| Summary: | 碩士 === 國立中正大學 === 物理系研究所 === 104 === Solar cell is by far the most promising candidate for providing a clean and sustainable energy, since it is more likely sufficient to replace fossil fuels. Compared to silicon-based solar cell, dye-sensitized solar cell (DSSC) has the potential advantages of flexibility, light weight, and low cost.
The photon-to-current energy conversion efficiency of DSSC is mainly determined by the photoanode consisting of dye photosensitizer dispersed on the internal surface of a nanoporous TiO2 (or others) support serving as an electron transporter. Currently, the main method for depositing dye onto the nanoporous support is by chemisorption of the dye molecules during immersion of the support in a solution of the dye. Matrix-assisted pulsed laser evaporation (MAPLE) is a variant of pulsed laser deposition modified for depositing organic materials.
This research uses the P90 titanium dioxide by the screen printing method for the electrode. We deposit melanin on the titanium dioxide by using Matrix-assisted pulsed laser evaporation (MAPLE) and then the electrolyte is I-/I3- dissolved in acetonitrile. We use the electrode preparation platinum thin film for counter electrode and then use solar simulator to measure efficiency at AM 1.5 (100 mW/cm2). We successfully deposit dye molecules on TiO2 surface and apply on DSSC. We also to make discussion on the feasibility to use different kinds of dyes.
In addition ,the previous study used melanin on DSSC ,then found some questions. We will discuss on feasibility to use melanin dye on DSSC.
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