| Summary: | 碩士 === 國立臺灣師範大學 === 工業教育學系 === 105 === According to the research, doping niobium to titanium dioxide can effectively enhance the conductive properties. It is used to study conductive elements and dye-sensitized solar cells (DSSC). This study prepared niobium-containing solution and placed it on amorphous Anodic Titanium(iv) Oxide (ATO). After heat treatment, ATO formed anatase phase structure, which can be used for the photoelectrode of DSSC. Trying to change the concentration of niobium doping by different parameters with 5~20 μl/cm2 niobium-containing solution. Finally, composing the DSSC with the finished product of the photoelectrode, dye sensitizer (N719), the redox couple of electrolytes (I-/I3-), and the electrode (Pt-plated FTO).
This study is trying to discuss the affected efficiency by using different concentrations of niobium doped ATO film as the photoelectrode. To discuss the surface morphology and crystal structure of niobium doped ATO film formed by different process parameters. Among them, analyzing the properties by Scanning Electron Microscopy (SEM) and X-ray diffractometer (XRD). As the experiment progressed, UV-Vis was used to confirm the dye adsorption of the photoelectrode. Analyzing the DSSC's efficiency, Jsc, Voc, and F.F. by I-V curve. Analyzing the photoelectric conversion efficiency by IPCE. The experimental results show that the niobium doped DSSC is more efficiet, the parameter 5 μl/cm2 has the highest efficiency increased 49%.
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