量子點敏化光觸媒水裂解產氫與太陽能電池

張毓娟

doi:10.6342/NTU.2010.02762

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量子點敏化光觸媒水裂解產氫與太陽能電池

Quantum-Dot-Sensitized Photocatalytic Water Splitting Hydrogen Generation and Solar Cells

張毓娟 , Masters　　Advisor：劉如熹　　

繁體中文 DOI： 10.6342/NTU.2010.02762

碲化鎘；碲化汞鎘；光觸媒產氫；太陽能電池；量子點； cadmium telluride ； mercury cadmium telluride ； photocatalytic hydrogen production ； solar cell ； quantum dots

Abstract │ Reference (53) │ Altmetrics

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Global warming much attention in recent years, and the oil will eventually run out, so people positively develop the natural resources of materiaproduction and solar cell have become an important direction of development. It is necessary to develop novel working electrode in order to improve its energy conversion efficiency. In this study, utilizing hydrothermal method to grow high-isotropic one-dimensional zinc oxide nanorods on fluorine-doped tin oxide substrate as the working electrode. Synthesis of cadmium telluride or mercury cadmium telluride quantum dots as photosensitizer. Then quantum dots attached to zinc oxide nanorods on the working electrode, and then successfully produced functional effects of a photosensitive compound semiconductor films.
In this study, cadmium telluride and mercury cadmium telluride quantum dots adsorbed on the surface of zinc oxide nanorods. Using quantum dots absorb visible light in the red side band of the region to enhance the photocurrent and thus enhance the photoelectric conversion efficiency, which had successfully enhanced quantum dots-sensitized photocatalytic water splitting and quantum dot-sensitized solar cell efficiency. The results showed that the efficiency of cadmium telluride quantum dots join to ZnO nanorods increased from 0.66% to 1.83%, which enhance the efficiency of about 200%, and the efficiency of mercury cadmium telluride quantum dots join to ZnO nanorods increased from 0.66% to 2.24%, which enhance the efficiency of about 240%. 
In addition to doing cell toxicity test of the cadmium telluride and mercury cadmium telluride quantum dots and finding that cadmium telluride and mercury cadmium telluride quantum dots have a role in induced cell death. This will inhibit the cell growth. Therefore, further on the mechanism of quantum dots for analysis of apoptosis.

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[2] O’ Regan, B.; Grätzel, M. “A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films”, Nature 1991, 353, 737.
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[4] Raviendra, D.; Sharma, J. K. “Electroless deposition of cadmium
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[7] 莊佑豪，水溶液法製備氧化鋅薄膜及其光學特性研究，大同大學材料工程研究所碩士論文，民98.
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