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Waste cooking oil is one of the cause pollutions effect for aquatic life where it discharges to the river system. Whereas, palm oil were claimed to be more efficient compared to conventional fossil carbon sources including ethanol, methane, ethylene and acetylene. Graphene successfully established on the Ni surface due to segregation and precipitation of abundance loading of carbon originated from...
Organic semiconductor have been discovered in different application devices such as organic light emitting diodes (OLEDs). Poly [2-methoxy-5(2′-ethylhexyloxy)-1, 4-phenylenevinylene], MEH-PPV widely used in this device because its ability to produce a good optical quality films. The MEH-PPV was prepared on glass substrate by spin coating method. The thin film was investigated with different concentration...
Amorphous carbon thin films were deposited on glass substrates by using low positive bias voltage in the range of +20V to +50V at 500°C in 1 hour deposition. The effect of low positive bias on electrical properties of nitrogen doped amorphous carbon thin films were determined. The nitrogen doped amorphous carbon thin films were characterized by current-voltage measurement, surface profiler, UV-VIS/NIR...
In this paper, we report the electrical conductivity of nanocomposited MEH-PPV:I-MWNT thin film by varying the composition of Iodine doped multi-walled nanotubes (I-MWNT) in MEH-PPV matrix from 0, 2 and 4 wt%. Electrical conductivity showed increasing in value as the composition of I-MWNT increased from 0, 2 to 4 wt%. The value of conductivity is very outstanding when the polymer was blended with...
Cobalt-doped titanium dioxide thin films have been successfully deposited using sol-gel spin coating technique. The doping process has been done by mixing cobalt source into TiO2 sol-gel. The doping concentration has been varied and its effects to the structural, electrical, and optical properties of the thin films have been studied. Reduction in electrical resistivity is observed with the increase...
Poly (methy-methacrylate) (PMMA) thin films were deposited by sol-gel spin coating method on glass substrates. PMMA powder was dissolved in 60ml Toluene with the concentration of the PMMA in the solution was varied from 30 ∼ 120 mg. Besides the PMMA concentration, we also studied the effect of the thin films thickness on the electrical properties. The results for electrical properties showed that...
In this work, we report on the effects of drying temperature on the electrical and structural properties of MgO thin films. The MgO thin films have been prepared on glass substrates using sol-gel spin coating method. The thin films dried at four different temperatures were then subjected to electrical and structural characterizations using two point probes solar simulator (BUKOH KEIKI-EP2000), impedance/gain...
Titanium dioxide in the anatase phase has been synthesized by the sol-gel method. Then, the solution was deposited onto glass substrate using spin coating technique. These thin films are then annealed at a temperature ranged from 350°C to 550°C. The optical and topology of the thin film was characterized using UV-VIS and AFM. Based on the readings from UV-VIS spectroscopy, it is found that transmittance...
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