战略空缺工程取得了创纪录的高柔性AgCu(Te,Se,S) 热电技术的进展
Nan-Hai Li1, Xiao-Lei Shi2, Si-Qi Liu1
1School of Chemistry and Physics, ARC Research Hub in Zero-emission Power Generation for Carbon Neutrality, and Centre for Materials Science, Queensland University of Technology, Brisbane, QLD, Australia.
Nature communications
|March 22, 2025
概括
我们使用空缺工程增强了塑料热电材料. 这一战略提高了性能并保持了灵活性,为先进的灵活热电发电机铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 能源转换 能源转换
背景情况:
- AgCu ((Te,Se,S) 合金是灵活发电机的有希望的p型塑料无机热电材料.
- 提高热电性能,同时保持可塑性是一个关键的挑战.
研究的目的:
- 开发用于提高AgCu (Te,Se,S) 合金的热电性能和可塑性的策略.
- 探索空缺工程的潜力,以优化热电性质.
主要方法:
- 计算设计指导了度的战略调整.
- (AgCu) 合金的合成和表征0.998Te0.8Se0.1S0.1合金.
主要成果:
- 在300K时达到0.62~,在343K时达到0.83~的高热电功率 (ZT) 值.
- 空隙工程优化了孔载体度,并引入了分散的Ag-S键和无形相,确保了高可塑性.
- 一个灵活的热电装置显示功率密度为~126μW cm-2.
结论:
- 空置工程是一种有效的策略,可以同时提高热电性能,并保持AgCu (Te,Se,S) 合金中的可塑性.
- 开发的材料显示出在可穿戴电子产品和灵活的热电发电机中应用的巨大潜力.
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