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- W836155560 abstract "In this thesis, we synthesized Co doped ZnO (Co/ZnO) nanorods and PbX (X=Se, Te) nanoparticles, which were used to fabricate solar cell. Co/ZnO nanorods was synthesized by hydrothermal method. A series of hydrothermal reactions were carried out to study the effect of Co2+ ions to the morphology of Co/ZnO nanocrystals. SEM/TEM images of Co/ZnO nanocrystals revealed the effect of initial concentration of Co2+ ion to crystal morphology. X-ray adsorption analysis indicated that the Co2+ ions are located in the tetrahedral sites of Co/ZnO host material. A mechanism to describe the crystal shape of as-synthesized Co/ZnO nanocrystals was proposed. UV-Vis and magneto-photoluminescence spectra, photocurrent measurement and SQUID were employed to study the effect of different Co2+ ion to physical properties of Co/ZnO nanomaterials. Electrochemical deposition was used to grow PbX (X = Se, Te) nanoparticles on the substrates of glass and TiO2 thin film. The particle size of PbX was controlled by the duration of deposition time. The morphology of PbSe exhibits irregular or cubic shape, whereas PbTe formed a unique leaf-shape crystals, depending on the reaction conditions. The as-prepared PbX/TiO2 films were used as electrodes for the semiconductor-sensitized solar cell. Three electrolyte solutions (I3-/I-, Na2S, ionic liquid) were used to evaluate the effect of electrolytes to the power conversion. For I3-/I- electrolyte, the as-fabricated solar cells exhibited low power conversion efficiency due to reaction between PbSe/PbTe nanoparticles and I3-/I- electrolyte. The Na2S solution and ionic liquid did not react with PbSe/PbTe but the power conversion efficiency were not improved as well." @default.
- W836155560 created "2016-06-24" @default.
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- W836155560 date "2009-01-01" @default.
- W836155560 modified "2023-09-24" @default.
- W836155560 title "Co/ZnO與PbX (X=Se,Te)奈米材料合成、特性分析與在太陽能電池上的應用" @default.
- W836155560 hasPublicationYear "2009" @default.
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