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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...
Titanium dioxide (TiO2) is an universal oxide material used in many applications such as optical sensing. TiO2 thin films have been investigated under various molarities concentration by dip coating technique. The characterization of the thin films at different molarities of concentrations were varied at 0.01M, 0.05M, 0.10M and 0.50M by Ultraviolet Visible Spectrometer (UV-VIS), Field Emission Scanning...
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...
In the production of nanostructured TiO2, the annealing temperature for the film is differed to clarify that by the use of different temperature in annealing the film, the best temperature to get a good mobility for the current flow can be found. There are 7 samples with different drying temperature and different annealing temperature. The ones with different drying are not annealed and the other...
Sol-gel method is used to deposit each of the Titanium Dioxide (TiO2) film coating layers to indicate the porosity and to see the thickness by each coating layers. The electrical properties were studied on the thickness variance. The surface morphologies of the prepared TiO2 film were observed by using Field Emission Scanning Electron Microscopy (FESEM) to investigate the evolution of TiO2 grains...
This paper discussed the effect of different composition ratio of Iodine doped multiwalled carbon nanotubes (I-MWCNTs) in MEH-PPV for organic solar cell applications. The I-MWCNTs compositions were varied from 0, 30, 50, 60 and 80 wt% and the effect to the electrical, optical and physical properties were investigated. The MWCNTs was doped with acceptor atoms which is Iodine, before it is being mix...
Titanium dioxide (TiO2) nanopowders of pure and niobium (Nb) doped TiO2 were synthesized using a sol gel immersed heater method. The nanopowders were then used as a filler in poly [2-methoxy-5-(2'-ethylhexyloxy)-p-phneylene] (MEH-PPV) to form hybrid organic-inorganic solar cells. In this study, the influence of TiO2 doped with different concentrations of niobium on the properties of nanohybrid MEH-PPV:...
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...
In this paper, we have deposited organic: inorganic thin films using poly [2-methoxy 5-(2'-ethyl-hexyloxy)-1, 4-phenylene vinylene] (MEH-PPV) polymer as electron donator with titanium dioxide (TiO2) acting as an electron acceptor, by spin-coating deposition technique. We have investigated at 10 wt%, 20 wt%, 30 wt% and 40 wt% of TiO2 composition effects on electrical, photoconductivity and optical...
Spin coating method is used to deposit nanocomposite CNT/MEH-PPV thin film on a glass substrate. The MEH-PPV which is in powder form was weighted and then dissolved into THF. Then, a certain amount of CNTs were added to the MEH-PPV solution. It is then stirred for 3 hours and sonicated for 1 hour to ensure that CNTs is well dispersed in the MEH-PPV solution. The addition of CNTs in the MEH-PPV solution...
Titanium Dioxide (TiO2) thin film has been synthesized using sol-gel method and deposited onto glass substrates using spin coating technique. These thin films are then annealed at various temperatures. The electrical and structural characterizations of the as deposited and annealed films were carried out using IV measurement with 4-point probe equipment and scanning electron microscopy (SEM). From...
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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