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Cu(In,Ga)Se 2 (CIGS) surface was modified with Zn doping using a magnetron sputtering method. CuInGa:Zn precursor films targeting a CuIn 0.7 Ga 0.3 Se 2 stoichiometry with increasing Zn content from 0 to 0.8at% were prepared onto Mo-coated glass substrates via co-sputtering of Cu–Ga alloy, In and Zn targets. The CuInGa:Zn precursors were then selenized with solid Se...
Graphene nanosheets (GNs) have been investigated as a counter electrode for dye-sensitized solar cells (DSCs). Mesoporous TiO2 films are prepared from the commercial TiO2 nano-powders by screen-printing technique on fluorine-doped tin oxide (FTO) slides. GNs are applied to substitute for platinum as counter-electrode materials. GN films are screen printed on FTO glass using a paste based on GNs dispersed...
The stability of transparent conducting oxide (TCO) films with bi-layered structures has been tested in air at temperatures up to 550??C. Aluminum-doped ZnO and Sn-doped In2O3 (AZO/ITO) transparent conducting oxide (TCO) films were deposited on glass substrates by a home made radio-frequency (RF) magnetron sputtering system at room temperature in pure argon ambient. A typical commercial ITO and AZO...
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...
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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