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The objective of this research is to evaluate the effect of different molar concentration of the copper oxide (CuO) thin films deposited using spin-coating technique. The CuO thin films were deposited on 500µm quartz substrates. The molar concentration of CuO solutions used were 0.3M, 0.35M, 0.4M, 0.45M and 0.5M were prepared using sol-gel method. These solutions were formed by dissolving copper acetate...
Nanocomposite based on zinc oxide (ZnO) nanostructures and poly [2-methoxy-5(2'-ethylhexyloxy)-phenylene vinylene) (MEH-PPV) of various weight percent have been obtained using sol-gel method. The substrates were deposit at 0.1 wt% to 0.4 wt% of ZnO with pure MEH-PPV to investigate the concentration effect of MEH-PPV/ZnO nanocomposite. The structural properties were characterized using FESEM and AFM...
Light-emitting diode (LED) applications consist of various materials. One of the materials used is polymer. In this study, MEH-PPV known as poly[2-methoxy-5-(2'-ethyl-hexyloxy)-1, 4-phenylenevinylene] was used. The objective of this paper is to characterize the electrical and optical properties of MEH-PPV thin film by using sol-gel method. The scope is to study only the MEH-PPV thin film without implementation...
Zinc Oxide (ZnO) is a metal oxide semiconductor that used for organic light emitting diode (OLEDs) applications. The ZnO nanotetrapods nanotetrapod of various time depositions has been synthesized using thermal chemical vapor deposition (thermal-CVD) method. In this study, the synthesizations were deposit at 30 minutes and 50 minutes to investigate the time deposition effect of ZnO nanotetrapods....
Nanotetrapod zinc oxide (ZnO) thin films have been deposited by thermal chemical vapor deposition (TCVD) technique. The films were deposited at 700°C and 800°C to study the temperature effect of physical properties of the nanotetrapod ZnO thin films. From XRD result shows the highest peak can observed from sample 700°C at (002) orientation. It was found that the size of nanotetrapod increased with...
Zinc oxide (ZnO) thin films were deposited by thermal chemical vapor deposition (TCVD) method. Gold (Au) metal was used as a catalyst to improve the growth of tetrapod ZnO structures. In this study, the substrates were deposited at 750°C to 800°C to study the temperature effect of tetrapod ZnO thin films. The surface morphology of ZnO thin films were characterized using field emission scanning electron...
In this work, zinc oxide (ZnO) nanostructure was synthesized by thermal vapor deposition (TCVD) on various kinds of metal catalyst namely, gold (Au) and platinum (Pt). The thicknesses of the metal catalyst were varied (10 nm and 15 nm) to investigate the shape of the ZnO nanostructures. The metal catalyst was used as seed layer to facilitate the nucleation site for nanostructured growth. FESEM images...
Layer-by-layer ZnO nanoparticles thin films were deposited using sol-gel spin coating technique. Zinc acetate dihydrate, 2-methoxyethanol and monoethanolamine were used in the ZnO solution. Different numbers of film layers were employed to study their effects to the physical, electrical and optical properties of the thin films. XRD patterns showed that the films were single crystalline with highly...
Zinc Oxide (ZnO) thin films were deposited by thermal chemical vapor deposition (TCVD) method using a two furnace system. Sol-gel spin coated ZnO templates were used to enhance the growth of the nanoparticles. The thin films were deposited at 400 ∼ 500°C to study the effect of the deposition temperature on the properties of the thin films. The samples were characterized using current-voltage (I–V)...
In this paper, composites made by incorporation of ZnO nanoparticles of different concentrations in MEH-PPV was studied. MEH-PPV is a soluble conjugated polymer, one can incorporate oxide nanoparticles into MEH-PPV directly. Optical properties of the hybrid materials and the influence of the nature on the behavior of the composites was investigated and discussed. The polymer was dissolved in tetrahydrofuran...
The paper investigates the influence of different aluminum doping concentration on the photoresponse characteristics of doped ZnO thin films. Aluminum doped ZnO (AZO) thin films have been prepared by sol-gel dip-coating technique on glass substrates. 0.4M sol of AZO were prepared using monoethanolamine (MEA) as the stabilizer, zinc acetate dehydrate (Zn(CH3COO)2.2H2O) as the precursor, 2-methoxyethanol...
ZnO thin films were deposited using thermal chemical vapor deposition (TCVD) using gold as the catalyst in a two furnaces system. Carbothermal technique is employed in this work where graphite was mixed into ZnO powder with 1:1 ratio as the precursor. Different thicknesses of gold were deposited on the substrate to study its effect to the properties of the thin films. The ZnO nanostructures were then...
This paper reports on the effect of annealing temperature on the photoluminescence (PL) properties of ZnO thin film. Sol-gel spin coating method was used to prepare the ZnO templates on silicon substrate. ZnO thin films were then deposited by thermal chemical vapor deposition technique by using Zinc Acetate dihydrate as a precursor. Deposited films are annealed at various temperatures; from 650°C...
Nanocomposite thin films consist of conjugated polymer; MEH-PPV and inorganic material; ZnO were deposited using low cost spin coating method. The thin films characteristics were investigated in term of their electrical and optical properties; as each of it were heated at different temperature. The electrical properties of the thin films were studied to identify whether the nanocomposite thin films...
Three different type of materials i.e Au, Pt, and Pd have been investigated as metal contact on Titanium Dioxide (TiO2) thin films. These metal contacts have been deposited using sputter coating method. Meanwhile sol-gel spin coating method has been chosen to deposits TiO2 thin film. The ohmic contact characteristic of the three materials has been studied using Current-Voltage measurement.
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