Papers by Keyword: CDS Nanorods

Abstract: A bulk-heterjunction hybrid solar cell based on CdS nanorods as electron acceptor and conjugated polymers P3HT (Poly (3-Hexylthiophene)) as donor was fabricated through solution processing. Plasmon-active silver nanoparticle layers were introduced in the hybrid solar cell. Silver nanoparticle layers were fabricated using thermal evaporation deposition of 10 nm of silver thin layers on indium tin oxide (ITO) substrate followed by annealing. Under the surface plasmon excitation in Ag nanoparticles deposited on a semiconductor surface, increasing optical electrical field inside the photoactive layer led to an increased short circuit current density (Jsc) and improved fill factor (FF) of the cell. Consequently, under AM1.5G illumination (100 mW.cm^-2), the plasmon-decorated cell based on CdS-nanorods/P3HT showed a four-times increase of the power conversion efficiency (PCE) compared with the undecorated one.

Abstract: CdS Nanorods have been successfully prepared by hydrothermal synthesis technology by using cadmium nitrate and thiourea as the raw material,by using diethylene triamine as the template agent. The samples were characterized by the technique of XRD、TEM and SEM. The results indicated that the products were pure hexagonal CdS. This paper also used the samples as photocatalysts to study the degradation the solution of methyl orange. The concentration of methyl orange was unchanged during the process of experiment. We also investigated the effect of the amount of catalyst, and pH of the solution on the degradation rate of methyl orange. The experimental results showed that methyl orange degradation rate reached 90% with the amount of catalyst 0.020 g, solution pH of 3.5 and UV irradiation 120 min.

Abstract: The CdS/PVP fibers have been successfully prepared by electrospinning. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and UV-Vis absorption spectra were used to characterize the structure. Results showed that the concentration of polymer solutions and the CdS amount in the solvent influenced the morphology and the diameter of the electrospun fibers. The electrospinning from CdS/PVP in ethanol produced a structure having a combination of fibers, ribbons, beads and an unexpected half hollow sphere (HHS) structure. When the weight ratio of CdS:PVP was kept at 1:1000, the morphologies of electrospun products changed from HHS, to beaded fibers and ribbons, to beaded fibers, and to bead-free fibers with the increasing of the PVP concentration.