In recent years, due to the shortage of fossil fuel energy and the deterioration of the environment, increasing attention has been paid to the utilization of geothermal power, especially medium–low-temperature geothermal energy, which occupies a large proportion of hot water resources. This paper summarizes the research status of Bi₂Te₃-, MgAgSb-, Mg₃Sb₂-, Mg₂(Si,Sn,Ge)- Ag₂Se-and AbSbTe₂-based near-room-temperature thermoelectric (TE) materials and summarizes the research results of TE technology used in geothermal water power generation. TE power generation technology can directly transform heat into electricity by TE devices, with the advantages of environmental protection, low carbon emissions, no mechanical moving parts, high thermal and mechanical stability and no noise. The improving performance of the investigated TE materials suggests that TE power generation technology is the key technology for clean geothermal power generation. Future research directions include further improving the TE performance, reducing costs and enhancing the research and design of TE devices and power generators.

中文翻译：

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近室温热电材料及其在地热发电中的应用前景

近年来，由于化石燃料能源的短缺和环境的恶化，人们越来越重视地热能的利用，特别是中低温地热能的利用，这种地热能占热水资源的很大一部分。本文总结Bi的研究现状₂碲₃ - ，MgAgSb-，镁₃的Sb ₂ - ，镁₂（硅，锡，锗） -银₂硒和AbSbTe ₂的近室温热电（TE）材料，并总结了用于地热水发电的TE技术的研究成果。TE发电技术可以通过TE设备将热量直接转化为电能，具有环保，低碳排放，无机械活动部件，高热稳定性和机械稳定性以及无噪音的优点。被研究的TE材料的性能改善表明，TE发电技术是清洁地热发电的关键技术。未来的研究方向包括进一步提高TE性能，降低成本以及增强TE设备和发电机的研究与设计。