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As a new type of flat panel display technology, field emission display (FED) has drawn great interest due to the advantages of high display-quality and low power consumption. In this thesis, diode-type 16 times 16 matrix CNT-FED device was designed and sealed based on screen-printing technology. The device showed a low onset electrical field of 0.75 V/mu m and threshold field of 1.75 V/mu m. With...
Electrosorption of ions from aqueous solutions with carbon nanotubes and nanofibres (CNTs-CNFs) film electrodes has been demonstrated. The cost-effective, large area CNTs-CNFs film was synthesised on graphite substrate by low pressure and low temperature thermal chemical vapor deposition (CVD). Successful removal of Cu2+ from water by electrosorption of CNTs-CNFs films was achieved. The electrosorption...
The effect of chemical oxidation on the gas sensing properties of multi-walled carbon nanotubes (MWNT) is presented in this paper. The MWNT was chemically oxidized in a mixture of concentrated sulfuric and nitric acids. The oxidation time was varied from 4 to 12 hours. X-ray photoelectron spectroscopy (XPS) was used to study effect on the chemical composition of the nanotube surface. The MWNT was...
In this work, carbon nanotubes and carbon nanofibres (CNTs-CNFs) composite film was synthesized by low pressure thermal chemical vapor deposition. CNTs-CNFs film was characterized by scanning electron microscopy and Raman spectroscopy. The effect of different growth temperature on the morphology of CNTs-CNFs and electrosorption of NaCl solution by CNTs-CNFs film grown at 550degC, 600degC, 650degC...
Two different carbon nanotubes (CNTs) were synthesized by thermal chemical vapor deposition (CVD) system through two different apparatuses. Uniform deposition of CNTs on glass substrate was observed through optimizing parameters in the process of electrophoresis by scanning electron microscopy (SEM). The field emission properties were tested in the diode-type construction with the cathode-anode gap...
Dye-sensitized solar cells (DSSCs) have been constructed by using quasi-solid polymer electrolytes containing polyethylene oxide (PEO). TiO2 viscous pastes were prepared by grinding TiO2 powder (P25) with terpineol, ethylcellulose and acetylacetone. Nanostructured mesoporous TiO2 photoanodes were prepared by the screen-printing method on FTO substrates. TiO2 porous electrodes were sensitized using...
The simultaneous electrodeposition of the Cu-In-Se system was investigated. The study was carried out at pH 1.8 using sodium citrate as complexing agent for the Cu2+ ion. The synthesis of CuInSe2 semiconductor thin film was carried out by electrodeposition on indium-tin oxide (ITO) /soda-lime glass. The simultaneous composition of the Cu, In, and Se was achieved by constant potential electrolysis...
Indium tin oxide (ITO) films were deposited at room temperature with no oxygen flow on glass substrates by RF magnetron sputtering. The effects of sputtering power and argon ambient pressure were investigated. The morphology, structural and optical properties of ITO films were examined and characterized by X-ray diffraction (XRD), atomic force microscopy (AFM) and UV-VIS transmission spectroscopy...
The titanium dioxide nanotubes (TiNTs) were directly fabricated from commercial P25 TiO2 via alkali hydrothermal transformation. The optimized synthesis, thermal and hydrothermal stability, and consequent optical properties of the titanate nanotubes were systematically studied. The TiO2 nanotubes were characterized by transmission electron microscopy. Dye-sensitized solar cells (DSSCs) were constructed...
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