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Nanofiber composite plays important role in wide range application fields such as environmental, energy, sensor, chemical process, biotechnology and etc. In this research, we have successfully synthesized copper acetate/polyvinyl alcohol nanofiber composite by electrospinning process. Nanofiber composite was synthesized by following optimum conditions; applied voltage 20 kV, distance between nozzle...
In this study, we firstly synthesized ternary Cu2SnSe3 nano ink by novel organic solvent polyetheramine by solvent-thermal reflux method. Cu2SnSe3 thin films were prepared by solvent-thermal reflux method for Cu/Sn ratio in three different ratios of 2/1, 1.8/1, and 1.4/1. Structure, surface morphology, composition, and electrical and optical properties at different process conditions were measured...
The CuIn1-xGaxSe2 (CIGS) films are prepared by the selenization process including the deposition of the metal precursors followed by heating the metal precursors in a Se overpressure. The impacts of Se deposition rates on the morphology, grain growth, and atomic ratios of the resulting CIGS films are investigated. The CIGS films prepared at the high Se flow rate exhibit the improved surface morphology...
Ag-Cu nanoalloy has been synthesized directly in solution. The composition, morphology and structure of the Ag-Cu nanoalloys were characterized by XRD, TEM, EDS and SEM. The morphology of Ag-Cu nanoalloys appears small, uniform, and spherical. The size distribution mainly focuses on 80nm~90nm. An average composition is Ag48.9Cu51.1, which is within experimental error of the nominal 1:1 stoichiometry...
In this paper, highly dispersed copper oxide (CuO) nanoparticles with different size and morphology have been successfully prepared by a quick-precipitation method in DMAC-water mixed solvent. The as-prepared CuO nanoparticles were characterized by high resolution transmission electron microscopy (HRTEM) and x-ray diffraction (XRD). Several kinds of CuO particles with different morphology were obtained...
CuInS2 thin films have been prepared by one-step DC reactive sputtering process. Full characterizations have been carried out by EDS, XRD, SEM, optical transmittance and electrical measurement. XRD and SEM analysis of the films show that the crystallinity and morphology could be improved by altering the composition of the films to stoichiometric. The band gaps of samples with different Cu/In ratio...
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