pulsed laser deposition are fabricated. The effect of doping on the structural properties of ZnO:Co films have been investigated using X-ray diffraction ... -
Investigation of structural, morphological and optical properties of sulfur doped zinc oxide nanorod
(Universiti Malaysia Perlis (UniMAP), 2020-12)In this study, seed-mediated hydrothermal methods has been used to fabricate sulfur-doped zinc oxide (S-ZnO) thin films with various atomic concentration of sulfur (S) (0 at.%, 1 at.%, 2.5 at.%, 5 at.% and 10 at.%). The ... -
Microstructure of aluminium-magnesium trisilicate (M-T-S) and aluminium zinc oxide (ZnO) composite by using powder metallurgy method
(Universiti Malaysia Perlis (UniMAP)Centre for Graduate Studies, 2010-10-16)The raw powder of aluminium, magnesium trisilicate (M-T-S) and zinc oxide was characterize using Scanning electron Microscope(SEM) and X-ray Diffraction (XRD)before being mixed. Composite aluminium with M-T-S and ... -
Photocatalytic activity of zinc oxide (ZnO) synthesized through different methods
(Taylor and Francis Ltd., 2016-06)Derivatives of phenol are considered as part of the persistent organic pollutants with endocrine effects persist in the environment and resist to bio-degradation which is difficult to be degraded. The objective of this ... -
Preparation of ZnO nanodisks using hydrothermal method and sensing to reductive gases
(Springer Science+Business Media New York, 2014-10)ZnO nanodisks exhibiting regular hexagonal structures were successfully synthesized using two surfactants via a hydrothermal method. The surfactants, namely, cetyltrimethylammonium bromide and sodium dodecyl sulfate, had ... -
Sol-gel derived ZnO nanoparticulate films for ultraviolet photodetector (UV) applications
(Elsevier GmbH, 2013-11)Zinc oxide nanoparticles based UV detector was fabricated on thermally oxidized silicon substrate. ZnO nanoparticle films were deposited using sol-gel route. The seed solution was prepared using two different solvents ... -
Study of zinc oxide films on SiO2/Si substrate by sol-gel spin coating method for pH measurement
(Trans Tech Publications, 2013)This In this work, zinc oxide film was deposited onto the SiO2/Si substrate with low-cost sol-gel spin coating method. Zinc oxide thin film was deposited on the silver interdigit elctrodes for the pH measurement. The surface ... -
Substrate temperature and background pressure effects on nanostructured zinc oxide thin films for thermoelectric applications
(Universiti Malaysia Perlis, 2015)Zinc oxide (ZnO) thin films were grown on glass substrate by pulsed laser deposition (PLD) at different substrate temperature ranging from room temperature (RT) to 300ºC and various oxygen background pressures ranging from ...