dc.description.abstract | Currently, fossil coal is the primary source of electricity generation, but its usage has resulted in limited energy supply and environmental issues, including energy shortages and climate change. To address these problems, there is a growing emphasis on developing renewable energy as an alternative solution.
Among the various forms of renewable energy, thermoelectric power generation technology has garnered significant attention. This technology employs thermoelectric materials to convert waste heat from the surrounding environment into electricity. According to the Seebeck effect, thermoelectric materials generate a potential difference and subsequently produce an electric current when there is a temperature difference between the two sides. This enables the conversion between thermal energy and electrical energy.
While the conversion efficiency of thermoelectric materials still poses challenges, it holds immense potential as a green energy source. Researchers are continually making efforts to develop thermoelectric materials, including synthesizing new materials and improving structural design, with the aim of enhancing conversion efficiency. These advancements will contribute to the progress of thermoelectric power generation technology, reduce dependence on fossil fuels, and promote a more sustainable energy supply.
This paper primarily focuses on the research of P-type Mg2(SiSn) thermoelectric materials. The objective is to identify suitable metal contacts, conduct measurements and analysis on the samples, and ultimately test the output characteristics of the module. Among the tested samples, the one exhibiting optimal characteristics is Mg2SnAg0.02+25 at% Mg+24 at% Mg2Si+Al foil. This particular sample demonstrates a maximum Seebeck coefficient of approximately 366μV/K and a minimum room temperature resistance of 16.9756mΩ.
Subsequently, silver paste is utilized as a solder, and nickel plates are employed as bridging metals to measure the thermoelectric performance of the p-type and n-type samples with the optimal parameters. The maximum achieved output power is 174.45μW.
Overall, this research showcases the potential of thermoelectric materials in energy generation and emphasizes the ongoing efforts to improve their efficiency. The findings contribute to the development of sustainable and environmentally friendly energy sources while reducing our reliance on fossil fuels. | en_US |